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Dialogic Teaching in STEM Education: Transforming Secondary School Learning in Emerging Economies.
Introduction. Dialogic teaching, the intentional use of sustained, purposeful classroom talk, positions dialogue not as idle chatter but as the medium through which knowledge is co-constructed. Robin Alexander (2008) conceptualised dialogic teaching as purposeful, cumulative and reciprocal interaction that “promotes thinking and learning”. Paulo Freire (1970) viewed dialogue as emancipatory praxis that humanises both learner…
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From Spectacle to Understanding: The Pedagogical Power of Teacher Demonstrations in Chemistry. Introduction Teacher demonstrations have long been at the heart of chemistry teaching, capturing attention, evoking curiosity, and bringing invisible processes to life. A teacher demonstration is a planned, teacher-led experiment designed to help students observe, interpret, and understand chemical phenomena that are otherwise…
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Welcome!This week, we focus on retrieval practice, a simple yet powerful strategy that boosts long-term learning. Instead of just rereading notes, actively recalling information strengthens memory and deepens understanding—especially in STEM subjects like chemistry. Why Retrieval Matters. Every time a student recalls information: Think of it as “exercise for the brain.” The more you retrieve,…
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