Penerapan Model Pembelajaran Kooperatif Pendekatan Stuktural Numbered Heads T…

This research wasbased on the students’mathematic achievement at class VIII.2 SMPN 3 Tambangunder the MinimumMastery Criteria with percentage of 30%, there are only 9 out of30 students who achieve the Minimum Mastery Criteriaon the main discussion about relevancy with equation of circle tangent and then the learning process still teacher center. This research is classroom action research. Thi…