Science Notebook: Measure and Compare

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Date:

Today I am practising: using a simple nonstandard measure to compare objects

Choose two pencils or leaves. Predict which is longer.

Line up paper clips as equal measuring units.

Measure object A and record the number of clips.

Measure object B with the same clips.

Circle longer, shorter, or the same length.

Explain why both objects need the same unit.

Grown-up guide

Model starting at one edge and leaving no gaps between units.
Use only one kind of unit for both objects in a comparison.
Separate the prediction from the measured result; either prediction can be useful.