Solve put-together, total-unknown word problems

G1.OA.15Grade 1OperationsSource mission: Part–Whole Stories

Given two parts that exist at the same time, finds the whole.

Progress & proof summary

LifecycleNot started

Evidence progress0 of 2 pieces collected

Current predictionNo prediction yet

Next reviewNot scheduled

Mastery projection: Not available yetWhat does this mean?

K.OA.A.2 1.OA.A.1

No common misconceptions have been recorded yet.

These evidence lanes define what would count toward this atom.

EvidencePerformanceStatusNext step

Apply the ideaUse the idea in a new situation Not startedCollect one observation

Tell it apartDistinguish the target from a near miss Not startedCollect one observation

No evidence recorded yet

The first response record for this atom will appear here.

Recommended next step

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

Apply the idea

Given two parts that exist at the same time, finds the whole.

Estimated time: ~5 min