Online Geoboard Media in Mathematics Learning: Understanding the Concept of Two-Dimentional Figure

Learning is a process of adding insight, improving skills, and changing attitudes for the better. In introducing the shape of the room, the teacher finds it difficult to embed the concept, by using the online media geoboard to make it easier to understand the concept of flat shape. This study aims to describe how the influence of using Geoboard online in improving students' understanding of mathematical concepts in the learning of Bangun Datar in the fourth grade of elementary school. Type of research This type of research uses the Mix method, namely data collection using qualitative and quantitative. Sampling using purposive sampling with a total of 28 students and research design using Explanatory Sequential Design. This study involves several variables as research categories, namely student responses and concept understanding. Data analysis used descriptive and inferential statistics. The result is that the response variable and concept understanding have a significant effect, with a value of sig