1. Geometric Solids
Everyday Math Lesson 11.1

2. Lesson Objectives I can compare and classify geometric solids.
I can describe and classify polyhedrons according to their faces.

3. Mental Math
¾ 33 1/3 % /5 12 ½ % /5 87 ½ % 1.25
Mentally convert between fractions, decimals, and percents (or refer to probability meter)

4. Math Message ( 3 minutes)
Name an object that is shaped like a geometric solid.
I will hand out post-it notes to the students when they enter the classroom to use during the math message.

5. Math Message Follow-Up
There are 5 different types of geometric solids.
*Prisms
*Pyramids
*Cylinders
*Cones
*Spheres
Geometric Figures are described by their surfaces, edges and vertices.

6. At least 1 of their surfaces in NOT flat!
Geometric Solids
Look at pg. 149 in the SRB.
Are all geometric solids also polyhedrons?
Why?
Cone Cylinder Sphere
At least 1 of their surfaces in NOT flat!

7. Let’s Investigate! * Describe a regular polyhedron.
Geometric solids with faces that are all the same size and shape.
6 sided dice are considered fair because there is an equal chance of any one of the 6 landing on top when the dice is thrown.
Is rolling a polyhedron dice fair???

8. Independent Work
On your own at a level 0, complete Math boxes on page 371.
When you are finished, you may work on Study Link 11.1