Unit 7, Lesson 7
Rectangles and Squares
Grade 5
Warm-up
What do you know about this shape?
Activity 1
Your teacher will give you a set of cards that show quadrilaterals.
Spread out your cards so you and your partner can see all of them.
Work together to find a quadrilateral that fits each clue. If you don’t think it’s possible to find that quadrilateral, explain why. Each quadrilateral can only be used for one clue.
- Find a rhombus that is also a square.
- Find a quadrilateral that is not a parallelogram.
- Find a rectangle that is not a square.
- Find a rhombus that is not a square.
- Find a square that is not a rectangle.
- Find a trapezoid that is not a rectangle.
- Find a parallelogram that is not a rectangle.
Activity 2
Write "always," "sometimes," or "never" in each blank to make the statements true.
For each statement that is completed with “sometimes,” draw a figure for which the statement is true and another figure for which the statement is false.
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A rhombus is ________________________ a square.
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A square is ________________________ a rhombus.
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A triangle is ________________________ a quadrilateral.
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A square is ________________________ a rectangle.
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A rectangle is ________________________ a parallelogram.
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A parallelogram is ________________________ a rhombus.
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A trapezoid is ________________________ a parallelogram.