Here’s a card sort I created for the definitions of the special quadrilaterals.

Each group contains four cards: the name of the quadrilateral, a diagram, the definition, and a list of the other shapes quadrilateral is an example of. The diagram shows only the information that’s stated in the definition. Other properties of the quadrilaterals are covered in the following skills (some of which I’ve already blogged about.)

Thank you for this activity. It contains the vocabulary and math notations I needed for the 5th graders I teach. We are going to make a book or place them in our composition notebooks.