Authors : Tuesday Naboth

Volume/Issue : Volume 11 - 2026, Issue 5 - May

Google Scholar : https://tinyurl.com/mr3r6eb5

Scribd : https://tinyurl.com/39zu444c

DOI : https://doi.org/10.38124/ijisrt/26May1254

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : This research examined the influence of using instructional materials, particularly visual aids, on students’ understanding and performance in Biology among private secondary schools in Ibanda District of Uganda. A descriptive mixed-methods research design was adopted involving Head Teachers, Biology Teachers, laboratory Technicians, and Learners. A sample size of 266 participants was obtained from a target population of 520. Information was gathered through questionnaires, interviews, and document analysis. Quantitative information was examined using descriptive statistics and regression techniques, whereas qualitative responses were interpreted using thematic analysis.The results revealed that the use of visual instructional aids positively influences students’ comprehension and academic performance in Biology. Regression results revealed that visual aids significantly predict students’ performance. The study concludes that consistent and effective use of instructional materials enhances students’ understanding and performance in Biology. Recommendations include increasing the availability and use of visual aids, continuous teacher training, and improving laboratory resource management. Future research should explore the integration of digital instructional tools and their long-term effects on student outcomes.

Keywords : Instructional Materials, Visual Aids, Academic Performance, Biology, Private Secondary Schools, Ibanda District.

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