DEVELOPMENT OF LAPS-HEURISTIC-BASED MATHEMATICS TEACHING MATERIALS TO IMPROVE STUDENTS’ MATHEMATICAL PROBLEM-SOLVING ABILITY IN THE APPLICATION OF BLENDED LEARNING

Mirna Kusumawati, Jailani Jailani

Abstract


This research aims to produce a mathematical teaching material based on LAPS-Heuristics to improve students' mathematical problem solving abilities that are valid, practical, and effective in the application of blended learning. The teaching materials developed to consist of the Learning Implementation Plan and Student Worksheets. This development research uses the ADDIE model which consists of the analysis, design, development, implementation, and evaluation stages. The subjects of this study were 36 students of class X Science Major, Senior High School, in Bukittinggi, Indonesia. Product validity was measured using an expert validation sheet instrument. The practicality of the product is measured from the results of teacher and student assessments, as well as learning implementation observation sheets. The effectiveness of the product is measured from the learning outcomes test which includes a test of mathematical problem-solving ability on the sine and cosine rules of class X SMA. Then, the data analysis was carried out descriptively. The results showed that the teaching materials in the form of lesson plans and worksheets based on LAPS-Heuristics to improve students' mathematical problem-solving abilities in the application of blended learning developed were valid, practical, and effective.


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DOI: https://doi.org/10.21831/jpm.v9i1.19025

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