bell work

Bell Work

1. Classify the shape of a soup can as a three-dimensional figure.

2. Classify the following shape using two three-dimensional figures.

Cylinder

1. Rectangular Prism

2. Triangular Prism

Surface Area Using Nets

Definition• Surface Area – is the total number of square

units used to cover a 3-D surface.• Surface area is found by finding the area of all

the sides and then adding those answers up.

Nets• A net is all the surfaces of a solid laid out flat.• A two-dimensional pattern that can be folded

to form a three-dimensional figure.

Top

RightSideFront

Top

Bottom

Front

Back

Right SideLeft Side

Exploration Activity• YOU WILL NEED:1. Handout

2. 2 solids: Rectangular Prism and Triangular Prism

3. Practice- Surface Area Worksheet (When we are done with #1 and #2)

1. Answer Questions 1-3 on your worksheet.2. Cut around the outside of each net.3. Fold to make a three dimensional figure4. Follow Steps 1-3 on your worksheet with Miss

Schrader to find the surface area of each of your cut out figures.

5. Try to answer questions 4 and 5 on your own. We will discuss these answers on Friday.

6. Answer questions 6 and 7 on your own.7. Turn it into your periods box where you

usually turn in your assessment.8. Work on your practice.