Thursday
Thursday: Shape families
Chris the Coyote sits by the trail sign and opens his storyteller's satchel.
"Tonight's tale is about the shape families of the forest," he says.
"The biggest family was the quadrilaterals. Every member had four sides."
"Inside it lived the parallelograms, with two pairs of parallel sides."
"The rectangles had four right angles. The rhombuses had four equal sides."
"And the squares? They had everything, so they belonged to every family."
"Ferris always said, what is true for a family is true for all its members."
Story: Families inside families
A quadrilateral has four sides.
A parallelogram is a quadrilateral with two pairs of parallel sides.
A rectangle is a parallelogram with four right angles.
A rhombus is a parallelogram with four equal sides.
A square is both a rectangle and a rhombus.
All rectangles have four right angles. Squares are rectangles.
So all squares have four right angles too.
- Read the question.
- Tap your answer.
Every square is also a what?Every rhombus is also a what?
Every rectangle is also a what?- Read the question.
- Tap your answer.
This trapezoid has just one pair of parallel sides. Which family does it belong to?- Each family fits inside the one before it.
- Put them from biggest family to smallest.
| Sentence | True or false? |
|---|---|
| Every square is a rectangle. | ? |
| Every rectangle is a square. | ? |
| Every rhombus is a parallelogram. | ? |
| All squares have four right angles. | ? |
| Every parallelogram is a rectangle. | ? |
Check each corner with the corner of a sheet of paper.
Measure the sides with a ruler.
Name every family each shape belongs to.
What a family! Tomorrow Freddy hosts the grand review game.