Knowledge atom
Decompose numbers through 10 in multiple ways
Breaks a total through 10 into two or more parts and produces multiple valid decompositions while preserving the original total.
Start practiceProgress & proof summary
LifecycleNot started
Evidence progress0 of 3 pieces collected
0%Current predictionNo prediction yet
Why?Next reviewNot scheduled
Mastery projection: Not available yetWhat does this mean?
Standards alignment
K.OA.A.3
Prerequisites
Common misconceptions
- stops after one decomposition because there must be only one right answer
- changes the total while changing the parts
Required evidence
These evidence lanes define what would count toward this atom.
EvidencePerformanceStatusNext step
Show the stepsCarry out the procedure accurately Not startedCollect one observation
Represent itShow the idea with a model or notation Not startedCollect one observation
Explain the ideaDescribe why the response works Not startedCollect one observation
Recent evidence
No evidence recorded yet
The first response record for this atom will appear here.