Surface area using nets

The topic  is a topic under the 6th Grade Math Mission. This exercise practices calculation of surface area and specifically uses nets of 3D shapes to accomplish this.

Types of Problems
There are two types of problems in this exercise:


 * 1) Calculate the surface area: This problem provides a labeled net of a three dimensional solid. The student is asked to calculate the total surface area of the solid.Saun1.png
 * 2) Determine if surface area is correct: This problem provides a net of a solid and a claim about the surface area. The student is asked to determine if the claim is true or false and answer accordingly.Saun2.png

Strategies
Surface area via nets only requires knowledge of the area formulas for two dimensional shapes. The common ones required for success on this exercise are rectangles and triangles.
 * 1) Most of the nets are composed of several congruent shapes. Therefore calculating one of the shapes and multiplying by the number of times it occurs can shorten timing.
 * 2) On the Determine if surface area is correct problem research indicates that when the answer is not correct, it is the sum of some of the sides but not all. This can help to determine "yes" or "no" more quickly.