Let’s look at tiling patterns and think about area.

Let’s create shapes and find their areas.

Let’s decompose and rearrange shapes to find their areas.

Let’s investigate the characteristics and area of parallelograms.

Let’s investigate the area of parallelograms some more.

Let's practice finding the area of parallelograms.

Let’s compare parallelograms and triangles.

Let’s use what we know about parallelograms to find the area of triangles.

Let’s write and use a formula to find the area of a triangle.

Let’s use different base-height pairs to find the area of a triangle.

Let’s investigate polygons and their areas.

Let’s cover the surfaces of some three-dimensional objects.

Let’s investigate polyhedra.

Let’s use nets to find the surface area of polyhedra.

Let’s draw nets and find the surface area of polyhedra.

Let’s contrast surface area and volume.

Let’s investigate perfect squares and perfect cubes.

Let’s write a formula to find the surface area of a cube.

Let’s find out how much material is needed to build some tents.