Derive a formula for the area of a right triangle using a rectangle. Apply a formula to find the area of a triangle.

Solve mathematical and real-world problems involving the area of quadrilaterals and composite figures by decomposing them into triangles or rectangles.

Solve mathematical and real-world problems involving the volume of right rectangular prisms with positive rational number edge lengths using a visual model and a formula.

Given a mathematical or real-world context, find the surface area of right rectangular prisms and right rectangular pyramids using the figure’s net.

Nets and their 3D counterparts are connected. Seeing this connection will help students to understand the connection between surface are and volume.

Finding surface area is as simple as finding the area of each face of the 3D shape. Understanding which net relates to each 3D shape is crucial to understanding surface area.

Volume is the amount of space that an object takes up.

It can help to think of volume as the number of unit cubes that can fit inside an object.

In this 3-inch cube, think of how many 1-inch cubes would fit on the bottom layer of the cube.