This is a great real life application of surface area! Students will need to measure and create a net of their bedroom. Then they will create a 3D model of their bedroom using the scale of 1 inch to 3 feet. Next they will calculate the surface area of their bedroom and determine what the surface area of their walls they will need to paint. Afterwards students will determine how many gallons and quarts of paint they will need to paint their bedroom. The final step if for students to research the cost of the paint and primer they will need and determine the cost to paint the walls of their bedroom.