Penelitian
PENGEMBANGAN PERANGKAT PEMBELAJARAN MATEMATIKA DENGAN METODE PROBLEM SOLVING BERBANTUAN MS. EXCEL PADA N{ATER.I SOLUSI SISTEM PERSAMAAN LINEAR
The purposes of this research are (1) to outcome mathematic learning devices by using problem solving method with Ms. Excel aid on material solution system of linear equations, (2) to describe the result of instrument using, (3) to measure the effectiveness of problem solving method with Ms. Excel aid. This research used Plomp development model that consist of some phases (1) investigation, (2)
design, (3) realization/construction, (4) test evaluation, and revision, and (5) implementation. And the kinds of mathematic learning devices that are developed are syllabus, lesson plarq and module. Leaming device is validated by experts, tested the practicality, and tested the effectiveness of problem solving method in Ms. Excel aid on material solution system of linear equations based on Plomp
cleveloprfrent model. The-subject of the research are the sixth semester student of Tegal Pancasakti University that contain 4 classes. The researcher used cluster sampling technique and chose YI B class as an experimental class and VI D class as a control class. The variables in this research is problem solving skill. The research data collected from: (1) documentation sheet; (2) observation sheet; (3) questionnaire; and (a) the test. The data processed by one sample t-test. The result of research showed that the developed leaming devices fulfills as a good device criterion because: (1) expert validity and revising process get validator scoring average 3,50 and high score a; Q) the result of lecturer observation get average 3,04 and high score 4 with a good students response; (3) learning effectiveness showed that test average score (72,80) is higher than KKM (70).
Key Word: Developing Learning Instrumen! Problem Solving Method, and
Solution System of Linear Equations.
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