Copy of Coordinates and 2D shapes Lesson Plan

1. Coordinates and 2D shapes
Describing polygons and their properties

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3. What is a polygon?
What are the properties of 2D shapes?
Activity: Spot the Polygons!
Lesson Outline

4. Two - dimensional
Identify polygons among various shapes.
Recognize and understand the properties of 2D shapes.
Classify 2D figures based on their properties.
Lesson Outcomes

5. Are all
of these
shapes
polygons?
Let's find out!

6. What is a polygon?
A polygon is a closed shape with three or more straight sides.
Polygons Non-polygons

7. More examples of polygons around us!

8. Flat Have length and width Have no thickness
LENGTH
WIDTH
What are the
properties
of 2D shapes?
All polygons are 2D
shapes BUT NOT all
shapes are polygons.

9. Properties of 2D shapes
to look out for:
Number of sides
and angles
Having parallel
and equal sides
Including right
angles
3
1 2

10. To describe 2D shapes,
we can ask the following
questions:
How many sides are there?
How many angles are there?
Are there any parallel sides?
Are there any right angles?
Are there any sides that have the same length?

11. Examples of 2D Shapes
and their Properties
Four sides and four angles
One pair of parallel sides
Does not have any right angles
Four sides and four angles
Two pairs of sides are parallel
All angles are right angles
This is a trapezoid. This is a rectangle.

12. Look at each picture below and determine whether it's a polygon or a non-
polygon. Discuss your answer with a partner.
Activity: Spot the Polygons!

13. Let's Review!
To classify 2D shapes, you must:
What are the defining
characteristics of
this shape?
What other shapes share the
same properties?
How does this shape
differ from others in terms of its
characteristics?
identify features
of the shapes
find their
similarities
find their
differences

14. Describe the properties of the kite's body and identify if
it is a polygon or not.
Share your answer in our next session.
Is the main body of the kite a rhombus?
Assignment

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