Abstract
Low student mathematics learning outcomes and minimal use of technology-based media. The results of the national mathematics examination at the junior high school level in 2019 in NTB province before the COVID-19 pandemic hit an average of 38.76 out of a scale of 100. Mataram City itself gets an average of 45.18. This shows the low quality of education, especially the numeracy ability of students from the district to provincial levels in NTB. Student learning outcomes are influenced by the learning media used by teachers. So it is necessary to develop media that has high reusability and influences students' mathematics learning outcomes. This research method is development with the ADDIE model. The results of this study Based on the data and analysis, a conclusion can be drawn on the reusability of website-based geogebra learning media is as follows: the majority of respondents consider website-based geogebra media 58% fair enough, 21% feel good (Good), 11% very good (Excellent), 10% the best imaginable. This shows the diversity in people's perception of the quality of website-based geogebra media. Further analysis that web-based media has good potential in terms of integration of functions and supports a level of confidence in their use. However, there is a needed expansion in terms of ease of use.