The development of geogebra web-based interactive media using cybernetix boards with a Project Based Learning (PjBL) approach is a process of developing interactive media that can display mathematical concepts needed by students and can combine images, videos, and worksheets in one geogebra web page and display on a web page. cybernetix board that supports media for students to use together. The purpose of this research is to produce interactive learning media and to know the validity of the resulting product. The method used in this research is a research and development method, the design used in the development of this interactive multimedia is a 5-step design model of Borg and Gall.
The results of the validation of learning media products from material experts obtained a percentage score of 97.5% with a valid predicate. The results of the validation of media design experts obtained a score of 90% with a valid predicate. The validation of learning experts obtained a percentage score of 97.5% with a valid predicate. As for the results of the assessment research, the percentage score according to the Likert scale 4 table is above 80% - 100%, which means it is in very good qualification. So that the assessment of web-based interactive learning media with a Project Based Learning (PjBL) approach on the material of Constructing Flat Sided Space with the use of geogebra web and cybernetix boards for class VIII E students of SMP Negeri 5 Karangploso according to the percentage of assessments of three validators with three categories of media is able to become media learning support and stated very well
