This research aims to construct a mathematics learning model design that is constructivistic, contextual and collaborative for trigonometry topic in the Grade1 High Scholl which is tried out in the classroom. This research used classroom actions reseach method and did in the Pangudi Luhur Van Lith High School Muntilan Central Java.
The Early Scenario Learning Design which is constructed needs evaluated and repaired from management learning aspect in class, in order to become the Final Learning Scenario. The teacher still needs to pay attention to orientation activity eventhough the learners are ready to rush in to the exploration activity, control exploration and negotiation activity in order to did with efficient, and the negosiation activity should be still paid attention in order to could be done. The student seems ready to to learning activity with change method, can appear some problem solving strategy for the given problems, present the result of working bravely and discuss them, and did negotiation.
