WHIRL O TRON :VISUALIZING BOHR'S ATOMIC MODEL THROUGH INTERACTIVE LEARNING

The curriculum specification of Chemistry for the matriculation science requires students to describe the Bohr atomic postulate with related calculations. Despite this, the topic remains critical as it is a compulsory question in final examinations, contributing 10 marks. Students struggle to conceptualize the movement of electrons between energy levels and to relate this with the corresponding energy, frequency, and wavelength calculations. Students’ inability to grasp the Bohr postulates frequently leads to difficulties in solving related numerical problems accurately. This study focused on assisting students in describing (understanding, explaining, recall) and answering questions related to Bohr’s atomic postulates through the use of interactive learning tools. The intervention introduced was the Whirl-O-Tron as teaching aids (kit and model) and Canva AI digital simulations as interactive learning tools to help students visualize electron transitions and solve the calculation involved. The study was conducted with 20 students from S3K3T1 class. Data analysis showed, students with marks greater than 4/10 in the pre-test is 15% and 90% were achieved in the post-test. This gives increase significant in mean of 2.45 (pre-test) to 7.90 (post-test). This highly increased mean and percentage demonstrate substantial improvement in students’ conceptual understanding and their ability to apply Bohr’s atomic postulates effectively. Survey showed 100% students agreed that the Whirl-O-Tron helped them visualize, memorize, and understand the concepts of Bohr’s postulate more easily. This innovation not only improves students’ mastery of a compulsory examination topic but also promotes active learning and engagement. All students agreed that the Whirl-O-Tron should be introduced to other matriculation colleagues, foundation, form 6 and diploma students. Overall, these tools significantly improved students’ mastery, with strong agreement on their wider usefulness. The interactive tool effectively transforms the Bohr atomic model from an abstract theory into a concrete and engaging learning experience and contributing to better examination outcomes.

Keywords: Bohr atomic postulate, describe, visualize, electron transition, interactive

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TRC159: WHIRL O TRON :VISUALIZING BOHR'S ATOMIC MODEL THROUGH INTERACTIVE LEARNING

ICAR25 | Track 3: Advances In Humanities, Education, Teaching, Learning And Arts