Generative learning model to improve mathematics problem solving skills on polyhedron

Abstract

The purpose of this study was to develop valid, practical and effective generative learning instruments to improve the mathematics problem solving skills. This research was development research using Thiagarajan, Semmel & Semmel’s 4D model consisting of designing, defining, developing, and disseminating stages. However, this study was limited to the validation stage. The instruments developed were lesson plan, student worksheet, and mathematics problem solving test. Data collection techniques used were questionnaires and tests. The participants are 24 year 8students in one of secondary school in Pidie, Aceh, Indonesia. The validity data of learning instruments were obtained based on expert validation while the validity data of the test were derived based on students’ answers. The results of this study showed that the learning instruments developed was valid, with the score for (a) lesson plan was 4.54 (excellent category), (b) student worksheet was 4.32 (good category), and (c) the test of mathematics problem solving skills was 4.4 (good category). Furthermore, the developed test of mathematics problems solving skills showed that the average results of validity and reliability were categorized into the high criteria, difficulty index into medium criteria and differentiation index into good criteria.