1. Liz also sorted some shapes into two groups and drew two more shapes in Group 2.
    1. What properties did she use to sort the shapes?
    2. Shannon thinks the shapes in Group 1 all have a right angle and the shapes in Group 2 do not. Do you agree? Why or why not?
    3. Chris thinks the shapes in Group 1 each have at least one pair of parallel sides. Does this property describe all of the shapes in Group 1?