DEVELOPMENT OF TEACHING MATERIALS BASED ON GUIDED DISCOVERY LEARNING METHODS TO INCREASE MATHEMATICAL PROBLEM SOLVING OF HIGH SCHOOL STUDENTS
Rina Ananta Sumawardani Sitepu (a*), Pergaulan Siagian (b), Yulita Moliq Rangkuti (b)

a) Faculty of Magister Mathematical Education, State University of Medan, Jl. Willem Iskandar, Medan, North Sumatera, Indonesia
*sitepusumawardani[at]gmail.com
b) Faculty of Magister Mathematical Education, State University of Medan, Jl. Willem Iskandar, Medan, North Sumatera, Indonesia

Abstract

The aim of this study is to develop a product of teaching material based on guided discovery learning methods that meet valid, effective and practical criteria. The teaching material developed that is: student book, lesson plan, and workksheet of student for improve the ability of mathematical problem solving on the topic of Systems of Linear Equation in Three Variables [SLETV] for the tenth grade of High School. The type of research used is development research using the development of dick and carey models. Where the stages of this study consist of 10 stages. Try out conducted at first tenth grade science and social study as much 26 people in SMA Palapa Binjai. The results of this study indicate that: (1) The validity of teaching material of according to the expert team is valid; (2) Teaching material meet the practical criterion, that is teaching material are implemented very well, students give a positive response to teaching material, and teachers respond well to teaching material; (3) Teaching material meet the effective criterion that is complete of klasikal reach 96.15%, the ability of the teacher to manage learning obtained an average of 4.24 good categories and the learning time is not much different from the usual learning time; and (4) There is an increase the ability af mathematical problem solving using teaching materials based on guided discovery learning that is equal to 13.07 points from trial I to trial II. In addition, for the four indicators the ability of problem solving also increased, which were 5.38 points, 13.06 points, 18.75 points, and 22.84 points.

Keywords: Teaching materials; Guided discovery learning; Mathematical problems solving.

Topic: Curriculum, Research and Development

Link: https://ifory.id/abstract-plain/GKYgF7HVmNzB

Web Format | Corresponding Author (Rina Ananta Sumawardani Sitepu)