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←MathGrade 1Numbers

Knowledge atom

Count backward by ones from any number within 20

G1.NUM.03Grade 1NumbersSource mission: Count Backward

Says the counting sequence in reverse from a given number within 20 down to 0.

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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

K.CC.IA.A.1 K.CC.IA.A.2 1.NBT.A.1 1.OA.C.5

Prerequisites

Common misconceptions

  • loses the sequence while crossing the teens boundary

Required evidence

These evidence lanes define what would count toward this atom.

i
EvidencePerformanceStatusNext step
Recall itRetrieve the idea without a cue Not startedCollect one observation
Show the stepsCarry out the procedure accurately Not startedCollect one observation

Recent evidence

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Recall it

Says the counting sequence in reverse from a given number within 20 down to 0.

Estimated time: ~5 min

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