Sugi Hartono
The present study was conducted to compare the effectiveness of Geometer's Sketchpad (GSP) learning in two-dimensional shapes. This study was designed as a quasi-experiment which involved 60 students of class VII in SMP Negeri 1 Ngoro, Mojokerto, Indonesia. The sample in study was divided into two groups, mainly 30 students are the experiment class (GSP) and 30 students are the control class (conventional learning). There were three instruments used in this study namely, students' responses, and pretest-posttests. The data were analyzed using analysis of covariance (ANCOVA). T-test showed that the effectiveness of student learning outcomes in GSP learning is higher than those in conventional learning. Based on the results of the student learning outcomes indicated that students in the experimental group outperformed those in the control group. In addition, a survey instrument was used to elicit students' perception on the use of GSP. Analysis of the questionnaire responses indicated a positive overall perception of using GSP in learning about two-dimensional shapes. Thus, it can be concluded that GSP learning was effective in two dimensional-shapes learning. © 2020 City University of New York. All right reserved.
Mathematics Education Department, Universitas Negeri Surabaya, Indonesia
