Abstract

Some of the past studies that compared the application of computer simulations with traditional instruction seem to indicate that traditional instruction can be successfully enhanced by using computer simulations. In this study the author examined the effectiveness of computer simulated experiments in enhancing students’ performance in calorimetry - an aspect of secondary school physics and chemistry. There were three groups viz: Computer simulated experiments only (CSE), computer simulated experiments + Hands on (CSE+HoE) and Hands on only (HoE only). The CSE only used computer simulated experiments to conduct experiments in calorimetry, the CSE+HoE used both computer simulated experiments and Hands on real instruments to conduct experiments in calorimetry, while HoE only used real life instruments to conduct experiments in calorimetry. Students in CSE+HoE had the highest mean score in physics achievement test (PAT) while their colleagues in both CSE only and HoE only had nearly same mean score in PAT. Results showed that an effective way of using simulations is as a preparatory activity for real laboratory activities. Positive effects are found for the comprehension of the laboratory task as well as for practical laboratory skills during the real laboratory activity. Schools should be encouraged to complement hands on experiment with computer simulated experiments.