Objectives: to facilitate pupils to master such concepts as «circle», «radius», «diameter», «circle length», and to facilitate the formulas for calculation of circuit; to form in pupils abilities and skills to find the circuit, diameter, radius, to develop thinking of the pupils, mathematics language, motivated sphere of a person, research abilities, learning, social (cooperation in a team в ) and communicative competences.
Type of the lesson: assimilation of new knowledge.
Equipment: a presentation, drawing instruments, threads, 4 things in a circle form, the tables for the experiment, text books (Ister О.С.)
