You cut a sandwich for two people. Both pieces should be the same.
Step 1: Let's Learn
Read it, or press Listen and follow the words.
Equal means the same size
Two pieces are halves only if they are the same size.
Half is one of two equal shares of a whole.
Two halves put back together make the whole again.
Halves must be equal
Two pieces are not halves unless they are the same size. Cutting anywhere gives two pieces; cutting fairly gives two halves.
They can look different and still be halves
A square cut corner to corner gives two triangles. Different shape from a straight cut, same amount each.
Step 2: Try It Yourself
Tap a share to shade it.
The whole is cut into 2 equal shares, called halves.
These pieces are not the same size, so they are not halves.
How many pieces
Step 3: Watch an Example
One step at a time.
Watch Leo Check for Halves
Leo is shown a circle cut into two pieces.
- Step 1
He looks at both pieces side by side.
Step 4: Your Turn
Practice makes it stick.
Sharing a Pizza
Problem 1 of 1
Two friends share a pizza fairly. How many shares?
About Halves
1 of 2
How many halves make one whole?
2 of 2
Are two pieces halves if one is bigger?
Halve a Rectangle
Cut it into 2 shares and shade one.
The whole is cut into 2 equal shares, called halves.
Step 5: Quick Check
Show what you know.
Question 1 of 2
How many equal shares are in a half?
Question 2 of 2
What must be true about halves?
What You Learned
- Two equal shares are called halves.
- Equal means exactly the same size.
- Two halves make one whole.