Validity of Interactive learning PowerPoint Media based on Guided Inquiry on Thermochemistry Topic for Class XI SMA/MA

Abstract

Thermochemistry is one of the chemistry learning materials that are difficult for students to understand. It requires three level of chemical representation in the learning process, which is assisted by the presentation of interactive PowerPoint media. This study aims to produce an interactive PowerPoint learning media based on guided inquiry suitable for learning and can determine the level of validity of the interactive PowerPoint learning media. The type of research used is Research and Development (R&D) with a 4D development model. The research is limited to the Develop stage. The reseach instrument used was a validated questionnaire processed using the Aiken,s V formula. Two chemistry lecturers and tree high scholl chemistry teachers conducted the PowerPoint interactive learning media validity test. In the validity test data analysis, the validity result value is 0,86 with a good category.