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Separating Parts with Objects Up to 10: Decomposing Sets

K.CC.A.1

Number sequences up to 10

Number Sequences — Up to 10

Number Sequences — Up to 20

Counting up to 20

Before, After, Between — Up to 20

Count Objects — Up to 20

Counting Forward and Backward — Up to 20

Listen to Number — Up to 20

Next Number — Up to 20

Number Lines — Up to 20

Number to Word Name — Up to 20

One More or Less — Up to 20

Tally Marks — Up to 20

Count Up or Down — Up to 20

Word Name to Number — Up to 20

Numbers After — Up to 20

Count Backwards — Up to 20

Numbers Before — Up to 20

Numbers Between — Up to 20

Count Objects — Up to 10

Count Down — Up to 20 

Count Forwards — Up to 20

Matching Objects to Numbers — Up to 10

Matching Objects to Numbers — Up to 20

Next Number — Up to 10

One Less — Up to 20

One More — Up to 20

Represent Numbers — Up to 10

Count Up — Up to 20 

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K.CC.A.2

Counting forward and backward

Counting Backwards — Up to 10

Counting Forward and Backward — Up to 10

Counting Forwards — Up to 10

Count Backwards — Up to 10

Count Forwards — Up to 10

K.CC.A.3

Naming numbers up to 10

Number to Word Name — Up to 10

Word Name to Number — Up to 10

K.CC.B.4

Counting objects using numbers up to 5

Represent Numbers — Up to 5

Matching objects with numbers up to 5

Match Objects to Numbers — Up to 5

Matching Objects to Numbers — Up to 5

Listening to numbers up to 5

Listen to Number — Up to 5

K.CC.B.5

Counting numbers using objects up to 5

Count Objects — Up to 5

Tally marks up to 10

Tally Marks — Up to 10

K.CC.C.6

Fewer or more

Comparing two numbers

Comparing Two Numbers

K.CC.C.7

Comparing three numbers

Comparing Three Numbers

K.G.A.1

Inside and Outside

Above and Below

Beside and next to

Left, Middle, Right

Top, Middle, Bottom

K.G.A.2

Name and select the 2D shape

Identify the Shape

Name the Shape

Name and select the 3D shape

Identify the 3D Shape

Name the 3D Shape

K.G.A.3

Compare 2D and 3D shapes

K.G.B.4

Count and compare sides and corners

Count the Corners

Count the Sides

Shapes of everyday objects

What shapes are the same and different?

K.G.B.5

Compose 2D shapes

Identify shapes traced from solids

K.MD.A.1

Linear height (tall and short)

Width (wide and narrow)

Lengths (long and short)

Capacity (holds more, holds less)

K.MD.A.2

Mass (light and heavy)

Measuring using objects

K.MD.B.3

Classify and sort by shape

Classify and sort

Sort and count shapes into a Venn diagram

K.NBT.A.1

Counting up or down up to 10

Count Up or Down — Up to 10 

Count Down — Up to 10 

Count Up — Up to 10 

Number lines up to 10

Number Lines — Up to 10

K.OA.A.1

Combining together with objects up to 5

Add By Objects — Up to 5

Combining together with objects up to 10

Add By Objects — Up to 10

Add the Dots — Up to 10

Add the Fruit — Up to 10

Taking away with objects up to 5

Subtract By Objects — Up to 5

Taking away with objects up to 10

Subtract By Objects — Up to 10

K.OA.A.2

Addition word problems up to 5

Addition Word Problems — Up to 5

Addition word problems up to 10

Addition Word Problems — Up to 10

Subtraction word problems up to 5

Subtraction Word Problems — Up to 5

Subtraction word problems up to 10

Subtraction Word Problems — Up to 10

K.OA.A.3

Separating parts with objects up to 5

Add By Its Parts — Up to 5

Separating parts with objects up to 10

Add By Its Parts — Up to 10

K.OA.A.4

Adding with digits up to 10

Add By Digits — Up to 10

Add the Digits — Up to 10

Adding or taking one up to 10

One More or Less — Up to 10

One Less — Up to 10

One More — Up to 10

K.OA.A.5

Adding with digits up to 5

Add By Digits — Up to 5

Adding one up to 5

One More — Up to 5

Taking away one up to 5

One Fewer — Up to 5

One Less — Up to 5

Parent Assignments

Challenge Zone

Foundation Review

Kindergarten Math

sample

math

Intro: Separating Parts With Objects Up To 10

Splitting numbers into two parts (Part-Part-Whole)

This kindergarten topic shows how a set of up to 10 objects can be separated into two smaller groups. Students use counters, pictures, and simple diagrams to see that one number can break apart into many different pairs of parts, laying the groundwork for subtraction and number decomposition.

Separating Parts with Objects | StudyPug

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Overview

Separating Parts with Objects Up to 10

What You'll Learn

Split a group of up to 10 objects into two smaller parts using counters or pictures.

Recognize that one whole number, such as \( 7 \), can break apart into several different pairs, like \( 3 + 4 \) or \( 2 + 5 \).

Use a part-part-whole picture to see how the two separated groups relate back to the original total.

Count each part after separating to check that the parts still add up to the whole, for example \( 4 + 3 = 7 \).

Connect separating parts to later subtraction ideas by noticing that removing one part leaves the other part behind.

What You'll Practice

Choosing sentences that match pictures showing separated groups

Working with visual models of numbers broken into parts

Identifying correct part-part relationships up to 10

Why This Matters

This Unit Includes

1 Video lesson

Practice exercises

Learning resources

Skills

Number Sense

Part-Part-Whole

Addition

Decomposing Numbers

Visual Models