The development of online interactive learning media by using google classroom assisted by geogebra software on the quadratic function material

Technological developments are currently entering the industrial revolution 4.0 where everything is digital based. Learning media are tools used by educators in carrying out learning activities. One of the learning media that can be applied in learning mathematics is GeoGebra software. However, the GeoGebra software does not interact between educators and students, so we need a Google Classroom to improve interactive learning that can be combined with GeoGebra Online. The process of developing interactive online learning media using Google Classroom were assisted by GeoGebra software on quadratic function material used the Thiagarajan development model which consisted of four stages, namely define, design, development and dissemination. The results of learning media validation fulfilled the validity criteria with a correlation coefficient based on the validation sheet of 0.92 which is included in the valid category with a very high interpretation. Practical criteria with a percentage of the average value of the user response questionnaire based on a user response questionnaire of 91.75% which is included in the practical category with a good percentage. The effectiveness criteria with the percentage of learning outcomes based on the learning outcomes test was 82.61% which is included in the effective category with a very good percentage. The development of instructional media tested at SMA Muhammadiyah 3 Jember has fulfilled three criteria, namely valid, practical and effective.