Development of LKPD Based on ExCluSiVE Learning Model to Improve Creative Thinking Skills in Mathematics Learning in Grade IV Elementary School

Abstract

This study aims to develop LKPD based on the ExCluSiVE learning model that is feasible, practical and effective to improve creative thinking skills in mathematics subjects in grade IV elementary schools. The type of research and development used refers to the theory of Research and Development (R&D) Borg and Gall. The population in this study was 36 students in grade IV UPTD SD Negeri 5 Metro Timur. The samples in this study were class IVA as an experimental class and class IVB as a control class. Data collection techniques in this study are observation, interviews, documentation, and questionnaires. Data analysis techniques use qualitative descriptive analysis with data review and quantitative descriptive analysis using expert data, product practicality, validity, reliability, difficulty level, N-gain, normality, homogeneity, and effectiveness. The results showed an average expert test of 89.78% with feasible criteria, an average practicality test of 87.50% with very practical criteria; validity test V Aiken LKPD for material of 0.66, media of 0.67, language of 0.65 with valid criteria; reliability test of Cronbach’s Alpha material 0.817, medium 0.720, language 0.796 with high category; the average increase in students’ creative thinking ability before and after the study was 26.20%; the average N-Gain value is 0.83 in the high category; Test the effectiveness of independent sample t-test: 1) tCalculate value is 5.469 and tTable (df-34, α=5%) is 1.690, then tCalculate ≥ tTable, α=5%, 2) Sig. (2-tailed) value is 0.000 < 0.05. The results of the study can be concluded LKPD based on the ExCluSiVE learning model to improve creative thinking skills in mathematics learning in grade IV SD Negeri 5 Metro Timur on feasible, practical and effective flat building materials.