Table 1. Summary of Learning Device Validation Results

From

Development of Realistic Mathematics Education-Based Learning Devices to Improve Mathematical Problem Solving Skills of SMP Negeri 1 Medan Students

Else Frine Tamba, Syafari, Pargaulan Siagian, Meytri Laurence Sihotang

American Journal of Educational Research. 2019, 7(1), 1-5 doi:10.12691/education-7-1-1