About This Lesson
This lesson combines both a constructivist and direct instruction approach in supporting students in developing a solid understanding of area of any triangle. The constructivist portion occurs while students are working cooperatively with a partner in attempting to discover the area of several triangles embedded on grid paper. Students may use their findings from the previous two lessons in which they decomposed and composed shapes to find the area. The direct instruction portion of the lesson occurs when the teacher introduces the formula for area of a triangle. CCSS: 6.G.1
Lots of excellent examples and scaffolding to support learning