Development of Website Media Based on Google Sites to Improve Students’ Conceptual Understanding on Dynamic Fluid Materials

This research aims to produce a website media based on Google Sites to improve students' conceptual understanding on dynamic fluid materials. The research method used is Research and Development (RD) using the ADDIE development model. The feasibility of teaching materials is measured using media expert validation sheets analyzed using Aiken validity. The validation results show that the aspects assessed, including software engineering, visual communication, substance, and language, are declared completely valid. The increase in conceptual understanding can be seen from the pre-test and post-test results which are analyzed using the normalized average gain (N-Gain). The analysis results showed that the average N-Gain was 0.44, which is included in the medium criteria. The results of the student response questionnaire show that the media developed as a whole is in very good criteria in terms of website use, website appearance, writing and grammar, understanding of the material, and interest.