Unit 6 Contents

Use the Quadrilateral Cards pages and the Sorting Board pages in the Student Activity Book to answer Questions 2–7.

2. Look at the quadrilaterals on the Quadrilateral Cards.
1. List the shapes that have right angles.
2. List which shapes have at least two congruent sides.
3. List the shapes that are rectangles.
3. Label “Box A” on the Sorting Board page as “2 pairs of parallel sides.” Label “Box B” as “1 pair of parallel sides.” Sort the Quadrilateral Cards.
1. Which shapes have two pairs of parallel sides? What are these shapes called?
2. Which shapes have only one pair of parallel sides? What are these shapes called?
3. Which shapes are in neither Box A nor Box B?
4. Jessie placed Shape 5 in both Box A and Box B. Do you agree with her placement? Why or why not?
4. What shape am I? Use the clues to name the polygon. Draw a sketch of each shape.
1. I am a quadrilateral that has four right angles. All of my sides are the same length.
2. I am a quadrilateral and all of my sides are the same length. Two of my angles are acute.
3. I am a quadrilateral with only one set of parallel sides.
4. I am a rectangle with four congruent sides.
5. I am a rectangle that is also a rhombus.
6. I am a rhombus that is also a square.
5. Place Shape 4 from the Quadrilateral Cards page in the space where “Box A” and “Box B” overlap on the Sorting Board. Label “Box B” as “Rectangles.” Sort the Quadrilateral Cards.
1. What other shapes belong in Box A?
2. What is an appropriate label for Box A?
3. Does Shape 9 belong in Box A? Why or why not?
4. Ana sketched a square and placed it in Box A but not in the overlap with Box B. Do you agree with Ana's placement? Why or why not?
5. Peter sketched a quadrilateral with four right angles and opposite congruent sides. He put it in Box B. Do you with Peter's placement? Why or why not?