Abstract
This research was conducted to develop a learning module based on a contextual approach on flat building material for grade IV elementary school students. The type of research is Research and Development (R & D) with the ADDIE development model consisting of 5 stages, namely (1) Analysis; (2) Design; (3) Development; (4) Implementation; and (5) Evaluation. The results of the study were (1) Contextual based flat building material content related the material to students' daily lives. Modules are designed using attractive colors for grade IV students and accompanied by pictures of concrete objects to explain flat material that suits students' real lives. (3) Contextual module validation carried out by experts shows an average overall aspect score of 0.890 with a very valid category. (4) Student response to contextual-based learning modules with the quality of the modules produced is categorized as very feasible through small group trials with a feasibility percentage of 86.25% and large group trials with a feasibility percentage of 89.67%. So it can be concluded that the development of modules in terms of design: format, and color are adjusted, in terms of material is neater, there are images, to appropriate fonts. Then, in terms of language, the module uses standard and clear language. So that the module is said to be feasible, which is valid and practical to use.