Relate tiling a rectangle to multiplying side lengths

G3.MD.11Grade 3MeasurementSource mission: Area

Shows that the number of unit squares tiling a rectangle equals the product of its side lengths.

Progress & proof summary

LifecycleNot started

Evidence progress0 of 1 pieces collected

Current predictionNo prediction yet

Next reviewNot scheduled

Mastery projection: Not available yetWhat does this mean?

3.MD.C.7a

accepts the formula without connecting it to the array of squares, which later breaks on non-rectangles

These evidence lanes define what would count toward this atom.

EvidencePerformanceStatusNext step

Explain the ideaDescribe why the response works Not startedCollect one observation

No evidence recorded yet

The first response record for this atom will appear here.

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Use one focused task to begin collecting evidence for this atom.

Explain the idea

Shows that the number of unit squares tiling a rectangle equals the product of its side lengths.

Estimated time: ~5 min