Developing an Energy Band Gap Model and its Usability from the perspective of Physics Undergraduate Students

This research aimed to develop an energy band gap model and determine its usability from the perspective of physics undergraduates from one of the public universities in Malaysia. This research design used is developmental research using the ADDIE model. Twenty eight respondents were selected using the simple random sampling technique from seventh semester physics students. The instruments used were validity form and questionnaires adapted from the Technology Acceptance Model (TAM). The validity data were analysed using the content validity index while the usability data were analysed descriptively using mean and standard deviation. The results showed that the energy gap model has a high value of CVI (1.00). In addition, the usability by mean and standard deviation are 3.75 and 0.45 respectively. In conclusion, the research has been successfully developed a model, and proven that it is valid and can be used in teaching and learning process.