Indonesia Conference Directory

Corresponding Author
Putri Fitriasari

Institutions
a,b) Mathematics Education Study Program, University of PGRI Palembang
c) Mathematics Education Study Program, Sriwijaya University

Abstract
This study aims to train the creativity of mathematics education students in creating macromedia flash based instructional media through blended learning. Media is an important component in learning process which can help student to achieve learning objectives. In order to produce instructional media, creativity of teacher is needed so as to create innovative products. This research is using a descriptive quantitative research method with 28 students of class VIB mathematics education study program, FKIP University of PGRI Palembang. Data was collected by observation and performance test. The collected data from this research is analysed quantitatively descriptively. Based on the analysis of observation data, it is known that there are 22 and 6 students included in the category of very good and good respectively. In performance test, there are 20 students in very good category, 5 students in good category, 2 students in adequate category, and 1 student in poor category.

Keywords
creativity of students, instructional media, macromedia flash

Topic
Mathematics Education

Link: https://ifory.id/abstract/Y8WNJGVktKgy

Corresponding Author
Sri Retnowati

Institutions
a)Departemen Pendidikan Matematika, Universitas Sebelas Maret, Jl. Ir. Sutami 36A, Surakarta 57126, Indonesia
*sriretnowati919[at]gmail.com

Abstract
The 21st century fosters competition and challenges in various fields, including education. Various efforts have been made to improve the education quality in Indonesia; one of them is the implementation of education based on Science, Technology, Engineering, and Mathematics (STEM). Critical thinking is also an important thing for success in the 21st century. This study aims to describe the critical thinking profile of students in solving mathematics problems through STEM learning. The method is qualitative research. The subjects are three students with high, medium, and low ability. Test, interview, and documentation are employed as the technique of collecting data. The results reveal that the high-ability student is able to achieve all aspects of critical thinking and she actively participates in learning and teaching activities through the STEM learning model. The medium-ability student only fulfils a number of aspects. Meanwhile, the low-ability student can only fulfil the interpretation aspect and she does not actively participate in the learning process. The results are supported by the interview result with the students. They state that STEM learning is fun, give them an opportunity to think critically and facilitate them in understanding the lesson easily.

Keywords
critical thinking, STEM learning model

Topic
Mathematics Education

Link: https://ifory.id/abstract/KBrDW7zNEJkC

Corresponding Author
Bambang Eko Susilo

Institutions
a) Departemen Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
This study aimed to describe critical thinking skills in integral calculus lecture based on mathematical dispositions. This research used descriptive exploratory methods with instruments: test, scale, observation, and documentation. Data was taken from 105 undergraduate students from the mathematics education study program at a university in Central Java. Critical thinking skills are determined by using four indicators: analyzing problems, concluding and giving explanation, evaluating, and choosing problem-solving strategies. The results showed that: (1) there are no students with high and moderate negative mathematical dispositions; (2) students with low negative mathematical dispositions have poor abilities in evaluating and choosing strategies, and marginally adequate abilities in analyzing and explaining; (3) students with low positive mathematical dispositions have marginally adequate ability in analyzing, adequate abilities in explaining and choosing strategies, and good ability in evaluating; (4) students with moderate positive mathematical dispositions have adequate abilities in explaining and choosing strategies, and good ability in analyzing and evaluating; and (5) students with high positive mathematical dispositions have good abilities in analyzing, explaining, evaluating, and choosing strategies. There was a tendency of increasing achievement on indicators of critical thinking skills based on mathematical dispositions.

Keywords
Critical thinking skills; Integral calculus; Mathematical dispositions

Topic
Mathematics Education

Link: https://ifory.id/abstract/TGEjQxrWA2pH

Corresponding Author
Sufyani Prabawanto

Institutions
a)FPMIPA, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi No.229, Bandung 40154, Indonesia
*sufyani[at]upi.edu

Abstract
This research aims to produced a description and comprehensive understanding of the meaning of certain mathematical objects resulting from the depersonalization and repersonalization process. It also described their meaningful experience through real analysis and mathematics selected topic classes. This research was based on a fact that depersonalization and repersonalization processes indicate a new awareness and understanding of teacher thinking processes. The processes need to be developed for mathematics teacher candidates. To examine the processes deeply and to develop them. This study observed deeply the phenomenon of depersonalization and repersonalization of students in real analysis and mathematics selected topic classes. This research used a hermeneutic phenomenology approach. The hermeneutic approach was expected to be able to capture the meaning formed from the process of depersonalization and repersonalization selected concepts from the two subjects and able to reveal aspects of learning experiences. The result of this research, there are some form of depersonalization and repersonalization that appear in the classes. Some of depersonalization are construct an explicit or external knowledge and implicit knowledge, whereas repersonalization are identified learning obstacles, explored possible learning trajectory of the concept, developed didactical design of the concept, explored predictions and their anticipation of possible students- responses, prepared for design implementation, implemented the design, and been doing retrospective analyses.

Keywords
didactical design research; depersonalization; phenomenology; repersonalization

Topic
Mathematics Education

Link: https://ifory.id/abstract/t9JHLTfKAvCy

Corresponding Author
Agustan Syamsuddin

Institutions
Universitas Muhammadiyah Makassar

Abstract
Nowadays, reflective thinking is one of the important things which become a concern in learning mathematics. Reflective thinking is also used to look for solution toward the problem of mathematics given in the classroom because it can increase student-s willing in completing it. Reflective thinking is identified as a skill for future competence so that it should be trained to students in facing the challenges and responding demands of the 21st century. One of reflective thinking models is taxonomy of reflective thinking which aims to see someone with a reflective thinking skill by checking up, evaluating and testing the truth of a mathematical task which has be done. Subject, in this research paper, is student teacher who has cognitive style of field dependent and enrolled as a student in department of mathematics education. The purpose of this paper is to analyze the ability of prospective teachers mathematical task solving based on taxonomy of reflective thinking. To achieve this purpose is used a qualitative research in describing in depth related to mathematical problem-solving of subject who can be investigated from the subject-s behavior in completing the tasks assigned by paying attention the aspect of taxonomy of reflective thinking. This research report describes that the subject used some mathematics concepts and determined a strategy in solving problem by using the main point of problem based on keywords in two ways which can be implemented in every day life.

Keywords
Prospective Teacher, Mathematical Problem Solving, Taxonomy of Reflective Thinking, Field Dependent

Topic
Mathematics Education

Link: https://ifory.id/abstract/rqhtcMdU87JG

Corresponding Author
Hunaifi Hunaifi

Institutions
1Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
2Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
Abstract. This qualitative research aimed to describe students-s mathematical critical discourse on learning by Socrates Scientific. Subjects of this research were students in class VII of a junior high school in Bandarlampung. Data of this research was qualitative data about students mathematical discourse which were taken by observation, documentation, and interview. Three procedures of data analysis were data reduction, data display, and conclusion verification. Based on the result of the research, it was concluded that in mathematical discourse, there were: (1) interpretation and analysis as the dominant indicators of critical thinking ability, (2) clarification and investigation assumptions as Socratic question that was used by teacher more frequently, (3) communicating as Scientific phase that was more frequently appeared. Besides that, the research findings were characteristic pattern of mathematical discourse, mathematical discourse form, and the factors that influence students response in mathematical discourse.

Keywords
Socrates Method; Scientific Approach; Mathematical Critical Discourse

Topic
Mathematics Education

Link: https://ifory.id/abstract/2TtK7EN8pjBW

Corresponding Author
Ike Festiana

Institutions
a) Program Studi Pendidikan Ilmu Pengetahuan Alam, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*ikefestiana[at]student.upi.edu
b) Universitas Nahdlatul Ulama Lampung, Jl. Hanafiah Lintas Timur, Mataram Marga, Lampung Timur 34394, Indonesia

Abstract
The purpose of this research is to design and develop test representational fluency in physics course for electricity topic for students of electrical engineering. The test representational fluency used system Design and Development Research (DDR) with specific phase of development consists of analysis, design, development, and evaluation. The test was validation by five expert judgment. The The test consist of 25 item multiple choice. After design test and expert review and validation. This research was conducted at the universities in Lampung and was implemented with 35 participants. The result in this research was the test is valid and reliable to program implementation.

Keywords
Design and development research, test representational fluency

Topic
Physics Education

Link: https://ifory.id/abstract/Y9Vgu7wXZbUE

Corresponding Author
Putri Sasalia S

Institutions
a) Master Program of Mathematics Education, Universitas Syiah Kuala, Banda Aceh, Indonesia
putri.mulianamath[at]gmail.com
b) Mathematics Education Department, Universitas Syiah Kuala, Banda Aceh, Indonesia
mailizar[at]unsyiah.ac.id
c) Department of Informatics, Universitas Syiah Kuala, Banda Aceh, Indonesia
taufik.abidin[at]unsyiah.ac.id

Abstract
Remedial is a program that is designed in accordance with students- need which aims to improve their understanding of a topic before the student move forward to learn the next following topic. In Indonesia the current curriculum requires teachers to conduct a remedial when the students are not able to achive minimum score of students- achievement standard. However, based on a preliminary study, the implementation of remedial in Indonesia, particularly in Aceh, does not yet meet the requirement as most of teacher conduct a remedial by repeating the test or giving additional assignment. This study aims to design and develop e-learning based remedial problem in order to improve remedial for teaching and learning mathematics in senior high school. It is developmental research using System Development Life Cycle (SDLC) model. SDLC has five stages of development that are : planning phase, analysis phase, design phase, implementation phase and support phase. The result of the planning is revealed problems regarding to the implementation of remedial programs in schools. In the analysis phase, the results showed that, in delivering a remedial program, most of teachers gave the same questions as they provided for examination without an extra lesson or tutorial for the students. In addition, there was no teacher who used e-learning for the remedial. Finally, a design e-learning using Moodle 3.8 for remedial is also presented in this paper. For future direction, the last two phases of this research will be implemented.

Keywords
remedial in mathematics, e-learning, remedial using e-learning, system development life cycle, moodle

Topic
Mathematics Education

Link: https://ifory.id/abstract/BtnUXj3Gvmuw

Corresponding Author
Adib Rifqi Setiawan

Institutions
Madrasah Tasywiquth Thullab Salafiyyah (TBS), KH. Turaichan Adjhuri No.23, Kudus, 59315, Indonesia

Abstract
STEM that an acronym for science, technology, engineering, and mathematics defined as the integration of science, technology, engineering, and mathematics into a new cross-disciplinary subject in schools. We dont deny that the concept of integrating subjects to teach science in Indonesian schools, generally is not new and has not been very successful in the past. In addition, some people consider STEM as an opportunity while others view it as having problems. However, the answer to how STEM education implementation has not been studied yet comprehensively. Therefore, STEM education-s lesson plans is very important to be designed then implemented. This work designed STEM education-s lesson plan on topics of ecosystem, used R&D approach four-D model that reduced into three stage: define, design, and develop. This work is non-implementation throughtout.

Keywords
STEM education, lesson plan

Topic
STEM Education

Link: https://ifory.id/abstract/B2TvE7tmXf6p

Corresponding Author
Al Jupri

Institutions
Departemen Pendidikan Matematika, FPMIPA, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi No 229 Bandung, Jawa Barat, Indonesia.

Abstract
Symbol sense refers to an ability to give meaning and to see important structures to symbols, expressions and formulas. Designing algebra tasks for assessing student symbol sense ability is therefore important. This study aims to design types of tasks based on the theory of symbol sense for the topic of quadratic and related equations. To do this, first, we conducted a literature study on the theory of symbol sense. Second, we designed tasks based on characteristics of symbol sense and provided possible strategies to solve the tasks. Third, we validated the designed tasks to seven mathematics and mathematics education experts. The results included: (1) Three types of symbol sense tasks and predictions of strategies to solve the tasks; (2) Experts comments and suggestions for improving the quality of the tasks. We conclude that the designed tasks meet the criteria of the symbol sense characteristics and can further be used for research after some minor revisions.

Keywords
Algebra education, symbol sense, quadratic equations, symbol sense strategy, procedural strategy

Topic
Mathematics Education

Link: https://ifory.id/abstract/cgAXJ4kjmPWf

Corresponding Author
Ayesha Bilqis

Institutions
a) Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia
Jalan Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*ayeshabilqis[at]upi.edu
b) Departemen Pendidikan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia
Jalan Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
In this increasingly competitive 21st century global economy, it is necessary for students to have adequate skills to cope with demands of 21st century. This quasi-experiment research aims to get an overview of how to train 21st century skills by applying inquiry-project based learning with reading infusion strategy. The participants are 121 students, randomly picked from 288 students at one of the senior high schools in West Bandung district. The development of 21st century skills was measured using rubric adopted and adapted from Boss. The analysis used standards developed by Lati, which have been tested through inter-rater reliability technique with reliability value 0.67. The result shows that in experiment class, collaboration and communication skills can increase to “good” level. However, critical and creative thinking skills are still in “fair” level. While in control class, collaboration and communication skills can increase to “fair” level. But critical and creative thinking skills are declining to “very poor” level. Based on the results, it appears that inquiry project-based learning with reading infusion can help improving the development of certain 21st century skills. Lazy-to-read habit that students do still becomes an obstacle, therefore more appropriate ways are still needed in developing 21st century skills.

Keywords
21st century skills; Inquiry project-based learning; Reading infusion

Topic
Physics Education

Link: https://ifory.id/abstract/YVHbtjEzrgJT

Corresponding Author
Alin Mardiah

Institutions
a) Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta 13220, Indonesia
b) SMA Labschool Cibubur, Jl. Raya Hankam Kampus Labschool No. 15-20, Jatiranggon, Kota Bekasi, Jawa Barat 17432, Indonesia

Abstract
This study aimed to develop 22nd century skills through the integration of STEAM project in chemistry learning. The study involved the thirty three of year-11 students. The STEAM integration was implemented in the teaching of colloidal system through a project-based learning. The research employed a qualitative approach to explore the integration of STEAM in chemistry and students- 22nd century skills development. Data were collected through classroom observations, interviews, reflective journals, and chemistry concept test. Students designed an innovation project with the integration of STEAM in developing smoke absorber as the solution of the smoke pollution occur now a days. The study results were analysed based on the pattern themes found in multiple data sources. It shows students developed their critical thinking, creativity, collaboration and communication skills, then caring of environmental problems (5C), in addition to information, media, and technology skills. The study face challenges of integrating STEAM in chemistry learning with in empowering student, time resources and also to provide the contextual learning to raise the students- environmental awareness need to be explored

Keywords
Chemistry Learning; Colloidal System; STEAM; 22nd Century Skills

Topic
Chemistry Education

Link: https://ifory.id/abstract/N6ckAWrpvmgz

Corresponding Author
Wulansary Kartika Hayati Wahyono Putri

Institutions
Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

*wulansary.k[at]student.upi.edu

Abstract
This research was implemented to students from the 10th grade in one of high schools in Bandung city. The initial problem that became a background of this research was the existence of the learning obstacles which causes students less optimal in learning the concept of the distance in three dimensional shape so that learning becomes meaningless. The focus on this research was to develop a didactical design of the distance from a point and a line that constructed by considering the learning trajectory and the learning obstacles that have been found. This research used the qualitative method in the form of a didactical design research through three phases of the analysis that are prospective analysis, metapedadidactic analysis, and retrospective analysis, with the triangulation technique for collecting data. Based on the results and discussion of research, the didactical design that has been made is capable to overcome some learning obstacles. So, this design can be one of the recommendations on learning the concept of the distance in the geometry.

Keywords
Didactical design; distance between a point and a line; three dimensional shape; learning trajectory; learning obstacles

Topic
Mathematics Education

Link: https://ifory.id/abstract/4gRwTCGnVNQF

Corresponding Author
Muhammad Irwansyah

Institutions
Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Bima, Jl. Tandean Kel. Mande, Kota Bima 84119, Indonesia
*irwansyahmuh44[at]gmail.com

Abstract
The study aims to (1) to find out the stages of developing biology learning tools based on character education integrated with sustainable local wisdom, (2) to determine the validity, practicality and effectiveness of biology learning tools based on character education integrated with sustainable local wisdom, and (3) to find out the effect of biology learning tools based on character education integrated with sustainable local wisdom. The trial of this research product was conducted to 11th grade students of SMAN 2 Kota Bima in the school year 2018/2019. This research is a developing research which is based on Thiagarajan development model which consists of 4 stages are define, design, develop and disseminate. The instruments of this research are validation sheets, observation sheets, attitude assessment instruments, cognitive tests, and student response questionnaires. The results of this study indicate that developing biology learning tools based on character education integrated with sustainable local wisdom is valid, practical and effective to enhance 21st century attitude of students.

Keywords
character learning; sustainable local wisdom; 21st century attitude

Topic
Biology Education

Link: https://ifory.id/abstract/gv24YAHz3xcn

Corresponding Author
ELISABETH PRATIDHINA

Institutions
Physics Education Study Program, Widya Mandala Catholic University Surabaya

Abstract
Smartphone is example of communication technology evolution. At the past time, phone is only used for communication purpose, however nowadays smartphone functions are various. Although still limited, application of smartphone in high school physics is very potential. For physics learning platform, smartphone has some advantages such as it allows physics interactive illustration, it allows students to study anywhere and everywhere, it provides self-evaluation for students, and so on. In this research, we develop smartphone app as learning resource on circular motion topics. Circular motion is phenomenon that closely related to our daily life, however there are some physics quantities which need more visualization, as example is the distinction between linear speed and angular speed. This study aims to develop smartphone app which can improve high school students- conceptual understanding on circular motion. The app includes material, physics animation, exercise, and quiz.

Keywords
smartphone app, high-school physics, circular motion

Topic
Physics Education

Link: https://ifory.id/abstract/fhPcXFjnQtY6

Corresponding Author
Desak Made Anggraeni

Institutions
1Physics Education Study Program, STKIP Weetebula, Kabupaten Sumba Barat Daya
2Elementary School Teacher Study Program, STKIP WeetebulaKabupaten Sumba Barat Daya

Abstract
This study aims to describe the role of physic crossword puzzle learning media using the Eclipse Crossword app to develop the creative thinking skills of STKIP Weetebula students. The research method used was quantitative desciptive method. The sampling technique which was used in this study was Nonprobability Sampling, a type of purposive sampling. Second semester students of the Physics Education Study Program were the sample of this research. The instrument of the data collection used wasa questionnaire, this is to measure creative thinking skills of the students. Based on the results of the data analysis, it is found that the learning media of physics crossword puzzle using the eclipse crossword could develop creative thinking skills of STKIP Weetebula students

Keywords
physics crossword puzzle learning media, Eclipse Crosswordapp, creative thinking skills

Topic
Physics Education

Link: https://ifory.id/abstract/WdXJzVB2ZaUF

Corresponding Author
Martin Bernard

Institutions
a) Fakultas Pendidikan Matematika dan Sains, Institut Keguruan dan Ilmu Pendidikan Siliwangi
Jalan Terusan Jenderal Sudirman, Cimahi 40526, Indonesia
*pamartin23rnard[at]gmail.com

Abstract
Development of extensive animation media for the concept of moving images developed by students creative ideas, through extensive field analysis of various forms converted into rectangular shapes through several ways to use VBA for PowerPoint. The language of this program helps students to make the thinking process they do not need to memorize material related to vector analysis material about student thinking material which is part of the VBA language program with new ideas for students. Indicators that determine high-level thinking skills are 1) analysis, identifying concepts and being able to link concepts 2) Evaluating, students try to make steps systematically 3) Creating, student-oriented students to develop broad-based flat animation media by applying vector analysis into VBA for PowerPoint languages. The research method is Research and Development with 5 stages namely Analysis, Design, Development, Implementation, and Evaluation. For the assessment of media development in the first stage validated by media experts and material experts and for the second stage validated by users or students.

Keywords
Flat Field Extensive Animation Media, VBA for Powerpoint, High Level Thinking Skills, Vector Analysis.

Topic
Mathematics Education

Link: https://ifory.id/abstract/FkT4jUqnMG2y

Corresponding Author
Amaira Utami

Institutions
Universitas Pendidikan Indonesia

Abstract
Abstract. The scenario of 21st century learning should provide students with information acquisition skills through varied instructional material which evolved the integration of Science, Technology, Engineering and Mathematics (STEM) in school system. Therefore, this study is aimed to examine the development and validation of STEM-based instructional module particularly in earth-s structure and its dynamics topic. STEM framework provides guidance of several abilities and skills that must be possessed in the 21st century to complete the demands of skilful workers whom integrate technology. The subject of this research is one class of 7th grade students that consist of 39 students in one junior high school in Bandung, Indonesia. To measure students- academic development through STEM-based learning, a pre-test and post-test were given before the implementation of STEM-based instructional module. Additionally, two questionnaires were given to students. First, readability questionnaire which aims to measure the clarity, understandably and difficulty of each page of STEM-based instructional module. Secondly, a questionnaire given to students and teacher about their response towards layout, content and utility of STEM-based instructional module. The results of this research showed that students- academics development is significantly increasing which means that students retained significant amounts of information during the implementation of STEM-based instructional module. Students- overall learning gain is 0,65 that categorizes as moderate. Moreover, readability aspect and students- and teacher-s response towards STEM-based instructional module are categorized as very high. To sum up, STEM-based instructional module is valid to be used as educational material in learning STEM.

Keywords
STEM Education, STEM based Module

Topic
STEM Education

Link: https://ifory.id/abstract/4hRKDzqQ6Tju

Corresponding Author
ELISABETH PRATIDHINA

Institutions
Physics Education Study Program, Widya Mandala Catholic University Surabaya

Abstract
Fast development of technology has significant impacts on people-s lifestyle, smartphone is one of the examples. In the past time, mobile phone is mainly used only for communication, however present smartphone can be used for various purposes. Moreover, in most smartphone, the features can be added by installing new supported program. Smartphone is also popular among high school students in Indonesia. That makes smartphone is potential to be used in education, including in learning physics. Smartphone app has some advantages for physics learning platform such as it has high interactivity, it provides more attractive illustration, it is easy to be brought everywhere and so on. In this study, we develop a smartphone app to help high school students in learning rectilinear motion. The smartphone app includes simulation, material, video-animation, and quiz. The use of smartphone app in the learning process is expected to improve students- conceptual understanding and learning independence

Keywords
smartphone app, high-school physics, rectilinear motion

Topic
Physics Education

Link: https://ifory.id/abstract/2vuxqcCfmrep

Corresponding Author
Maulana Baharsyah

Institutions
1postgradyate School Indonesia University of Education
Jl. Dr. setiabudi No. 299 Bandung 40154, Indonesia
2Departemen Chemistry Education, University of Education
Jl. Dr. setiabudi No. 299 Bandung 40154, Indonesia

*) baharsyahlana[at]gmail.com

Abstract
Abstract. The skills of the 21st century are expected to be solution in the face of industrial revolution 4.0 this skill comes after students gain an education. So to confront such matters, required an innovative learning system corresponding with the advancement technology. It is therefore expected that STEM-based learning can be a solution in face of these challenges. This research aims to develop practical design based STEM learning colloidal designed to build students science literacy through the creation of probiotic ice cream leather waste from pineapple. Research methods used namely refers to a development model Thiagaran 4-D (Define, Design, Develop, Diseminate) but this only used in research to develop. The definition phase is carried out preliminary studies to know the use method teaching in schools General, stage design was done designing learning devices form of implementation plan Learning and worksheet. Participants in this research were 20 students of Class XI. Data analysis was carried out by calculating percentage and the results were interpreted to determine the validity and feasibility of the practicum design developed. The results of the study stated that the practicum design developed was feasible to be applied to learning for students of Class XI on Colloidal material.

Keywords
Practical Design, STEM, Probiotic Ice Cream, Pineapple Skin

Topic
STEM Education

Link: https://ifory.id/abstract/yMv9xmfZtR6d

Corresponding Author
Iva Alfiani Zakiah

Institutions
a) Program Studi Magister Pendidikan Kimia, Sekolah Pasca Sarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*akazakiahupi[at]upi.edu

b) Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The purpose of this study was to develop an instrument performance assessment tasks and rubrics in conventional titration (asidi-alkalimetri, argentometry, permanganometry, complexometry, iodometry). The Instrument has several skills, they are weighing, making solution, titrant preparation, pipette, and titration. This study using four phases based on Development and Validation methods are: preliminary study, instrument development, validation, and field testing. Phase 1, describe purpose of study and identification titration skill. Phase 2, development tasks and rubrics for assess performance of students. Phase 3, instrument was validated by five validators and then instrument was revised and modified become valid instrument with CVI=0.98. Phase 4, field testing was conducted at Vocational School Chemical Analysis program in Bandung with 30 students were divided into three groups assessed by four observers using the inter-rater method with statistical measurements are Intra-class correlation coefficient (ICC) and Krippendorff-s alpha (Kalpha). First group consisted five students has reliability value are ICC=0.92 and Kalpha=0.96, second group 10 students has reliability value are ICC=0,85 and Kalpha=0.80, and third group 15 students has reliability value are ICC=0.75 and Kalpha=0.66. Result of data analyisis can be concluded instrument has been developed are valid and reliable. Reliability in small group has higher than other group.

Keywords
Titration conventional, performance assessment, task and rubric, inter-rater

Topic
Chemistry Education

Link: https://ifory.id/abstract/reYZTAaCEgVx

Corresponding Author
Rina Febriana

Institutions
1,2,3Mathematics Education Department, STKIP PGRI Sumatera Barat, Jl. Gunung Pangilun, Padang 25143, Indonesia

Abstract
Inadequate textbooks, difficult language to understand and student-s low motivation became causing student scores on space geometry lectures to be low. This study aimed to develop problem-based learning based e-learning. The development used Plomp model consisting of 3 phases namely preliminary research, prototyping phase, and assessment phase. Those materials in e-learning were all materials existing Problem-Based Learning of Space Geometry module that were valid and practical. The instruments used were validity sheets, practical sheets and questionnaires. Data analysis technique used was descriptive qualitative and quantitative. The research shows that those contents of the module integrated into e-learning are categorized into valid and practical and result of Information and Technology expert validation states that requirements should exist in e-learning have also been fulfilled both in terms of construction and content

Keywords
Development, Problem-Based Larning, E-Learning

Topic
Mathematics Education

Link: https://ifory.id/abstract/EKZegacpR7Db

Corresponding Author
Evi Roviati

Institutions
1. Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia

2. Program Studi Pendidikan Biologi, Institut Agama Islam Negeri Syekh Nurjati Cirebon, Jl. Perjuangan By Pass Sunyaragi, Cirebon 45135, Indonesia

Abstract
This study aims to develop an instrument that is used to assess scientific argumentation skills of prospective biology teacher students in microbiology practical activities. This research uses research and development methods which consist of define, design, develop and dissemination stages. This study produced a test instrument consisting of 5 essay questions each divided into 4 questions that measure aspects of argumentation, namely claims, data, warrant and backing. Each question number contains situations and questions related to the existence of microorganisms in daily life based on laboratory activities. The results of expert validation and trials show that the five questions are valid and reliable. Thus, the results of this study recommend the use of this test instrument for research that assesses the skills of scientific argumentation in microbiology lab activities.

Keywords
scientific argumentation, microbiology, laboratory activity

Topic
Biology Education

Link: https://ifory.id/abstract/pqNJBT8mX2K3

Corresponding Author
Juli Firmansyah

Institutions
(a)Program Studi Pendidikan IPA, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi, Bandung 40154, Indonesia
(b) Program Studi Pendidikan Fisika, Universitas Serambi Mekkah, Jl.Tgk. Imum Lueng Bata, Bathoh, Banda Aceh 23245, Indonesia

Abstract
This research aims to design and develop a media lab in the form of Augmented Reality applications that are used in basic physics lab module. AR applications work with a tracking system and the reconstruction of the 2D marker contained in the experimental module to display 3D video animation. The method used in this research is the development of software includes the stages of collecting and analyzing the needs, do the design and manufacturing applications, validation and testing by the user, and revision. Results of the assessment by the AR application validator media and materials are respectively 80% and 85% in the predicate is valid and may be used after minor revisions. The results of trials by students as the user indicates that the 2D marker on lab module was initially less obvious and less sensitive at the time of scanning. However, after the revision of the 2D marker on lab module, 2D AR marker was sufficiently clear and sensitive at the time of scanning so that AR can help the general practical implementation and the AR content to support the practical implementation. The results showed that the development of AR applications had been successfully carried out and the AR application can function well with the scan time 1-1.5 second at a distance of 10-20 cm and successfully used in the experimental module at an angle of< 90 degrees.

Keywords
Augmented Reality, Module of Practicum, Basic Physics

Topic
Physics Education

Link: https://ifory.id/abstract/Ut2YGNZWrmE4

Corresponding Author
Endra Putra Raharja

Institutions
a) Program Studi Magister Pendidikan Fisika, Universitas Ahmad Dahlan
Jl. Pramuka No.42, Pandeyan, Yogyakarta, Daerah Istimewa Yogyakarta 55161, Indonesia
*endra1300007025[at]webmail.uad.ac.id

Abstract
The growth of smartphone users in Indonesia can be a good potential for various fields, one of which is education. This research aims to produce a circular motion experiment tool using sensor smartphone in the horizontal and vertical position and find out its feasibility for use by high school students. The method of research used is research and development or R&D with the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The research result shows that the experimental tool has shown the influence of object distance directly proportional to centripetal acceleration when the angular velocity is constant. In addition, there is also a difference in tangential acceleration at the top of the circle and under the circle in a vertical position. In the questionnaire test, the average score of the feasibility of the experimental tool was 91.25% with a very good category. While the average score of module feasibility is 86.25% with a very good category. The average score obtained based on the response from students is 94.5% with a very good category.

Keywords
Experiment Tool; Circular Motion; Sensor Smartphone

Topic
Physics Education

Link: https://ifory.id/abstract/E2ndyWGBCrNF

Corresponding Author
Thoha Firdaus

Institutions
Pendidikan IPA Sekolah Pascasarjana Universitas Pendidikan Indonesia

Abstract
The initial stage of the research has been carried out to develop learning models for physics teacher candidates. The study was conducted by instrument validation which aims to see the standard validity of a learning device. The validation of this instrument consisted of problem solving test instruments, analytical skills instruments, creativity ability rubrics, student worksheet instruments, and video analysis guide instruments. The method used in this study uses quantitative analysis methods. The results of the study have been made to develop collaborative real-world analysis models to achieve the goals of real-world physics learning. The results of the instrument test show that the instrument is feasible to use and ready to be used as a measurement tool for research.

Keywords
Instrument; Collaborative Real-World Analysis

Topic
Physics Education

Link: https://ifory.id/abstract/CzeZwymxaJhu

Corresponding Author
Tia Agnesa

Institutions
a) Pendidikan Matematika, Universitas Lampung, Jl. Prof. Dr. Sumantri Brojonegoro No. 1, Bandar Lampung 35145, Indonesia
*tia.agnesa88[at]fkip.unila.ac.id
b) Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
c) Pendidikan Guru Sekolah Dasar, Universitas Lampung, Jl. Prof. Dr. Sumantri Brojonegoro No. 1, Bandar Lampung 35145, Indonesia

Abstract
The main objective of this research is to develop a new didactic design that can optimize the development of students abilities, especially in the area of parallelogram and trapezium material. Didactic design was successfully developed throught three formal steps which was done by the researcher during the research process, namely didactic situation analysis before learning in the form of hypothetical didactic design including ADP, metapedadidactic analysis that is the implementation process of hypotetic didactic design, and retrospective analysis in the form of analysis linking the results of hypothetical didactic situation analysis with the results of an metapedadidactic that used to formulate empirical didactic designs. Composing the hypothetical didactic design is preceded by a preliminary analysis including studies of relevant previous researchs, analysis of learning videos, surveys of textbooks on school mathematics, theoretical analysis, and personalization conducted by the researcher. Design implementation is carried out in a junior high school in Bandung involving 94 students from three different classes. It is possible if the empirical didactic design which was produced in this study can be further developed through the same three formal steps

Keywords
didactical design research, area of parallelogram and trapezium

Topic
Mathematics Education

Link: https://ifory.id/abstract/KjfWcHUrJpth

Corresponding Author
Rita Mariyana

Institutions
UNIVERSITAS PENDIDIKAN INDONESIA

Abstract
This study aims to develop and improve the quality of learning by developing flipped classroom learning design that is easy to understand, easy to use by following the flow and digital media based so that learners can quickly understand the learning material thus helping to understand the learning. To describe the result of research from the improvement of learning design of flipped classroom based on digital media this research use descriptive method, with purposive sampling technique in learners who follow learning. Data from study results, questionnaires, interviews, observations and documentary studies were analyzed by quantitative and qualitative techniques. The final product is a digital media based classroom flipped classroom design

Keywords
Learning Design, Flipped Classroom, Digital Learning

Topic
Science Education

Link: https://ifory.id/abstract/dZ9Hx6cGpbTY

Corresponding Author
Ratna Ekawati

Institutions
a) Department of Electrical Engineering Education, Universitas Sultan Ageng Tirtayasa, Jl. Raya Jakarta Km. 4, Serang 42124, Indonesia
a b) Science Education Program, School of Post Graduate Studies, Universitas Pendidikan Indonesia, Jl. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
Essential concepts were important aspects in physics education, especially in the study of learning development, student evaluation, and curriculum planning. Several types of concept analysis models were commonly applied in the context of physics, namely semantic network techniques, concept formation (concept analysis), concept maps, and representing substantive structure. The stages of essential concept development were a concept analysis, concept map and essential concept construction. The research method used development research. The stages of development research include (1) the preliminary study phase, (2) the development study phase, (3) the evaluation phase. The main results of this study were essential concept on the topic of Kinematics.

Keywords
Essential concept, Kinematic

Topic
Physics Education

Link: https://ifory.id/abstract/xewFfAcH9V64

Corresponding Author
Martin Bernard

Institutions
a)Fakultas Pendidikan Matematika dan Sains, Institut Keguruan dan Ilmu Pendidikan Siliwangi, Jalan Terusan Jenderal Sudirman, Cimahi, 40526, Indonesia
*pamartin23rnard[at]gmail.com

Abstract
Geometry is a part of mathematics that deals with points, lines, fields, waking up flat, and building space. Basic knowledge for understanding geometry, namely the principle of the euclid postulate, phytagoras theorem, Thales is a mathematical philosophy that develops geometry. And the process of their thinking that students must understand and master to understand geometry. Of course, students must have good analytical skills when dealing with geometry questions that can be solved based on definitions, theorems, axioms, and entries and measured based on cognitive abilities namely understanding, connection, communication, reasoning, critical and creative, each of which has indicators as reference. This can be seen from the results of students in geometric analysis of how to compile geogebraic scriting algorithms and run the language as a result of problem solving.

Keywords
Geometry Analysis, Geogebra Scripting, Student Cognitive Ability.

Topic
Mathematics Education

Link: https://ifory.id/abstract/tKP9BR2L6Wfw