Lesson: Classifying Quadrilaterals Mathematics • 4th Grade

In this lesson, we will learn how to sort and classify quadrilaterals by their properties and name them as trapezoids, parallelograms, rhombuses, rectangles, or squares in as many ways as possible.

Lesson Plan

Students will be able to

classify quadrilaterals as squares, rectangles, parallelograms, rhombuses, trapezoids, or none of these,
describe the properties of each quadrilateral,
name quadrilaterals in as many ways as possible,
sort quadrilaterals using Venn diagrams,
understand the hierarchy of quadrilaterals.

Lesson Worksheet

Q1:

A field is in the shape of a quadrilateral, with two straight footpaths connecting opposite corners. The footpaths cross at right angles. Given just this information, what can you say about the shape of the field?

Q2:

Is the following quadrilateral a rectangle?

Q3:

In which two quadrilaterals are all the sides equal in length?