Pengembangan Perangkat Pembelajaran Berbasis Problem Solving Untuk Memfasilit…

The background of this research is due to the low Algebraic Thinking Ability (KBA) of students. This study aims to produce valid and practical mathematics learning tools to facilitate students' KBA on the material of the Two-Variable Linear Equation System in class VIII SMP / MTs Pekanbaru. This learning device development research uses ADDIE model development research (Analysis, Design, Devel…