Abstract
The study examined the effects of Improvised Instructional Material Enhanced Biology Achievement among Secondary School Students in Lapai, Niger State. Quasi-experimental design which involved pretest, posttest, experimental and control group. A total of eight five (85) Senior Secondary two (SSII) students randomly selected from two sampled schools formed the sample size of the study. The instrument used for data collection was a researchers’ designed Biology Achievement Test (BAT). The instrument was validated, and pilot tested and yielded a reliability coefficient of 0.75. Two research questions were raised, and two corresponding null hypotheses were formulated to guide the study, the null hypotheses were tested at 0.05 level of significant. The result of the study showed among others a significant difference in achievement score of the experimental and control groups in favor of the experimental group. The finding also showed that both male and female students’ achievements were enhanced equally. It was recommended among others that Biology teachers should be encouraged to improvise instructional materials for effective teaching and learning of Biology.
 
Highlights
Success or failure of every nation lies on the level of educational advancement of her citizenry
Ho1: There is no significant difference in the mean achievement score of Biology students taught the concept of Mitosis with improvised instructional material and those taught with conventional instructional method
Ho2: There is no significant difference in the mean achievement score of Biology students taught the concept of Mitosis with improvised instructional material and those taught with conventional instructional method based on gender
Summary
Success or failure of every nation lies on the level of educational advancement of her citizenry. This implies that for any nation to attain and sustain national development, a well-planned, and implemented educational policy must be given proper attention by the government of that nation. Government must see education especially science and technology as an essential tool for her national development. According to Umoru (2016), knowledge of science is believed to be of paramount importance as it explains the structure and functions of living things in our environment and how to improve on our way of living. Science comprises of basic subjects like Chemistry, Physics, Mathematics and Biology
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