DEVELOPMENT OF PROBLEM-'BASED LEARNING STUDENT WORKSHEET JN CLASS III MATHEMATICS LEARNING SON 47 KORONG GADANG

Abstrak

This study aims to produce teaching materials in the form of worksheets for learning mathematics on fractions using the Prob]em Based Leaming mode] for cJass JU SON 47 Korong Gadang. The type of research used is research and development (Research and Development) with a 4-D type research model, namely define, design, develop, and disseminate which is limited to 3-D. In this study, it is only limited to the develop stage, namely t� the practicality stage. The research instrument includes validation sheets and practicality sheets. In the validation process, LKPD was validated by 3 expert lecturers including 1 material expert, 1 language expert, and I design expert. In the practicality process, LKPD was tested on I teacher and 25 students. Based on the LKPD that has been developed, LKPD validation carried out from the material aspect obtained a validity percentage of 95.38% with very valid criteria, from the language aspect 96% with very valid criteria and from the design aspect obtained 72.7% with quite valid criteria. Judging from the average validity of LKPD based on Problem Based Learning on fractional material, it meets the valid criteria with a validity percentage of 88%. The practicality test by the teacher obtained a percentage of 98.8% with very practical criteria and the students' practicality results obtained with a practicality percentage of 83.8% with practical criteria. Based on the results of the study, it can be concluded that the LKPD based on Problem Based Leaming meets valid criteria and is very practical to use as one of the teaching materials in learning mathematics, especially for third grade students in elementary schools.