Odd or Even

MathematicsNumber Representation & Place ValueAges 7–8

Determine whether a group of objects (up to 20) has an odd or even number of members

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Teaching Table

Set out your lesson

Use pairs to identify odd/even and split an even set into equal groups.

Activity

Can discuss the supplied example in an accessible mode; adapt directions without supplying the target answer.

Policy

Check the learner can follow the model with support before moving on. Source prerequisite ordering is not learner mastery; return to prerequisite work when needed.

Draw dots or use large counters; keep final quantities out of sight until T. Open S first, G together, then T alone; put S and G away before T. Keys stay adult-only. No purchase or printing is required; an unavailable physical observation remains pending, not passed.

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What this lesson covers and its limits

These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

partial: Determine whether a group of objects (up to 20) has an odd or even number of members
Two independent quantities up to twenty; a universal parity rule is not assumed.
partial: Pair objects and determine whether there is one left over (odd) or not (even)
Two independent quantities up to twenty; a universal parity rule is not assumed.
partial: Count a group by 2s to determine if the total is even
Two independent quantities up to twenty; a universal parity rule is not assumed.
partial: Write an equation to express an even number as a sum of two equal addends (e.g. 8 = 4 + 4)
Two independent quantities up to twenty; a universal parity rule is not assumed.
partial: If {{name}} has a group of 14 objects, can they tell you whether that number is odd or even — for example by pairing them up to see if any are left over?
Two independent quantities up to twenty; a universal parity rule is not assumed.

Two independent quantities up to twenty; a universal parity rule is not assumed.

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Use pairs to identify odd/even and split an even set into equal groups.

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Check understanding

Pair objects and determine whether there is one left over (odd) or not (even)
Count a group by 2s to determine if the total is even
Write an equation to express an even number as a sum of two equal addends (e.g. 8 = 4 + 4)

“If your child has a group of 14 objects, can they tell you whether that number is odd or even — for example by pairing them up to see if any are left over?”

Curriculum record

Type: Conceptual
Subject: Mathematics
Domain: Number Representation & Place Value
Age range: Ages 7–8

Standards

ccss-math:2.OA.3