PrimaryMathsArea by counting squares10–15 min
Square Counter
Mark whole and half squares under an irregular leaf, pond or puddle to estimate its area within 10%.
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0 points
The experiment opens when it comes into view.
Theory and model assumptions
Mark whole and half squares under an irregular leaf, pond or puddle to estimate its area within 10%.
Teacher guidance
Primary Mathematics: area (estimating the area of a shape on a square grid)
Expected time: 10–15 minutes.