Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group, e.g., by using matching and counting strategies


Learning Targets:

  • I can say which group has more by matching or counting the number of objects in both groups.
  • I can say which group has less by matching or counting the number of objects in both groups.
  • I can say when groups are equal by matching or counting.

Assessment and Instructional Tasks


Task 6b
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Formative Assessments (visit Assessing Student Performance for more information)

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Task Rubric








Common Misconceptions

Students may need to line up the objects and compare them to see which set has more. This is a prerequisite to being able to look at the numerals and know which set is greater. Students are more comfortable when working with more as opposed to less. Using a number line or hundreds chart may help them see numbers that are more or less than another number.


Enrichment

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  • Compare larger numbers beyond 20
  • Compare more than 2 numbers up to 20

Essential Skills and Knowledge (from MSDE Common Core Frameworks)

  • Knowledge of and the ability to apply a solid understanding of cardinality and one-to-one correspondence before beginning to compare sets
  • Ability to use of concrete materials when comparing sets
  • Ability to compare visually, to compare by matching, and to compare by counting