Lesson 3: Area of Triangles
Duration of Days: 3
Lesson Objective
- Students will be able to find the area of triangles
and show that a triangle is half of a parallelogram.
What are the properties of polygons, and how do they differ from other shapes like circles?
How can we find the area and perimeter of two-dimensional shapes, including irregular ones?
How does measurement help you solve problems in everyday life?
Congruent
6.G.A.1
- Using a model, show students various examples of how a parallelogram can be cut into two congruent triangles, each having half the area of the parallelogram. Move to teaching that the area of a triangle is 1/2 base x height.
DOK 1-3
paper models, geoboards or online manipulatives
- Classwork/Homework
- Formative Assessment
- Exit Tickets