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←MathGrade 1Operations

Knowledge atom

Solve put-together, addend-unknown word problems within 20

G1.OA.16Grade 1OperationsSource mission: Part–Whole Stories

Given a whole and one part, finds the other part.

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Progress & proof summary

LifecycleNot started
Evidence progress0 of 2 pieces collected
0%
Current predictionNo prediction yet
Why?
Next reviewNot scheduled
Mastery projection: Not available yetWhat does this mean?

Standards alignment

1.OA.A.1 1.OA.B.4 1.OA.D.8

Prerequisites

Common misconceptions

  • adds the two given numbers because the story has no removal language

Required evidence

These evidence lanes define what would count toward this atom.

i
EvidencePerformanceStatusNext step
Apply the ideaUse the idea in a new situation Not startedCollect one observation
Represent itShow the idea with a model or notation Not startedCollect one observation

Recent evidence

No evidence recorded yet

The first response record for this atom will appear here.

Recommended next step

Start a short practice

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

Apply the idea

Given a whole and one part, finds the other part.

Estimated time: ~5 min

Start this practice