Knowledge atom
Group addends to make a ten (associative property)
Regroups three addends so that two of them combine to ten, then adds the remaining addend.
Start practiceProgress & 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.B.3 1.OA.A.2
Prerequisites
Common misconceptions
- does not scan for the ten-pair and adds left to right
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
Recognize itIdentify the target across examples Not startedCollect one observation
Recent evidence
No evidence recorded yet
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