What Makes a Shape?
Kit has a kite. What shape is on it? Let us see!
1st Grade MathHow Many Sides?
This is on Kit's kite. How many sides do you see?
It has 3 sides. The sides are
closed.
It is a triangle!
Big or Little?
Kit sees a big shape and a little one. Is the big one also a triangle?
Big or little cannot make a new shape. 3 closed sides make a triangle!
The Big Shape Rule
A shape is made by its sides!
Big or little? The same shape.
Red or green? The same shape.
Flip it or spin it? Still the same shape!
Red or green? The same shape.
Flip it or spin it? Still the same shape!
Dot's Shape
Dot has a shape. All of its sides are the same. How many sides do you see?
A square has 4 sides. All 4 sides are the same!
What Shape Is It?
Sam has a shape. It has 3 closed sides. What shape is it?
3 closed sides make a triangle. Sides make the shape!
Flip It!
Meg flips her shape. Is it still a triangle?
A flip cannot make a new shape. It still has 3 closed sides!
What Goes in the Blank?
A circle has ? sides.
A circle has 0 sides. But it is still closed!
Compare the Shapes
Compare the shapes. Is the pink one also a square?
Pink or green cannot make a new shape. All squares have 4 closed sides!
The Big Test!
Kit spins his shape. Then he makes it big and red.
It still has 3 closed sides. What is it?
A spin cannot make it new. Big and red cannot make it new. 3 closed sides = a triangle!
Look at your home. Can you see a shape with 4 sides? Can you see one with 3 sides?
You Did It!
0/8
correct
shape
sides
closed
flip
spin
compare