Implementation of Ethnomathematics in Ancient Buildings in the Gresik Packaging Village Area Using Group Investigation (GI) Type Cooperative Methods to Improve Student Communication on Building Spatial Materials

Abstract

The purpose of this research is to improve students' mathematical communication using the Cooperative Group Investigation (GI) learning method. The instruments used in the research were assessment questionnaire sheets and questionnaire sheets in the form of Student Worksheets (LKPD) given by the teacher to students. the results obtained, including: a. Mathematical communication skills between students can be increased b. students can understand the material build space.