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Classifying Triangles by Sides and Angles: The ... - Montessori Training

Montessori Protractor. Math journals and pencils. Presentation • Most Montessori teachers present this concept in Year 2 and review it in Year 3. • This activity should be presented over several days. • Invite a student to learn about the seven types of triangles at a table or mat set up with the material. PART 1: REVIEWING TRIANGLES’