GODWIN GEMMA APAV
Department of Mathematics,
College of Education, Katsina-Ala.
e-mail: [email protected]
N.K.S.T. Secondary School,
This study was a Quasi-experimental research aimed at determining the effect of instructional materials in teaching probability at senior secondary school two in Katsina-Ala township secondary schools. It was a randomized pre-test post-test control group design in which four mixed-sex secondary schools were purposively selected for study. A sample size of 40 students was randomly selected from stream B of SS 2 in each school sampled. The sample comprised 20 male and 20 female students. Data for the study was collected using Mathematics Achievement Test (MAT) and instructional material for probability designed for the study. The ten-item test instrument was pilot tested and the coefficient of reliability obtained was 0.7. Mean achievement (), standard deviation and variance were used to answer the research questions and t-test was used to test the hypotheses at 0.05significance level. The findings were that instructional materials improve students’ achievement in probability and that achievement in probability was not sex-biased. The researchers therefore recommended regular organization of workshops to update mathematics teachers’ skills in the use of instructional materials to help improve students’ performance in mathematics.