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Term 4
One half, any way you cut it.
Cut out some rectangles
from coloured paper (from Cut-out 11).
Explore different ways to make one half.
1. Fold a paper rectangle in half lengthwise. Cut the
paper in half on the fold. Both pieces are exactly the
same size. Each piece is one half (1/2 ) of the original rectangle.
2. Fold another paper rectangle in half on the diagonal.
Cut the paper in half on the fold. Both pieces are exactly the same size. Each piece is one half of the original piece of paper.
3. What is another way to divide the paper into two equal parts? Explore with paper and scissors, and then sketch in the line where you fold and cut.
More equal parts of a whole.
When we divide something into 2 equal parts we call
the parts halves.
When we divide something into 3 equal parts we call the parts thirds.
When we divide something into 4 equal parts we call the parts fourths.
When we divide something into 5 equal parts we call the parts fifths.
Sandwiches for lunch.
Thabo and his 3 friends make lots of sandwiches for lunch.
They cut them up into fourths or quarters.
This means they cut them into 4 equal pieces.
Here is one way. Show 3 other ways they can do this.
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Dividing into fourths.
When we cut something into quarters (1/4s), we divide it into 4 equal parts.
Tick ( ) the pictures below that show quarters or fourths.
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