Add and subtract fractions with the same denominator within one whole…
Add and subtract fractions with the same denominator within one whole (the unit also adds past one whole, a Year 4 step).
The National curriculum in England: mathematics programmes of study, Key Stages 1–3 outcome (Number: fractions) for Year 3 says: “Add and subtract fractions with the same denominator within one whole (the unit also adds past one whole, a Year 4 step).” This Fieldbook unit teaches it hands-on, with everyday materials and a printable teacher guide and student sheet for every lesson. Official wording: National curriculum in England: mathematics programmes of study, Key Stages 1–3.
Fair Shares: Fractions and Decimals Grades 3–4 · partly supports this outcome
Is half always the same size? Where does three-quarters stand? Why is 3/4 + 2/4 not 5/8? Who jumped further, 1.4 m or 1.35 m? Four hands-on lessons where students fold, stand on a giant number line, measure recipes and measure their own jumps to make sense of fractions and decimals.
- Which recipe makes more? 50–60 min
Teams measure three trail-mix recipes with fraction cups and dry rice, and find that 3/4 cup plus 2/4 cup overflows the 1-cup mark. Students add and decompose fractions with the same denominator, catch the 'add the bottoms too' mistake with real evidence, and compare totals greater than one.
More England Year 3 math outcomes we teach
Every England Year 3 math curriculum outcome we teach
Every unit matched to England's curriculum · All places and curricula
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