K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.
Describe Relationships Among Quadrilaterals
Quadrilaterals are connected in a hierarchy: some shapes are special cases of others.
Do this: Read the concept below, then try the quiz or activity.
Lesson 216 of 216
Concept
Key relationships: - All squares are rectangles. - All squares are rhombuses. - All rectangles and rhombuses are parallelograms. - Not all parallelograms are rectangles. - Not all rectangles are squares.
Use properties: - parallel sides - equal sides - right angles
This structure helps classify by properties, not just by appearance.
Try it
Decide true or false: 1. Every square is a rectangle. 2. Every rectangle is a square. 3. Every rhombus is a parallelogram. 4. A shape with 4 right angles is always a rectangle. 5. Give one example of a parallelogram that is not a rectangle.