DEVELOPING MEDIA OF MATHEMATICS LEARNING BASED PROBLEM BASED LEARNING TO LEARN LINE AND ANGLE FOR 7TH JUNIOR HIGH SCHOOL

Abstract

This research was about development research that had purpose to make product and describe
the quality of product that must fulfill aspect of validity, practicality, and effectiveness. The product
consisted of student worksheet and visual aid (frame of line and angel) based on Problem Based
Learning approach to learn mathematics material about line and angle especially in basic competence
3.13 and 4.13 for 7th grade of junior high school.
This development research used Plomp methods with 5 phases such as phase of preliminary
investigation, phase of design, phase of realization or construction, phase of test, evaluation, and
revision, and phase of implementation. Subject of this research was 32 students of 7th grade of junior
high school 1 Mlati with 90,62% of students passed school grade value, it meaned learning objectives
were achieved.
The result of this development research were: (1) product was valid to help students learn
about line and angle, basic competence 3.13 and 4.13; (2) product was practise to help teacher and
students in learning process; (3) product was effective with achieved of learning objectives. This
product was valid, practice, and effective so it could be implemented in learning process.
Key words: line and angle, worksheet and visual aid (frame of line and angle), Problem Based
Learning, Plomp methods.