Tatiana N. Lapshova 

Geometry lesson packet “Inscribed circle”

Abstract. The article presents Geometry lesson packet, which is based on the technology of the modern Japanese school — origamics. Using geometric origami, students find a solution to a problem situation that arose during the lesson. The teacher offers the student a research problem instead of a ready-made theorem. This approach allows to change the usual technique of “formulation-argument” and to achieve the result in the most effective way.

Keywords: geometric origami, research problem, problem situation.