What this lesson teaches
Measurement concepts.
Measure objects using hand spans!
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Measurement concepts.
Non-standard measurement comes before standard measurement for an important reason: it builds the concept of a unit before the unit has a fixed value. Students who skip this stage often perform calculations correctly but lack physical intuition for whether an answer is reasonable.
1. Spread hand flat. 2. Measure table in hand-spans. 3. Record. 4. Measure 4 more.