1. Desert Willow Elementary School
Mrs. Rabuck
5th Grade
Desert Willow Elementary School
2-D Shapes

2. Set:
Take a look around the room. Create a list of shapes that you see. Make sure to spell out the names of the shapes and if you are not sure of the name draw a picture of the shape. You will have three minutes. At the end of three minutes we will share.
This is an individual task.

3. Objective:
Today I can understand the attributes of 2-dimensional figures.
Attribute means: quality, characteristic, trait, feature, element, aspect, property, sign, hallmark, mark, distinction.

4. Essential Questions:
What is a 2d figure? How do I classify 2d figures?
What is a polygon? How are sides and angles related to polygons?

5. Note Time!

6. What are 2-D Figures?
A shape that only has two dimensions (such as length and height) and no thickness is a 2-D figure.
Basically, if the figure is flat, it is a 2-D figure.

7. What are 2-D Figures?
Take a minute in your table group to list as many 2-D figures you can think of. Recorder, your job is to list the 2-D figures, your table comes up with.
When the timer goes off speakers will share.
Ready? GO!

8. GREAT JOB! YES! 2-D Shapes include:
Triangles, Squares, Rectangles, Circles, Pentagons, Hexagons, Heptagons, Octagons, Nonagons, and Decagons.

10. What is a Polygon?
A polygon is a plane (2D) shape with straight sides.
To be a regular polygon all the sides and angles must be the same.
These are polygons:
Triangles, Squares, Pentagons, Hexagons, Heptagons, Octagons, Nonagons, and Decagons

11. What is a Polygon? Other polygons include:
Quadrilaterals A quadrilateral is a 4 sided figure.
The sides have to be straight, and it has to be 2-dimensional.

12. Polygons!
POLYGONS ARE
2-DIMENSIONAL FIGURES!!!!!