## Contents

Connections to the 3 Curriculum Threads

Featured Standards for Mathematical Practice

## Connections to the 3 Curriculum Threads

Learn more about the 3 Curriculum Threads

**Operations: **This unit builds toward work in Grade 1, when students will solve addition and subtraction compare problems.

**Number: **Students compare language and know they can compare objects that match by using representations of objects, numbers and the counting sequence. Using the words more and less prepares students to make precise comparisons (such as 1 more, 1 less, 2 more, 2 less).

**Equivalence: **Students compare objects and numbers using the phrases “greater than”, “less than”, and “equal to”.

## Content Standards Addressed

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### K.CC.C: Compare numbers.

**K.CC.C.6: **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.

**K.CC.C.7: **Compare two numbers between 1 and 10 presented as written numerals.

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## Featured Standards for Mathematical Practice

**S.MP.2. Reason abstractly and quantitatively.** Students make sense of the quantities of numbers and their relationship. They will begin to connect the quantity to the written numeral.

**S.MP.6. Attend to precision.** Kindergarten students will begin to explain their thinking in words and use precise comparative mathematical language. The terms students should learn to use with increasing precision with this cluster are greater, more, less, fewer, equal, same amount, compare.

real-world pictures

## Major Representations Used

sets or groups of objects (tiles, unifix cubes, countable objects)

real-world pictures

five and ten frames, numeral roll, number cards

fingers, dice

## Common Misconceptions

- Students may have trouble accurately counting a quantity of objects or keeping track of how many they have. The unit will review how to count accurately and how to count out a group or set of objects accurately.
- Students have difficulty identifying which group has a greater number of objects in a visual representation.
- Some students struggle to accurately identify which written numeral is larger. This unit encourages students to use manipulatives, drawings or numbers lines to compare numbers.