Abstract: This research is conducted based on the reality that teaching learning subject of Plan Analytic Geometry done by the lectures does not indicate the students development creativity. The aim of this study is to ...

This research and development aimed to set a model of mathematic learning in Junior High School using aptitude treatment interaction (ATI) approach in portfolio base. Specifically the aim in details are (1) to describe ...

This study aims at knowing 1) in the contribution learning strategy for achievement; 2) contribution communication math for achievement; 4) the interaction learning strategy shown from the communication math for ...