Lesson 11-3: Identify and Classify 3-D Figures

Identify and Classify
3-D Figures




By: Ms. G

Is he right?

Sam says it's a rectangle

Is he right?

Kev says this shape is a Cube

Solve & Share- Discuss with your table

A cube is like a die (all sides must be squares).

A rectangle is 2-D (flat).

What are some attributes Kev and Sam should consider about this shape?

​

Neither Are Correct!

3-D Figures can be categorized by their Attributes

An outside surface of a 3-D figure. Some faces are flat, some are curved.

Face

​FACE

Fill in the Blanks

3-D Figures can be categorized by their Attributes

A line segment formed when two faces meet. Some edges are straight, some are curved.

Edge

​Edge

Fill in the Blanks

3-D Figures can be categorized by their Attributes

The point farthest from the base of a figure. Not all figures have an apex.

Apex

​Apex

​Base

Multiple Choice

Does this shape have an apex?

• Yes

• No

Multiple Select

Which shapes have an apex?

points where edges meet

Vertices:

Special face

Base:

Other Vocab

​ https://docs.google.com/presentation/d/1b2WRsF2ZaTmlcp_dA8KhLSfJqD7cSGFv5nab48LQHkw/edit#slide=id.g12a8adb1b0d_0_562

3-D Figure Names

https://media.pk12ls.com/curriculum/math/Tools/tools/EnvisionGeometry.html?helpDir=./help_mt&returnURL=../MTindex.html&mode=2

Discuss with your team the different figures at your table

What is the difference between Prisms and Pyramids?

​Click
Here!

Multiple Choice

Prisms have ____ bases.

• 0

• 1

• 2

• 3

Multiple Choice

Pyramids have ____ base.

• 0

• 1

• 2

• 3

What are some defining attributes?

Think- Faces, Edges, Bases, Apex?

Multiple Choice

What is this shape called?

• Circle

• Sphere

• Cone

• Cylinder

Do Now:

Table 1: 3-D Scavenger Hunt
Table 2: Geometry Notes
Table 3: Independent Practice (P517-518)
Table 4: iReady- Standards Mastery

​If you finish Early,
You can decorate and create 3 D shapes using the nets on the back table.

Poll

How do you feel about this topic?

• 1- I need more support.

• 2- I need a little more practice.

• 3- I feel pretty good!

• 4- I can teach this!