K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.
Identify quadrilaterals
Quadrilaterals are 4-sided polygons. Spotting them builds geometry confidence.
Do this: Read the concept below, then try the quiz or activity.
Lesson 169 of 186
Concept
A quadrilateral: - has 4 straight sides - has 4 corners (vertices) - is closed (no gaps)
Examples: - square - rectangle - rhombus - trapezoid
Not quadrilaterals: - triangle (3 sides) - pentagon (5 sides) - open shapes
Try it
Decide if each is a quadrilateral: 1. A closed shape with 4 sides 2. A triangle 3. A rectangle 4. A 5-sided polygon 5. Draw two different quadrilaterals