Grade 2 › G2U06 Unit Fractions

Grade 2 › G2U06 Unit Fractions › L3
GRADE 2 · ALBERTAOUTCOME AB-MAT2-2N3

L3 · Comparing unit fractions

Learning goal

“I can compare unit fractions of the same whole: more equal parts means each part is smaller. I can compare the same fraction of different wholes.”

Compare — to look at two amounts and say which is bigger or smaller.
Bigger part — the part that has more of the whole.
Smaller part — the part that has less of the whole.
Same whole — wholes that are the same size, so their parts can be compared fairly.
Worked example

Two pies are the same size. One pie is split into 2 equal parts. The other is split into 4 equal parts. Which is bigger: 1/2 or 1/4? Step 1: The wholes are the same size, so the comparison is fair. Step 2: The 2-part pie shares the whole between fewer parts - each part gets more. Step 3: 1/2 is bigger than 1/4. More equal parts in the whole means each part is smaller.

Check yourself — explain it

A whole split into more equal parts makes each part smaller because:

Paired problem — example still visible

Two cakes are the same size. One is split into 3 equal parts, one into 6. Which is smaller: 1/3 or 1/6? -> 1/6

Faded completion — last step is yours

"Same-size wholes: 1/5 and 1/9. The whole in ___ parts makes smaller parts, so ___ is smaller." -> 9; 1/9

Ready to practise?

10 scored questions with a 3-rung hint ladder. Mastery needs 8/10 plus both gate questions.

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