K.2.G
The Standard
compare sets of objects up to at least 20 in each set using comparative language
Texas Essential Knowledge and Skills for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students count two groups with up to 20 objects in each. They say which group has more, fewer, or the same number of objects.
What Mastery Looks Like
- Students accurately count both groups and identify which has more, fewer, or the same number. They explain by matching objects or using counted totals.
Common Misconceptions
- Students may choose the group with larger objects or the group spread across more space. They may miscount or reverse the words more and fewer.
How to Assess It
- Show groups of 14 dots and 17 dots. Ask, “Which group has more, which has fewer, and how do you know?”
Lesson moves
Ways to Teach It
Give pairs counters and numeral cards to 20, then have them build two groups and compare them by matching each counter.
Show two pictured groups and ask, “Which has fewer, and how could you prove it without guessing?”
Play Compare and Keep, where partners draw number cards, build matching cube towers, and state which tower has more or fewer cubes.
Compare classroom supplies, such as pencils and glue sticks, and decide which item has more, fewer, or the same number.
Keep exploring
Related Standards
- K.7.B
compare two objects with a common measurable attribute to see which object has more of/less of the attribute and describe the difference
- K.2.C
count a set of objects up to at least 20 and demonstrate that the last number said tells the number of objects in the set regardless of their arrangement or ord...
- K.2.H
use comparative language to describe two numbers up to 20 presented as written numerals
- 1.2.E
use place value to compare whole numbers up to 120 using comparative language
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