Development of Mathematic Learning Devices using Discovery Learning Models with Riau Cultural Context to Improve Students 'Mathematic Problems Understanding and Solving Ability

This research was motivated by the low Mathematical Comprehension Ability (KPM) and Problem Solving (KPMM) of students absence learning tools that can properly solve problem KPM KPMM. The products is produced from this are syllabus, lesson plans, LKPD using discovery models with context Riau culture to improve students' development model used Borg Gall model. validity instrument in form a validation sheet for student worksheet. Practicality response questionnaire. data collection technique carried out validating devices distributing questionnaires students. analysis practicality. average syllabus 3.7; RPP, namely 3.54; 3.51 each category very valid. questionnaire initial field trial 88.57 practical category. developed have been valid