EFFECT OF GUIDED DISCOVERY MODEL WITH SELF-EXPLANATION LEARNING STRATEGY TOWARD STUDENTS' ACHIEVEMENT ON SOLID STATE PHYSICS

This study aimed to reveal the influence of the guided discovery model with self-explanation learning strategy toward improvement of students' achievement on solid state physics of the crystal and dynamic of lattice structures. The study used quasi-experimental with Pre- and Posttest Design. The result showed that the guided discovery model with self-explanation learning strategy can improve students' achievement. Experiment class attained the normalized everage gain score of 0.467 (medium category), while control class attained the normalized everage gain score of 0.385 (medium category). Experiment class students have higher achievement significantly than control class. This research has effect size 0.47 in typical category. However, experiment class students gave lower positive response than control class for learning process. (C) 2015 Jurusan Fisika FMIPA UNNES Semarang