Students will engage in an exploration of how triangles can be used to figure out the sum of angles in a polygon. In Part A, they will first be guided towards identifying the relationship between the number of sides in a polygon and the number of triangles that make the polygon. In Part B, students, in a more open-ended task will look for the relationship that connects the number of sides in a polygon and the sum of angles of the polygon.
Math Concepts: Interior Angle Sum of Interior Angles in Polygon Sum of Angles in Triangle Polygon Names
MYP Related Concepts: generalization patterns space
MYP Key Concepts: form
MYP Global Context: Orientation in Space and Time