1. Surface area of 3-D objects
7.M.G.06a

2. Performance Objective
Solve real-world and mathematical problems involving area, volume and surface area of two- and three- dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms.

3. Today’s Objective
I can solve real-world problems by calculating surface area of two- and three-dimensional objects.

4. Video
Surface Area

5. Quick Write
You have 1 minutes to write down everything you remember from the video on the laminated card

6. Write-Pair-Share
Now that you have already written down what you remember, turn to your shoulder partner and share what you wrote

7. Vocabulary
Rectangular Prism: A solid (3-dimensional) object which has six faces that are rectangles.
Examples: Juice box, kleenex box
Cube : a 3-D shape that has the same length, width and height
Examples: dice, rubik cube,

8. Vocabulary
Face of rectangular prisms: any individual surface of a solid object
Base of a rectangular prism: the face that the object stands on

9. Vocabulary
Surface area-the amount of all unit squares that are needed to cover the outside of a solid

10. Formula
Surface Area = 2(length)(width) + 2(length)(height) + 2(width)(height)
SA = 2LW + 2LH + 2WH

11. I do
SA = 2(6)(3) + 2(6)(2) + 2(3)(2)

12. Guided Practice
SA = 2(L)(W) + 2(L)(H) + 2(W)(H)

13. Guided Practice

14. Independent Practice 1. 2.

15. Closure
The person closest to the whiteboard and facing the door, tell your group how to find the surface area of a rectangular prism