Lesson objective: Apply the distributive property to realworld area problems.
This lesson provides an opportunity for students to apply their knowledge and understanding of the distributive property to a reallife situation. Students are asked to design a bulletin board which needs to be split, and the area needs to be found for the smaller rectangles as well as the whole bulletin board.
Key Concept students will use:

The area of a rectangle with wholenumber side lengths a and b + c is the sum of a x b and a x c.
Skills students will use:
 Using the distributive property
 Multiplication
 Solving for area
Students engage in Mathematical Practice 7 (Look for and make use of structure) as they use the area model to decompose rectangles while using the distributive property to find the area the whole rectangle.
Key vocabulary:
 area
 multiply