# Classifying Quadrilaterals

- Author:
- VanessaC, sonom, Anthony OR 柯志明, Jenny Novak

- Topic:
- Quadrilaterals

The aim of this lesson is to identify different types of quadrilaterals and understand the similarities and differences between them.

**1.**Watch this video that has a song about different types of quadrilaterals:[This video is sourced from NUMBEROCK Math Songs on YouTube; https://www.youtube.com/watch?v=WMkY_uIku9Q]

The picture below contains a typical example of what each different type of quadrilateral may look like:

Here is a diagram that shows a hierarchy we can use to classify quadrilaterals:

Here is another diagram that groups quadrilaterals based on the properties that they have in common:

[The two pictures above were sourced from:
Schmude, M. (Producer). (2016). Geometry video. [Video podcast]. In

*EDME358: Primary Mathematics 2A - Space, Measurement and Number*. Armidale, Australia: University of New England. Retrieved from https://moodle.une.edu.au]**2.**Classify quadrilaterals A to T by colouring. (Click a quadrilateral from the right hand column, then click those quadrilaterals A to T in the same class.) Drag the ruler and rotate it (using the red point) to measure lengths and right angles.

**3.**Examine each of the following quadrilaterals. Determine what type of quadrilateral the figure represents. Justify your conclusions.