Learning outcomes in Christian Religious Education (CRE) are attributed to the teaching and learning approaches utilized by teachers. In Kenya, conventional methods of teaching are prevalent in ...classrooms, as teachers often prefer methods that alleviate their workload. Nevertheless, the implementation of learner-centred methods such as constructive simulation enhances learning outcomes. Therefore, this research evaluated the dissimilarity in learning outcomes of CRE learners instructed by constructive simulation, and those instructed with a conventional approach. The research employed a quasi-experimental study with groups under treatment and control, incorporating a pre-test and post-test approach. In total, 90 form two CRE learners from two sub-county secondary schools were purposively selected for the research. Data were collected using the Learner Attainment test in CRE as the assessment tool. The research utilized correlation analysis to establish the similarity scores between the pre-test and post-test assessments. Additionally, the t-test statistical model was employed to test the effectiveness of the two teaching methods. Results revealed a strong positive connection between the two assessment tests of learners taught using constructive simulation (r = 00.0510, p < 0.01) and conventional method (r ═ 0.673, p < 0.01). Notably, constructive simulation (t(49) = − 9.76, n = 50, p < 0.05) significantly outperformed the conventional method of teaching (t(39) = 2.700, n = 40, p < 0.324). These findings implied that constructive simulation was more effective in enhancing learning outcomes as opposed to the conventional method of teaching. The results suggest that when designing curricula and formulating educational policies, educators and policymakers should incorporate constructive simulation as a learner-centred method.
