Effectiveness of Instructional Materials in Teaching Mathematics

Abstract

The main objective of this study is to explore the “Effectiveness of Instructional Materials in Teaching Mathematics”. The design of the study adopted experimental design involving with pre-test, post-test, non-equivalent experimental. The study was conducted in one of the public school in Darchula district. To achieve the objectives the researcher selects 50 students of grade VIII. The research used random sampling method to select the respondents. Tools for data collection were Achievement test and interview guideline. The experimental and control groups were taught by the researcher on the topic of Geometry Line and Angle, Triangle of grade VIII with and without using instructional materials. Pre-test was administered before the experiment start. The experiment runs for the duration of 15 days. After 15 days post-test was administrated on the both groups and the mean scores was calculated. The results were drawn on the basis of t-test at 0.05 level of significance. Finally, the researcher concluded that the uses of instructional materials had greatest effect on achievement of the students rather than without using instructional materials. These findings show that students in experimental group scored higher marks than students in control group where instructional materials were not applied. Mathematical achievement of basic level at grade VIII significantly depends on the use of instructional materials. When instructional materials are used, the usage of instructional materials has an added advantage on the mathematics achievement level of the lower secondary level students. So, teaching Geometry by using different instructional materials score higher achievement than teaching without using instructional materials.