Evaluating the Teaching Effectiveness of UA741-Based Op-Amp Configurations in Enhancing Student Learning: Experimental Results and Analysis.

Abstract: This report presents the results of research conducted at Auchi, Edo State, Nigeria, to evaluate the effectiveness of UA741-based op-amp configurations in enhancing student learning. The study utilized the instrumentation module developed by Jibunor et al. (2025) in their work titled "Design and Development of an LM741 Instrumentation Module for Enhancing the Teaching of Basic Analog Circuit Principles in Physics and Electrical Engineering" [International Journal of Research and Scientific Innovation (IJRSI), [https://rsisinternational.org/journals/ijrsi/articles/design-and-development-of-an-lm741-instrumentation-module-for-enhancing-the-teaching-of-basic-analog-circuit-principles-in-physics-and-electrical-engineering/]]. Traditional electronics education often struggles to connect theory with practical application, making it hard for students to understand op-amps in circuit design. "This study involved 40 second-year students from the Physics and Electrical Engineering programs, divided into two groups of 20. One group served as the experimental group, assessing the UA741 module through six configurations: voltage follower, inverting amplifier, non-inverting amplifier, summing amplifier, difference amplifier, and integrator, while the other group functioned as the control group. Knowledge tests were given at the end of the lessons, based on Bloom’s taxonomy, covering knowledge, comprehension, application, analysis, synthesis, and evaluation. Results showed that using the UA741 module significantly improved both the quantity and quality of student achievement compared to the traditional "chalk-and-talk" method. Data analysis focused on performance characteristics like voltage gain, waveform shapes, and input-output relationships, confirming expected behaviors. These findings highlight the effectiveness of hands-on experimentation in enhancing student understanding of electrical and electronic concepts, thus improving teaching effectiveness.