Knowledge atom

Interpret subtraction as comparing two quantities

G1.OA.28Grade 1OperationsSource mission: Model Addition & Subtraction

Recognizes a comparison asking how many more or fewer as a subtraction situation and identifies the difference between the two quantities.

Progress & proof summary

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Evidence progress0 of 2 pieces collected

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Next reviewNot scheduled

Mastery projection: Not available yetWhat does this mean?

1.OA.A.1

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EvidencePerformanceStatusNext step

Recognize itIdentify the target across examples Not startedCollect one observation

Explain the ideaDescribe why the response works Not startedCollect one observation

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Recognize it

Recognizes a comparison asking how many more or fewer as a subtraction situation and identifies the difference between the two quantities.

Estimated time: ~5 min