lesson
Compare equal-sized parts
1 · Learn
When denominators match, the pieces have the same size. More pieces then means a larger fraction: 5/8 is greater than 3/8.
For unit fractions of the same whole, dividing into more equal parts makes each part smaller. One quarter is smaller than one third.
2 · Worked example
I compare 2/5 and 4/5 by looking at fifth-sized pieces. Four pieces cover more than two.
3 · Your turn
Order 1/6, 1/2 and 1/3 from smallest to largest.
Check your answer
1/6, 1/3, 1/2, for equal wholes.
4 · Apply your learning
Use equal-length fraction strips to check the order. Explain why a bigger denominator does not mean a bigger unit fraction.
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Use objects or a drawn model before relying on a rule. Explain each step, check the units and revisit with varied examples. An adult can read the instructions without supplying the answer.
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