Development of Model-Based Learning Devices Cooperative Type Student Teams Achievement Division (STAD) Assisted by Geogebra to Improve Abilities Mathematics Problem Solving of Class X Students Man 1 Deli Serdang

摘要

This study aims to produce a valid, practical, and effective Geogebra-assisted STAD model-based learning tool to improve students' mathematical problem solving abilities. This development research uses a 4D development model with the target target or research subject is student class X MAN 1 Deli Serdang. The data analysis technique used is quantitative and qualitative data analysis and t-test. The results of the study concluded that: (1) the learning tool based on the Geogebra-assisted STAD model that was developed was declared valid (feasible), practical and effective to be used in mathematics learning material on two-variable linear equation system in class X MAN 1 Deli Serdang.