1. 3rd Grade Math Module 7 Lesson 7
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3rd Grade Math
Module 7 Lesson 7

2. I can compose and decompose polygons.
Lesson 7 Learning Goal
I can compose and decompose polygons.

3. Lesson 7 Stand up ! What type of angle am I modeling?
I can compose and decompose polygons.
Stand up !
What type of angle am I modeling?
Model a right angle with your arms.
Model another right angle.
How many sides does a triangle have?
How can you model a triangle?
What do we call a four-sided polygon?
How can you model a quadrilateral?
Point to the wall parallel to the one I’m pointing at.
Point to the wall that makes a right angle with the wall I’m pointing at.
Physiometry

4. Lesson 7 Quadrilateral How many sides does this polygon have?
I can compose and decompose polygons.
How many sides does this polygon have?
What do we call polygons that have four sides?
Quadrilateral
Classify the polygon

5. Lesson 7 Trapezoid How many sets of parallel lines?
I can compose and decompose polygons.
How many sets of parallel lines?
What do we call a quadrilateral with one set of parallel lines?
Trapezoid
Classify the polygon

6. Lesson 7 Is this a quadrilateral? How many right angles does this
I can compose and decompose polygons.
Is this a quadrilateral?
How many right angles does this
quadrilateral have?
Classify the polygon

7. Lesson 7 Parallelogram How many sets of parallel lines?
I can compose and decompose polygons.
How many sets of parallel lines?
What do we call a quadrilateral with two sets of parallel lines?
Parallelogram
Classify the polygon

8. Lesson 7 Is this polygon a quadrilateral?
I can compose and decompose polygons.
Is this polygon a quadrilateral?
How many right angles does this
quadrilateral have?
Classify the polygon

9. Lesson 7 Rectangle Is this quadrilateral a parallelogram?
I can compose and decompose polygons.
Is this quadrilateral a parallelogram?
How do you know?
What is another name for this quadrilateral?
Rectangle
Classify the polygon

10. Lesson 7 Is this polygon a quadrilateral?
I can compose and decompose polygons.
Is this polygon a quadrilateral?
How many right angles does this
quadrilateral have?
Classify the polygon

11. Lesson 7 Square What do we call a rectangle with equal side lengths?
I can compose and decompose polygons.
What do we call a rectangle with
equal side lengths?
Square
What is another name for this quadrilateral?
Classify the polygon

12. Lesson 7 Hexagon How many sides does this polygon have?
I can compose and decompose polygons.
How many sides does this polygon have?
What do we call a polygon with six sides?
Hexagon
Classify the polygon

13. Lesson 7 Pentagon How many sides does this polygon have?
I can compose and decompose polygons.
How many sides does this polygon have?
What do we call a polygon with five sides?
Pentagon
Classify the polygon

14. Use suggested materials for
Lesson 7
I can compose and decompose polygons.
Use suggested materials for
Concept Development.
Concept Development