The effectivity of corrective formative evaluation on ability to understand geometric concepts

Abstract

Abstract The aim of this study are to know the effectiveness of the corrective formative evaluation on the ability to understand geometric concepts of the students. This research is a quasi-experimental study with sample thirty two students. The data was analysed by using covariance analysis with students’ initial ability as covariate. The results of the study show corrective formative evaluation give effective contribution on the ability to understand geometric concepts with a contribution 44.5%. This study also indicates there is a significant effect of students’ initial ability as covariate on the ability to understand geometric concepts 35.2%. The average the ability to understand geometric concepts of the students taught with corrective formative evaluations is higher than conventional classes.