Lesson 22: Quadrilaterals & congruent Shapes
Lesson 22 Learning Objectives:
Identify and sort quadrilaterals that are parallelograms, trapezoids, and others
Identify congruent shapes and produce shapes congruent to a given shape
Embedded Files
Reflect:
Reflect in your math journal. Draw, create or write to share your thinking. See Lesson guide 22 for more reflection questions, real life anchoring, playful explorations and creative invitations.
How do you know if a shape is a trapezoid or not? Can you draw an example and a non-example?
What makes two shapes congruent even if one is turned or flipped?
Parallelograms lean but never fall — why do you think those opposite sides matter so much to their identity?
If two shapes are congruent, are they twins, clones, or mirrors? How does the metaphor you choose change the way you imagine them?
If you had to design a stamp to make congruent shapes over and over, what would it look like? How does stamping help us understand sameness?
If shapes could talk, what would your favorite one say about who it is?
Math Talk:
Have a conversation about this image. Be curious. Be creative. Can you see in different ways?
What numbers, shapes and patterns do you notice? What is the same? What is different?
Which shapes are congruent? Which are not? How do you know?
Image 1: Jay Friedenberg; Image 2: Abakcus
Page updated
Report abuse