Indonesia Conference Directory

Corresponding Author
Reski Pahdi

Institutions
(a) Syiah Kuala University, Kopelma Darussalam, Banda Aceh 23111, Indonesia
(b) Departemen Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The era of globalization requires qualified human resources (HR) who have critical, systematic, logical, creative, and willingness to collaborate effectively. Indonesia-s participation in the Program for International Student Assessment (PISA) is to analyze how the development of the educational program in Indonesia is compared to other countries in the world. The purpose of this study was to explain or describe the students- higher-order thinking skills (HOTS) in solving PISA-Based questions on predetermined indicators. It includes logical and reasoning, analysis, evaluation, and creation skills. This study used a descriptive qualitative approach. Data collection used was documentation, tests, and interviews. The results of research from 40 students spread across several junior high schools in Banda Aceh found that 15 students were able to perform logical and reasoning skills, analysis, evaluation, and creation well in completing several questions, so that they were included as the students who have higher-order thinking skill in medium level. Furthermore, 25 students were not able to do the ability of analysis, evaluation, creation, logical and reasoning well in completing all the questions, so that they were included as the students who have higher-order thinking skills in low levels.

Keywords
PISA, Higher-Order Thinking Skills (logical and reasoning ability, analytical skills, evaluation, creation)

Topic
Mathematics Education

Link: https://ifory.id/abstract/v6YTRya8dbg4

Corresponding Author
atika suri

Institutions
(a)Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
(b)Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
Attitude assessment is one of the important things that can help teacher to know how the developing of students attitude in learning process. This study aims to present the implementation of attitude assessment by mathematics teacher at school. This study was qualitative descriptive research. The data were collected by using observation and interview on one of teachers of 8th grade in Cimahi. The result shows that the teacher was still difficult to implement attitude assesment. It caused the teacher had the obstacles to develop attitude rubric assessment so that the students had negative attitude toward mathematics in classroom. Therefore the teacher need any contrubutions of mathematical resilience which have any value, struggle, growth, and resilience to help teachers for developing attitude rubric assesment. At the end of this article it is also presented the contributions of mathematical resilience to develop attitude rubric assessment in mathematics learning.

Keywords
Attitude rubric assesment; Mathematical resilience

Topic
Mathematics Education

Link: https://ifory.id/abstract/kQrHPTDJ6Ahg

Corresponding Author
Ibrohim Aji Kusuma

Institutions
a) Graduate School Program, Universitas Negeri Yogyakarta
Jl. Colombo No. 1 Yogyakarta
*ibrohimaji.2018[at]student.uny.ac.id
b) Faculty of Mathematics and Science, Universitas Negeri Yogyakarta
Jl. Colombo No. 1 Yogyakarta

Abstract
Midterm exam is used to asses the extent of students‘ outcomes and mastery level of competencies in half-one semester of learning. This study aims to analyze the characteristics of item test of mathematics midterm exam of 11th grade secondary students. This study was quantitative research using descriptive explorative approach. Midterm test script consist of 40 questions with its answer key and 145 students answer sheets have collected. The midterm script and its answer key ware validated by three expert and students answer sheet was analyzed using classical test theory method using QUEST. The study shows that midtest test script and its answer key was valid with score 0,93 using Aiken indeks and internal consitency score was 0,74. It means that midtest script was feasible in learning but cannot be used to reflect students- knowledges and skills. Fit Pt-biserial score was 52,5% and Low Pt-biserial score was 47,5%. Besides, 4 items ware categorized as difficult problems, 34 items were medium and 2 items were easy problems. The difficult items consist of the arithmetic series related to real problems, infinite geometric series, algebraic limits with substitution of fraction forms containing roots and factorzation of fraction forms containing exponential.

Keywords
Item test characteristics; Midterm exam; Classical test theory

Topic
Mathematics Education

Link: https://ifory.id/abstract/XpkEmCdMvP8T

Corresponding Author
Muntazhimah Muntazhimah

Institutions
(a) Universitas Muhammdiyah Prof. Dr. Hamka
*muntazhimah[at]uhamka.ac.id

(b) Universitas Pendidikan Indonesia

Abstract
Many study explained that one of the ways to enhance student-s mathematics ability is by giving the students mathematics learning which could encourage them to control the cognitive processes that they have. The alternative is could be metacognitive strategy. By metacognitive strategy, students are guided to be able to realize what they know and what they don-t know in order to resolve the problem. Metacognitive strategy could be apply in collaborative learning settings in wich collaboration is also one of the competencies in 21st century skills. This study aims to explain the applying of metacognitive strategy in collaborative learning setting at mathematics class by preliminary study and literature study which summarizing and analyzing the result of various study that has been done. Using metacognitive in collaborative learning will increase mathematics ability because it foster confidence and awareness of mathematics concepts and principles learned and control the thought processes carried out .The impact is the metacognitive strategies could be applied in collaborative learning settings in order to enhance student-s mathematics ability

Keywords
metacognitive strategy, collaborative Learning

Topic
Mathematics Education

Link: https://ifory.id/abstract/CWRyfZtX64wn

Corresponding Author
Viviana Murni

Institutions
Universitas Katolik Indonesia Santu Paulus, Jln Jendral Ahmad Yani No. 1, Ruteng, Flores, Indonesia

Abstract
This research intends to produce a mathematical learning design based on Manggarai Local excellence in developing the higher-order thinking skills of students at extraordinary school. This research was a design research that were through three stages, namely initial research, implementation, and retrospective analysis. Data collection were done through posttest results, questionnaires, and observation. Data were analyzed descriptively. The result of the research is mathematics learning based Manggarai local excellence can develop higher-order thinking skills of students at extraordinary school. This result can be motivation for readers or teachers to integrating the local excellence in learning activities.

Keywords
Mathematical Learning; Manggarai Local Excellence, HOTS

Topic
Mathematics Education

Link: https://ifory.id/abstract/bHXNf4nyALc8

Corresponding Author
Nur Eva Zakiah

Institutions
Program Studi Pendidikan Matematika, Universitas Galuh Ciamis, Jl. R. E Martadinata No. 150, Ciamis 46274, Indonesia

Abstract
The implementation of learning with hybrid learning where learning becomes varied, interactive and communicative. Project-Based Learning (PjBL) is an innovative approach to learning that teaches a multitude of strategies critical. Modification of Hybrid-PjBL learning activities is still rarely conducted. Thus, this study aims to describe creative thinking skills and self-regulated learning of preservice teacher who participation Hybrid-PjBL learning activities. The population was all the fourth-semester students in the Mathematics Education Study Program, Galuh University. The study sample involved one class selected with purposive sampling technique, who took the course on Teaching and Learning Strategies. This study used quantitative descriptive with data in the form of creative thinking skill notes, and self-regulated learning questionnaires. Data analysis used descriptive statistics. The results showed that the application of Hybrid-PjBL to students creative thinking skills based on fluency, flexibility, and novelty in mathematical problem solving including good category, and self-regulated learning students had a positive attitude. This study contributes to the study of literature as an alternative learning model relevant to the demands of the twenty-first century scheme.

Keywords
Creative thinking skills, Hybrid learning, Project-based learning, Self-regulated learning

Topic
Mathematics Education

Link: https://ifory.id/abstract/kWTEbhA6nYjf

Corresponding Author
Ida Nuraida

Institutions
Jl.R.E Martadinata No. 150. Ciamis. Universitas Galuh.
ida.nuraidamath[at]gmail.com

Abstract
This research is backed by the difficulties of junior high school students in linear equation system material. The focus of this research is to produce the Hypothetical Learning Trajectory (HLT) system of linear equations based on the development of Learning Trajectory (LT) with the aim of research to improve students mathematical communication skills. Research method used design Research with 3 phases:, Preliminary design, teaching experiment, and retrospective analysis. The subject of study in SMP grade VII in Tasikmalaya district. This research uses the instrument of communication skills test students. Processing of research data using test-T, Test-T, Mann-Whitney U test, and Kruskal-Wallis test. Based on the results of the research obtained: (a) HLT results from the development of LT linear alignment system in RME to improve student mathematical communication skills; and (b) students who acquire RME learning have increased mathematical communication skills greater than those who acquire conventional learning.

Keywords
Hypothetical learning trajectory, mathematical communication, learning trajectory, design research, realistic mathematics education

Topic
Mathematics Education

Link: https://ifory.id/abstract/6uZD7Rtgrxvm

Corresponding Author
Dewi Adharini

Institutions
1Program Studi Pendidikan Matematika, Sekolah Pasca Sarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
dewimtk98[at]gmail.com
2Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
Abstract. This study aims to determine the mathematical critical thinking skills and the level of self-confidence of high school students in solving vector problems. Mathematical critical thinking skills and self-confidence are basic capital that students must have so students are confident in solving each vector problem based on critical thinking processes. This type of research is qualitative descriptive. Participants in this study were high school students of class X IPA in one of the public high schools in the city of Cimahi consisting of 30 students who were determined by purposive sampling technique. The instruments in this study were researchers as the main instruments and supporting instruments, namely the test questions of mathematical critical thinking skills of high school students in vector chapter consisting of 5 items, a self-confidence scale consisting of 30 statements, and interview guidelines. The results obtained from this study are students have low critical thinking skills and medium self-confidence. The low level of critical thinking is caused by students being unable to provide reasons, evaluate answers and identify data / concepts / definitions. Suggestions for further research are habituation of students with mathematical critical thinking skills

Keywords
Self Confidence, Mathematical Critical Thinking, Vector

Topic
Mathematics Education

Link: https://ifory.id/abstract/3xDvjd4TMCg7

Corresponding Author
Ferry Ferdianto

Institutions
Universitas Sswadaya Gunung Jati

Abstract
This study aims to identify learning Obstacle students in SPLTV material. this research is based on the findings of students who cannot answer or solve SPLTV problems related to daily life or contextual. The research method used in this study is a descriptive qualitative method with sampling using a purposive sampling technique. Identified Data from analyzing the results of student answers to the test questions SPLTV material in accordance with learning indicators and indicators of visualization ability. The results from this study are obstacles that often occur in students, namely 1) Learning Obstacle related to concepts in the material, and 2) related in linking a concept

Keywords
learning Obstacle, visualization ability, SPLTV

Topic
Mathematics Education

Link: https://ifory.id/abstract/VhefYmJ9gXER

Corresponding Author
Masriyah Masriyah

Institutions
Universitas Negeri Surabaya
Institut Teknologi dan Sains Nahdlatul Ulama Pasuruan

Abstract
Mathematics has an important role in developing the human mind power, one of them is critical thinking. The critical thinking ability might be taught by using problem solving. The strategy that is used to solve the problem can be affected by student-cognitive style. The research purpose is to identify student- critical thinking ability in problem solving based on their cognitive styles. The research subjects are two student who have reflective or impulsive cognitive style. The data were collected by giving cognitive style, mathematics ability, and problem solving tests, and interview. The research result showed that the reflective student has seven indicators of critical thinking ability, they are the ability to comprehend and express the meaning of information, distinguish relevant and irrelevant information, analyze the data, collect and organize information, find ways of completion, draw conclusions, and evaluate the completion. Based on the level of critical thinking, she is very critical. While impulsive student has four of the seven indicators of critical thinking ability, they are the ability to comprehend and express the meaning of information, distinguish relevant and irrelevant information, collect and organize information, and draw conclusions. Based on the level of critical thinking, she is critical enough.

Keywords
Critical Thinking Abilities, Problem Solving, Cognitive Style

Topic
Mathematics Education

Link: https://ifory.id/abstract/dW6h39JKMC7T

Corresponding Author
Findinilah Faraswati

Institutions
1) Departemen Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*findinilah.faraswati[at]upi.edu
2) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The underlying problem of this research is the importance of assessment in building mathematics learning. Assessments cannot be viewed separately from learning, but both are mutually integrated. The purpose of this research is to obtain an overview of the facts in the field related to the views of mathematics teachers on the assessment and implementation of assessment in the 2013 curriculum. The used research method is a qualitative research with a case study approach which conducted in teachers from elementary and junior high schools in Bandung and West Bandung Regency. The results of this research are obtained the fact that the teacher implementation the assessment of learning, but has not optimized the assessment as learning and assessment for learning.

Keywords
impelementation of assessment; mathematics learning

Topic
Mathematics Education

Link: https://ifory.id/abstract/ARm7ekMQLxru

Corresponding Author
Anton Nasrullah

Institutions
Universitas Mathlaul Anwar; Universitas Bina Bangsa

Abstract
The purpose of this study was to apply peer tutoring learning to improve students mathematical understanding skills. The method used in the study was a quasi-experimental method with a pre-test post-test control group design. The place of research was conducted in one of the universities in Banten. Samples were taken by two classes purposively. The research sample chosen consisted of two classes, namely 39 students in the experimental class and 38 students in the control class. The research instrument used was a test of comprehension ability. Data analysis is used in processing N-Gain results. The results of the study show that: 1) the achievement of the ability of mathematical understanding of students who study with peer tutoring learning is better than students who study conventionally; 2) improvement in students mathematical understanding ability in experimental class (peer tutoring) better than control class (conventional)

Keywords
Peer Tutor, Understanding Ability, Conventional

Topic
Mathematics Education

Link: https://ifory.id/abstract/U7WaYFnbTHKC

Corresponding Author
Saleh Haji

Institutions
(1) Bengkulu University, Indonesia
(2) Universitas Terbuka, Indonesia

Abstract
This research was aimed to implement Realistic Mathematics Education learning model with outdoor approach in elemtary school at Bengkulu. The method used in this research was quasi-experiment. The research design used was pre-test post-test group design. Sample of the research were 94 students taken from 5th grade elementary students in Bengkulu. The instrument used about presenting and processing data was 4 items. Data was analized qualitatively and quantitatively. The result from the research shows that Realistic Mathematics Education learning model with outdoor approach in elementary school students may improve student-s understanding ability about mathematics concept for high level school by 0.45; for medium level school by 0.41; and for low level school by 0.27. Meanwhile, the achievement of students- mathematics concept understanding in elementary school for high level school is 77.31; for medium level school is 73.92; and for low level school is 57.86. The implication of research result is that the use of Realistic Mathematics Education learning model with outdoor approach is needed to improve the mathematics concept understanding of elementary school students.

Keywords
Realistic Mathematics Education, Outdoor, Presenting and Processing Data

Topic
Mathematics Education

Link: https://ifory.id/abstract/GnpKx7Tf4Q8V

Corresponding Author
Desty Rupalestari

Institutions
(a) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia
(b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia

Abstract
The purpose of this study was to describe the implementation of skills assessment based on the 2013 Curriculum in one of the Bandung State Middle Schools. This study is descriptive qualitative research. The study was conducted in the even semester of the school year 2019/2020 with research informants are 2 mathematics teachers who teach mathematics in class VIII. The data were collected by using observation and interview. The results of this study are that the teachers only carry out the assessment of practices, products, and portfolios. The implementation of this type is carried out without using the rubric assessment. This is because the teachers have the difficulties in preparing objective assessment rubrics even though the school has implemented In House Training. This is because there is rarely an evaluation of In House Training. By carrying out an evaluation of the In House Training, it is hoped that it can help teachers in developing skills assessment rubrics so that they can carry out skills assessments properly.

Keywords
Skills Assessment; In House Training

Topic
Mathematics Education

Link: https://ifory.id/abstract/kgC4U7LZXypn

Corresponding Author
Mila Kristina

Institutions
IKIP SILIWANGI

Abstract
This research is backed by a low representation ability. Learning model that is expected to improve the skills of mathematical representation of students is through a generative approach. This research aims to improve the quality of students mathematical representation skills. Research of this class action was done in SMP Negeri 3 Bayongbong. The subject of his research was a grade VIII-F student with 32 people. Research instrument in the form of mathematical representation ability test. From the results of class action research showed improved quality from cycle to cycle.

Keywords
Mathematics Communication, Mathematics Representation, Generative Approach

Topic
Mathematics Education

Link: https://ifory.id/abstract/RFAZhz6wa793

Corresponding Author
Yuyun Hermansyah

Institutions
IKIP Siliwangi Bandung

Abstract
Mathematics is one of the subjects that must be taught in school, of course, has an important role in achieving the educational goals mandated by the Law, namely to equip students with logical, analytical, systematic, critical, and creative thinking. Therefore, teachers are required to be able to use learning models so that the material is easily understood or understood by students. This study aims to determine the increase in mathematics learning activities and results of class VII students through the ability of understanding through an inductive approach at Samarang Garut Muslim Middle School with research subjects of class VII students with 30 students consisting of 14 male students and 16 female students. The research subjects were taken randomly. The procedure for implementing the action is a cycle consisting of 4 (four) stages, namely: 1). Planning, 2) Implementation, 3) observation, and 4). Reflection. Data collection is done by observation and evaluation/testing. Activity observation results show that there is an increase in each cycle. Likewise with learning outcomes in each cycle has increased.

Keywords
mathematical understanding ability, Student Learning Activity, Inductive Aprouch

Topic
Mathematics Education

Link: https://ifory.id/abstract/dEk4TDgJLwuR

Corresponding Author
Putri Eka Indah Nuurjannah

Institutions
1) Mathematics Education, Institut Keguruan dan Ilmu Pendidikan Siliwangi, Jl. Terusan Jenderal Sudirman, Cimahi 40526, Indonesia
*putrimuhid[at]gmail.com
2) Mathematics Education, Institut Keguruan dan Ilmu Pendidikan Siliwangi, Jl. Terusan Jenderal Sudirman, Cimahi 40526, Indonesia

Abstract
The aim of this study was to examine the achievement and improvement of MLA of junior high school students who obtained a CA and obtained CL. The method used is quasi-experimental design with a nonequivalent control group. This research was conducted in SMPN in West Bandung Regency with a sample of grade 8th students as many as 33 experimental class students and 27 control class students. The instrument used was the MLA 3rd level test as many as 2 items and 4th level as many as 3 items. The data analysis used was the Mann-Whitney U test. The results of the study found that 1) MLAs initial in both classes was the same; 2) the average posttest that gets contextual learning and those who get regular learning is quite different; 3) Mann Whitney U test scores on the posttest and normalized gain obtained Sig. = 0,000 < 0,05, then Ho is rejected. This means that the achievement of MLA of students who get CA is better than those who get CL. The same gain also in the normalized gain, Sig. < 0.05, meaning that the increase in MLA of students who get CA is better than those who get CL.

Keywords
Mathematical literacy ability; Contextual approach

Topic
Mathematics Education

Link: https://ifory.id/abstract/bY6my3MhXVcn

Corresponding Author
Miska Agustina

Institutions
Program Studi Pendidikan Matematika, Universitas Bengkulu, Jl. WR Supratman, Kota Bengkulu 38122, Indonesia

Abstract
The purpose of this study is to improve student learning outcomes in Algebra Abstract by applying a scientific approach assisted by Student Worksheets (LKM). This type of research is Classroom Action Research (CAR) which is carried out in three cycles with research flow, namely planning, observing and reflecting. The subjects of this study were students of the semester 201/20/2019 TA totaling 37 students. The instrument used in this study was the Learning Outcomes Test for Abstract Algebra. The results of this study indicate an increase in each cycle. Judging from the cycles I, II, III, found the average learning outcomes 51.35, 77.02 and 89.59.

Keywords
Learning Outcomes, Scientific Approach, Student Worksheet

Topic
Mathematics Education

Link: https://ifory.id/abstract/te2YZFDp8aN6

Corresponding Author
Aisyah Dianti

Institutions
Universitas Bengkulu

Abstract
Aiming of this research was to improve student learning outcome in mathematics Grade VIII SMP Negeri 11 Kota Bengkulu by applying Generative learning model in the class management. The design of this research was classroom action research with the steps were: planning, acting, observing and reflecting. The subject of this research was 32 students of Grade VIII B SMP Negeri 11 Kota Bengkulu on even semester academic year 2018/2019. Data collection was done by using step 4 application in student worksheet and cycle test sheet. The generative model steps in this research were step 1 preparation, step 2 focusing, step 3 challenge and step 4 application. Class management with applying generative learning model improved student learning outcome by: (1) step 1 preparation trained student to remember the topic; (2) step 2 focusing trained student to construct the concept by them self; (3) step 3 challenge trained student to solve the real problem using concept that they got; and (4) step 4 application trained student with the exercises. The average of student learning outcome improved from first cycle to third cycle were: 66,48; 74,70; 83,75 with classical learning outcomes were: 43,75%; 62,50%; 87,50%.

Keywords
class management, generative learning model, learning outcome

Topic
Mathematics Education

Link: https://ifory.id/abstract/aEjVU42RLdBp

Corresponding Author
widya paramita sari

Institutions
Prodi Pascasarjana(s2) Matematika Universitas Bengkulu

Abstract
IMPROVING CONCEPT UNDERSTANDING ABILITY THROUGH INQUIRY LEARNING WITH JIGSAW METHOD IN ALGABAR LECTURE ABSTRACT Widya Paramita Sari1 *, Saleh Haji12, and Zamzaili2 1 Program Studi Pendidikan Pascasarjana (S2), Universitas Bengkulu, Jl. WR Supratman, Kota Bengkulu 38122, Indonesia *widyaparamitasari86@gmail.com1, * salehhaji@unib.ac.id 2 and *zam.zaili@yahoo.com 3 Abstract. This study aims to determine Improving the ability of understanding concepts through inquiry learning with student jigsaw methods in the Mathematics Education Study Program FKIP Bengkulu University. This type of research is a classroom action research (CAR) that will be conducted in several cycles, namely the planning stage, the implementation stage, the leveling stage and the reflection stage. The subjects in this study were the sixth semester students of mathematics education FKIP Bengkulu University, amounting to 37 students. The results showed that inquiry learning with the jigsaw method can improve students understanding of concept skills. The increase in the average value of students from cycle I to cycle II is 61.89 and 78.37. Keyword: Oncept Understanding Ability, Inquiry learning Model and Jigsaw Method.

Keywords
Oncept Understanding Ability, Inquiry learning Model and Jigsaw Method.

Topic
Mathematics Education

Link: https://ifory.id/abstract/hU9ABqmcMWtX

Corresponding Author
ENEN NURBAETI

Institutions
1) Graduate Student of Mathematics Education, IKIP Siliwangi, Cimahi, Indonesia
*syifanurbaeti92[at]gmail.com
2) Graduate Student of Mathematics Education, IKIP Siliwangi, Cimahi, Indonesia
3) Mathematics Education, IKIP Siliwangi, Cimahi, Indonesia

Abstract
The purpose of this study was to examine the problem of achievement and improved critical thinking skills and dispositions mathematical high school students between those who use the scientific approach to integrating brain based learning with a scientific approach , examining the association between variablesand an overview of student performance. This study is an experimental study with a design pretest-posttest design. Sampling in this study using purposive sampling technique . The instruments used were tests and non-tests , the test instruments included tests of mathematical critical thinking skills while the non-test included attitude scale tests Student mathematical disposition . The results showed that the achievement and improvement of critical thinking skills (CTS) with a scientific approach to integrating Brain-based Learning (SAIBBL) better than class with scientific approach (SA). Mathematical Disposition (MD) student in the classroom with using learning (SAIBBL) better than students in class with SA. There is a strong association between CTS and MD . The overall picture of student performance with SAIBBL is superior and students are more active in learning. These results prove that the use of SAIBBL is better than SAI.

Keywords
Critical Thinking Skill, Mathematical Disposition, integrated Saintific Approach To Brain Based Learning

Topic
Mathematics Education

Link: https://ifory.id/abstract/9Gu7KcemJMrj

Corresponding Author
Asri Ode Samura

Institutions
a) IAIN TERNATE, JLn. Dolphins Kelurahan Dufa-dufa Ternate, Indonesia, Postal code (97727)
*asri22samura[at]gmail.com
b) Indonesian Education University, Bandung, Jl. Setiabudi Bandung, Indonesia.
c) Indonesian Education University, Bandung, Jl. Setiabudi Bandung, Indonesia.

Abstract
The study was conducted to determine the critical thinking skills mathematically using a problem-based learning model. This type of quantitative research is designed in an experimental model, using a nonequivalent control-groups pattern. Sampling is not random. A sample of 76 people consisted of two classes. Both classes are given different treatments. Retrieval of data, performed tests twice, namely Pre-test and Post-test. Data were analyzed using independent sample t-test. Hypothesis test results, there is an increase in mathematical critical thinking skills, where the t-test on the value (sig. (2-tailed)) is less than the value of α. conclusion of problem-based learning can improve mathematical critical thinking skills.

Keywords
Mathematical critical thinking skills, problem-based learning.

Topic
Mathematics Education

Link: https://ifory.id/abstract/TRzkNyLH4FEh

Corresponding Author
Julita -

Institutions
Universitas Pendidikan Indonesia

Abstract
The aim of this study is to comprehensively analyse the improvement of mathematical lateral thinking ability of high school students as an outcome of quantum learning based on creative problem solving, both viewed as a whole and each level of initial mathematical ability (high, medium, and low), and gender (male and female). This study used a quasi-experimental method with a pretest-posttest control group design. The study population was high school students in the city of Bogor, while the sample was taken from four classes in a school. The data obtained through tests of lateral thinking skills and mathematical initial ability data, as well as the results of observations and interviews. The results showed that students who received quantum learning based on creative problem solving had a higher mathematical lateral thinking ability than students who received direct learning, whether as a whole and each level of initial mathematical ability or as every gender.

Keywords
mathematics, lateral thinking, quantum learning, creative problem solving

Topic
Mathematics Education

Link: https://ifory.id/abstract/FxPa7XHGTqfW

Corresponding Author
Yumiati Yumiati

Institutions
1. Universitas Terbuka, Indonesia
2. Universitas Bengkulu, Indonesia

Abstract
This study aims to improve the ability to understand monoid concepts through Problem Posing learning. The method used is a quasi-experiment. The research design used was pre-test post-test group design. The research sample was 32 undergraduate students of the Mathematics Education Study Program FKIP Universitas Bengkulu at the Algebra Abstract course of even semester 2018-2019 academic year. The instrument used were a 4 item test about the concept of monoid. Data were analyzed qualitatively and quantitatively. The results of the study are as follows: 1) an increase in the ability to understand the monoid concept of students by 0.67, including the medium category; 2) the achievement of the ability to understand the monoid concept is 74.75 in the high category. The results of this study have implications for the importance of the role of questions in learning mathematics.

Keywords
Monoid, Problem Posing

Topic
Mathematics Education

Link: https://ifory.id/abstract/pPjn62HVAadU

Corresponding Author
Masta Hutajulu

Institutions
1Pendidikan Matematika, Institut Keguruan dan Ilmu Pendidikan Siliwangi, Jl. Terusan Jenderal Sudirman, Cimahi 40526, Indonesia
*masthahutajulu[at]yahoo.com

Abstract
This study aims to examine the achievement and improvement of mathematical proficiency and disposition of vocational students using multi-representation approach. The method used in this study is a quasi-experimental method. The population in this study were all students of class XI in one of the vocational schools in the city of Cimahi, while the sample was chosen by two classes, 1 control class that used the usual approach, one class again, the experimental class using a multi-representation approach. The instruments used were in a set of mathematical proficiency and non-test in a set of a questionnaire to measure students mathematical dispositions. All data processing used SPSS. Based on the results of data processing, it was concluded that mathematical proficiency and mathematical disposition of vocational students whose learning using a multi-representation approach were better than the usual approach. Keywords: mathematical proficiency

Keywords
mathematical proficiency, mathematical disposition, multi-representation

Topic
Mathematics Education

Link: https://ifory.id/abstract/nJm6EVQkRZuz

Corresponding Author
Adang Effendi

Institutions
1Departemen Pendidikan Matematika, Universitas Galuh, Jl. R.E Martadinata No. 150 Ciamis 46274 Jawa Barat, Indonesia

*adangeffendi72[at]gmail.com

Abstract
This study aims to describe the importance of increasing mathematical higher order thinking abilities of high school students through creative problem solving and direct learning. This research is a quasi-experiment with the design of a non-equivalent control-group in a senior high school in Ciamis, Indonesia. The results showed that the comparison of the improvement in students mathematical higher-order thinking abilities through learning creative problem solving was better than students with direct learning. The advantage is that students who learn creative problem solving tend to express opinions openly so that many ideas emerge to choose effective solutions.

Keywords
mathematical higher order thinking abilities, creative problem solving

Topic
Mathematics Education

Link: https://ifory.id/abstract/yTFtxB29cdWN

Corresponding Author
rahmi fauzana

Institutions
Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia

Abstract
This study aims to determine the differences in the enhancement in mathematical literacy skills between students who get learning with Realistic Mathematics Education (RME) approach and students who get regular learning. This study was is a quasi-experimental with nonequivalent control group design. The population of this study were all eighth grade students of one of the MTs Negeri in Bandung in the 2018/2019 academic year. Sample of this research was two classes as experiment class amounted to 32 students and control class amounted to 32 students with using purposive sampling technique. The instrument used is a test of mathematical literacy skills. The results showed that there are differences in the enhancement of mathematical literacy skills between students who studied with Realistic Mathematics Education (RME) approach and students who studidusing regular learning.

Keywords
mathematical literacy, Realistic Mathematics Education

Topic
Mathematics Education

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

Corresponding Author
Nita Delima

Institutions
(a) Universitas Subang, Jl. RA Kartini Km 3 Subang
(b) Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi Bandung

Abstract
The learning process of mathematics in high school now shows that it has not been able to improve students mathematics self-concepts. This is indicated by the fact that high school mathematics self-concept students are still relatively low. Therefore, there needs to be an effort to improve these variables, considering that these variables are very important in supporting students academic success, especially in mathematics. This study discusses how the implementation of the CMI model in mathematics learning can improve high school mathematics self-concept. This research is a quasi-experimental study. Samples were taken purposively from the population of high school students in Subang, West Java, Indonesia. The instruments used in the study consisted of mathematics self-concept questionnaire and observation sheets. The CMI model is a learning model that accommodates three stages namely develop, solidify and practice. CMI provides many opportunities for students to play an active role in asking questions, explaining the answers to mathematical questions they get, and transferring the knowledge they have with their classmates. The activity will indirectly build the confidence side of students in doing mathematics. The results of the study indicate that the CMI model can improve high school mathematics self-concept.

Keywords
MSC; CMI

Topic
Mathematics Education

Link: https://ifory.id/abstract/dax2j7Ppz9yR

Corresponding Author
Desi Okta Marika

Institutions
Math Education Universotas Bengkulu

Abstract
The purpose of this study was to determine the effect of thematic approaches and cognitive styles on the ability to understand mathematics. This research is a quasi-experiment with a sample of Class X Students of SMA N 4 Rejang Lebong. This research instrument is a test of the ability to understand mathematics. The results of this study are that there is a linear influence of students cognitive style covariates on mathematical representation abilities; Student cognitive style, learning models and orientation of mathematics material together affect the ability of understanding mathematics; The ability to understand mathematics students who are taught with a scientific approach is higher than students who are taught with conventional after controlling the cognitive style of students. The ability of understanding mathematics in students who are learning thematically oriented is higher than students who learn not in thematic orientation after controlling.

Keywords
thematic, mathematical understanding.

Topic
Mathematics Education

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

Corresponding Author
M. AFRILIANTO -

Institutions
a) Pendidikan Matematika, Universitas Pendidikan Indonesia, Jalan Dr. Setiabudi 229, Bandung 40154, Indonesia, *muhammadafrilianto1[at]gmail.com
b) Pendidikan Matematika, Institut Keguruan dan Ilmu Pendidikan Siliwangi, Jalan Terusan Jenderal Sudirman, Cimahi 40526, Indonesia

Abstract
Mathematical problem posing ability is considered as a neccesity for students to support their learning achievement. Some students are good at mathematical problem posing ability, some others are not. To foster Mathematical problem posing in students it is required that an innovative learning model is applied. of so many innovative learning models, one that is considered appropriate to increase the mathematical problem posing of student is project-activity-cooperative learning-exercise learning model. This is an experimental study using pretest and posttest control groups design. The instrument used is test. The research was conducted in three regular classes of 5th semester students of mathematics education who involved in calculus course at IKIP Siliwangi, at a local university in Cimahi. A total of 123 students, comprises three classes A1, A2, and A3. A purposive sampling technique was used to collect data. Based on data analysis, it can be concluded that there exists a different in the improvement of student-s mathematical problem posing ability among those who received project-activity-cooperative learning-exercise learning model with geogebra (PACE-G), project-activity-cooperative learning-exercise learning model (PACE), and direct learning (PL).

Keywords
Mathematical Problem Posing Ability, Project-Activity-Cooperative Learning-Exercise Learning Model, Geogebra

Topic
Mathematics Education

Link: https://ifory.id/abstract/tmk2wEMCKHac