Quadrilaterals are 4 sided figures. They have four interior angles and special properties. Their sides may be equal and some of them have one or more lines of symmetry.

Quadrilaterals sit between Triangles (having three sides and three internal angles) and Polygons (having five sides/angles or more).

To cover this lesson please follow these steps:

1. Listen to the quadrilateral song in the video attached.
2. Download the worksheets and print pages 2, 4, and 6 that contain the exercises.
3. Finally, compare your answers to the answer sheets.

Congratulations!
You now know the names and properties of different types of quadrilaterals, and can use them in your designs.