Lesson overview:Building shapes from triangles (Part 1)
- In this lesson, we will learn how to arrange triangles to form polygons as part of an investigation into the internal angles of polygons. This represents part 1 of a two-part lesson.
- In this lesson, we will learn how to arrange triangles to form polygons as part of an investigation into the internal angles of polygons. This represents part 1 of a two-part lesson.
Angles in polygons:
- Interior angles in a triangle
- Categorising and defining polygons
- Building shapes from triangles (Part 1)
- Building shapes from triangles (Part 2)
- Polygons and triangles
- Generalising angles in polygons (Part 1)
- Generalising angles in polygons (Part 2)
- Finding missing angles in polygons
- Exterior angles
- Regular interior and exterior angles (and mean of irregular)
- Generalising and comparing generalisations
- Angle notation and problem solving