Knowledge atom
Understand length as a count of same-size units
Understands a length measurement as the number of identical units fitting end to end.
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.MD.A.2
Prerequisites
Common misconceptions
- accepts mixed unit sizes in one measurement
Required evidence
These evidence lanes define what would count toward this atom.
EvidencePerformanceStatusNext step
Explain the ideaDescribe why the response works Not startedCollect one observation
Tell it apartDistinguish the target from a near miss Not startedCollect one observation
Recent evidence
No evidence recorded yet
The first response record for this atom will appear here.
