Abstract
Prospective mathematics teachers must be equipped with problem solving skills because it has a very important place in the mathematics curriculum. The purpose of this research is to get an overview of improving the problem solving skills of prospective mathematics teachers by implementing GeoGebra on space geometry learning. The research was conducted in Study Program of Mathematics Education, Tidar University in the second semester students. This research uses quasi-experimental method, with nonequivalent control group pretest-posttest design using two groups, namely experimental group consisting of 36 students got GeoGebra-based space geometry learning and control group consisting of 35 students got conventional space geometry learning. Research instruments in the form of observation sheets and test instruments in the form of pretest and posttest to measure achievements of problem solving skills improvement. The data obtained is then processed and analyzed by calculating the percentage of learning implementation and calculating the average normalized gain score (N-Gain). The results showed that GeoGebra-based Space Geometry learning can improve problem solving skills. In the experimental group, problem solving skills were improved in high category, while in the control group the improvement of problem solving skills in moderate category.
Highlights
To become prospective mathematics teachers, students are required to be able to review the concepts that they have obtained during learning to their students in the school later
The study used two groups, one as an experimental group that received GeoGebra-based space geometry learning and another group as a control group that got space geometry learning without using GeoGebra
The learning process was performed in both groups through the following stages: 1) pretest, 2) the provision of conventional treatment for the control group, and the learning to use GeoGebra for the experimental group, and 3) posttest
Summary
To become prospective mathematics teachers, students are required to be able to review the concepts that they have obtained during learning to their students in the school later. Prospective mathematics teachers should be provided with problem solving skills which is one of the must-have skills. This is because problem solving skills can make us think logically, critically, and creatively. The problem solving skills steps of one of them popularized by Polya (2004) consists of four steps, namely: 1) understanding the problem, 2) devising a plan, 3) implementing the plan, and (4) looking back at the original answer. The National Council of Teachers of Mathematics explained that mathematics problem solving skills need to be developed in mathematics learning (NCTM, 2000). Students should be allowed to implement and adopt the right strategies to solve problems. Each lesson must be designed to provide students with problem solving skills
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