Effect of the Use of Virtual Reality (VR)-nased Geometry Virtual Lab Media with the Van Hiele Theory Approach to Student Learning Achievement at IVET University Semarang

The existence of technology, especially smartphones, which are now increasingly developing, must be addressed wisely. One technology that can be used as a learning medium is the Virtual Geometry Lab. This research aims to examine the effect of using virtual reality (VR)-based geometry lab media using the Van Hiele theory approach on student learning achievement at IVET University Semarang. This research is a continuation of the results of previous research which produced a valid Geometry Virtual Lab product. This research is an expansion test of the Virtual Geometry Lab Product at IVET University Semarang. This is a development research using the ADDIE stage model which has reached the implementation stage. The research design used is posttest only control design. Data were analyzed using descriptive statistics with simple regression analysis and independent sample t test using SPSS software. The research results show that using virtual lab media influences the learning achievement of IVET Semarang students by 80.3%, while 19.7% of learning achievement is influenced by other variables outside of the independent variables in this research. Confirmed by the t test, the average learning achievement of the experimental class was 82.35, while the average of the control class was 68.79. This means that the learning achievement of IVET Semarang experimental class students is better than the IVET Semarang control class.