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## Math Expressions Links to Learnzillion Videos

Listed below, in the section for each unit, are links to learnzillion.com. These are links to short video lessons on the mathematical content stated.

The purpose of aligning the Math Expression text to the Learnzillion videos is to provide a resource for students, parents, and teachers. Students, parents, and teachers can quickly find Learnzillion math videos to supplement the Math Expressions text. Math Expressions and Learnzillion are different resources that both support the Utah State Core Standards. Not every lesson from Math Expressions and every standard from the Utah State Core is supported by a Learnzillion video lesson as of this time. More support content will be added as it becomes available.

## Learnzillion.com

## Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7

**Unit 1: Addition and Subtraction Within 20**

### Big Idea 1: Strategies for Addition and Subtraction, lessons 1-9

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Write even numbers as the sum of two equal addends OA.3

Determine whether a group of objects is even or odd by looking at the digit in the ones place OA.3

Understand and explain even-odd number patterns using a number line OA.3

Write an equation to show an even number OA.3

Use the digit in the ones place to determine if a number is even or odd OA.3

Recognize even and odd numbers by forming partners and equal groups OA.3

Write and test equations with two equal addends to prove that the sum will always be equal OA.3

Determine whether a group of objects is even or odd by pairing OA.3

Determine whether a group of objects is even or odd by creating equal groups OA.3

Numbers and Operations in Base Ten 2.NBT

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

### Big Idea 2: Addition and Subtraction Situations, lessons 10-16

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Numbers and Operations in Base Ten 2.NBT

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

### Big Idea 3: More Complex Situations, lessons 17-20

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Write even numbers as the sum of two equal addends OA.3

Determine whether a group of objects is even or odd by looking at the digit in the ones place OA.3

Understand and explain even-odd number patterns using a number line OA.3

Write an equation to show an even number OA.3

Use the digit in the ones place to determine if a number is even or odd OA.3

Recognize even and odd numbers by forming partners and equal groups OA.3

Write and test equations with two equal addends to prove that the sum will always be equal OA.3

Determine whether a group of objects is even or odd by pairing OA.3

Determine whether a group of objects is even or odd by creating equal groups OA.3

**Unit 2: Addition Within 200**

### Big Idea 1: Use Place Value, lessons 1-5

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Numbers and Operations in Base Ten 2.NBT

Understand the value of digits using pictures NBT.1

Draw a visual representation of a 3-digit number NBT.1

Use expanded form to understand place value of 3-digit numbers NBT.1

Combine tens, ones, and hundreds to create numbers NBT.1

Identify patterns when counting by 10s NBT.2

Count objects by 5s, 10s, and 100s NBT.2

Identify number patterns by skip-counting with base ten blocks NBT.2

Identify patterns when counting by 5s NBT.2

Use number patterns to count forwards and backwards NBT.2

Connect skip-counting to repeated addition using number patterns NBT.2

Skip-count by 5s, 10s, and 100s NBT.2

Count money by 5s, 10s, and 100s NBT.2

Identify patterns when counting by 100s NBT.2

Use skip-counting to solve problems NBT.2

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

### Big Idea 2: Add 2-digit Numbers, lessons 6-10

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Numbers and Operations in Base Ten 2.NBT

Understand the value of digits using pictures NBT.1

Draw a visual representation of a 3-digit number NBT.1

Use expanded form to understand place value of 3-digit numbers NBT.1

Combine tens, ones, and hundreds to create numbers NBT.1

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

### Big Idea 3: Money and Fluency for Addition Within 100, lessons 11-14

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Numbers and Operations in Base Ten 2.NBT

Understand the value of digits using pictures NBT.1

Draw a visual representation of a 3-digit number NBT.1

Use expanded form to understand place value of 3-digit numbers NBT.1

Combine tens, ones, and hundreds to create numbers NBT.1

Identify patterns when counting by 10s NBT.2

Count objects by 5s, 10s, and 100s NBT.2

Identify number patterns by skip-counting with base ten blocks NBT.2

Identify patterns when counting by 5s NBT.2

Use number patterns to count forwards and backwards NBT.2

Connect skip-counting to repeated addition using number patterns NBT.2

Skip-count by 5s, 10s, and 100s NBT.2

Count money by 5s, 10s, and 100s NBT.2

Identify patterns when counting by 100s NBT.2

Use skip-counting to solve problems NBT.2

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

**Unit 3: Length and Shapes**

### Big Idea 1: Length and Shapes, lessons 1-5

Operations and Algebraic Thinking 2.OA

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Numbers and Operations in Base Ten 2.NBT

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

### Big Idea 2: Estimate, Measure, and Make Line Plots, lessons 6-8

Numbers and Operations in Base Ten 2.NBT

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

**Unit 4: Subtract 2-Digit Numbers**

### Big Idea 1: Totals of Mixed Coins and Bills, lessons 1-2

Numbers and Operations in Base Ten 2.NBT

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Measurement and Data 2.MD

Count money by drawing pictures MD.8

Add and subtract money using mental math MD.8

Solve money word problems using base ten blocks MD.8

Skip-count by 5s and 10s using a number line MD.8

Create combinations of coins with the same value by drawing pictures MD.8

Solve money problems by drawing pictures MD.8

### Big Idea 2: Multidigit Subtraction Strategies, lessons 3-11

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Numbers and Operations in Base Ten 2.NBT

Understand the value of digits using pictures NBT.1

Draw a visual representation of a 3-digit number NBT.1

Use expanded form to understand place value of 3-digit numbers NBT.1

Combine tens, ones, and hundreds to create numbers NBT.1

Understand the value of a number NBT.1b

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

Measurement and Data 2.MD

Count money by drawing pictures MD.8

Add and subtract money using mental math MD.8

Solve money word problems using base ten blocks MD.8

Skip-count by 5s and 10s using a number line MD.8

Create combinations of coins with the same value by drawing pictures MD.8

Solve money problems by drawing pictures MD.8

### Big Idea 3: Word Problems: Addition and Subtraction Within 100, lessons 12-22

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Numbers and Operations in Base Ten 2.NBT

Understand the value of digits using pictures NBT.1

Draw a visual representation of a 3-digit number NBT.1

Use expanded form to understand place value of 3-digit numbers NBT.1

Combine tens, ones, and hundreds to create numbers NBT.1

Understand the value of a number NBT.1b

Identify patterns when counting by 10s NBT.2

Count objects by 5s, 10s, and 100s NBT.2

Identify number patterns by skip-counting with base ten blocks NBT.2

Identify patterns when counting by 5s NBT.2

Use number patterns to count forwards and backwards NBT.2

Connect skip-counting to repeated addition using number patterns NBT.2

Skip-count by 5s, 10s, and 100s NBT.2

Count money by 5s, 10s, and 100s NBT.2

Identify patterns when counting by 100s NBT.2

Use skip-counting to solve problems NBT.2

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

Measurement and Data 2.MD

Solve length word problems using color tiles MD.5

Compare the length of objects MD.5

Compare lengths of objects using a number line MD.5

Compare lengths of objects by writing an equation MD.5

Solve length word problems using a ruler MD.5

Solve length word problems using a number line MD.5

Compare lengths of objects by creating equal groups MD.5

Solve length word problems using a bar model MD.5

Find unknowns by creating number bonds MD.5

Compare lengths of objects by drawing pictures MD.5

Count money by drawing pictures MD.8

Add and subtract money using mental math MD.8

Solve money word problems using base ten blocks MD.8

Skip-count by 5s and 10s using a number line MD.8

Create combinations of coins with the same value by drawing pictures MD.8

Solve money problems by drawing pictures MD.8

**Unit 5: Time, Graphs, and Word Problems**

### Big Idea 1: Time, lessons 1-2

Numbers and Operations in Base Ten 2.NBT

Identify patterns when counting by 10s NBT.2

Count objects by 5s, 10s, and 100s NBT.2

Identify number patterns by skip-counting with base ten blocks NBT.2

Identify patterns when counting by 5s NBT.2

Use number patterns to count forwards and backwards NBT.2

Connect skip-counting to repeated addition using number patterns NBT.2

Skip-count by 5s, 10s, and 100s NBT.2

Count money by 5s, 10s, and 100s NBT.2

Identify patterns when counting by 100s NBT.2

Use skip-counting to solve problems NBT.2

Measurement and Data 2.MD

Read and record digital time MD.7

Tell time using the hour and minute hands MD.7

Understand the passage of time in terms of units MD.7

Tell time to the nearest 5 minutes using analog and digital clocks MD.7

Tell time using the hour hand MD.7

Distinguish between a.m. and p.m. MD.7

Geometry 2.G

Partition a circle into two, three, or four equal shares G.3

Partition a circle into equal shares G.3

Compare equal shares from different wholes G.3

Count fractions of a whole using fraction strips G.3

Find a unit fraction by dividing a shape into equal shares G.3

Partition rectangles into equal shares multiple ways G.3

### Big Idea 2: Picture Graphs, lessons 3-4

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Measurement and Data 2.MD

Collect data by recording tally marks in a table MD.10

Identify parts of picture graphs MD.10

Solve put together problems using a picture graph MD.10

Solve compare problems using information from a picture graph MD.10

Create picture graphs by organizing data MD.10

Compare picture graphs and bar graphs MD.10

### Big Idea 3: Bar Graphs, lessons 5-9

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Subtract within 20 using 10 frames OA.2

Add within 20 by regrouping on a ten frame OA.2

Subtract by finding the difference on a number line OA.2

Add and subtract within 20 on an open number line OA.2

Use doubles to add and subtract within 20 OA.2

Numbers and Operations in Base Ten 2.NBT

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

Measurement and Data 2.MD

Collect data by recording tally marks in a table MD.10

Identify parts of picture graphs MD.10

Solve put together problems using a picture graph MD.10

Solve compare problems using information from a picture graph MD.10

Create picture graphs by organizing data MD.10

Compare picture graphs and bar graphs MD.10

**Unit 6: 3-Digit Addition and Subtraction**

### Big Idea 1: Understanding Numbers to 1,000, lessons 1-5

Numbers and Operations in Base Ten 2.NBT

Understand the value of digits using pictures NBT.1

Draw a visual representation of a 3-digit number NBT.1

Use expanded form to understand place value of 3-digit numbers NBT.1

Combine tens, ones, and hundreds to create numbers NBT.1

Understand the value of a number NBT.1b

Identify patterns when counting by 10s NBT.2

Count objects by 5s, 10s, and 100s NBT.2

Identify number patterns by skip-counting with base ten blocks NBT.2

Identify patterns when counting by 5s NBT.2

Use number patterns to count forwards and backwards NBT.2

Connect skip-counting to repeated addition using number patterns NBT.2

Skip-count by 5s, 10s, and 100s NBT.2

Count money by 5s, 10s, and 100s NBT.2

Identify patterns when counting by 100s NBT.2

Use skip-counting to solve problems NBT.2

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Mentally subtract 10 or 100 using base ten blocks NBT.8

Add 10 across a hundred using base ten blocks NBT.8

Mentally add or subtract 10 or 100 using expanded form NBT.8

Mentally add 10 or 100 visualizing base ten blocks NBT.8

Mentally add or subtract 10 using a hundreds chart NBT.8

Subtract 10 across a hundred using base ten blocks NBT.8

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

Measurement and Data 2.MD

Count money by drawing pictures MD.8

Add and subtract money using mental math MD.8

Solve money word problems using base ten blocks MD.8

Skip-count by 5s and 10s using a number line MD.8

Create combinations of coins with the same value by drawing pictures MD.8

Solve money problems by drawing pictures MD.8

### Big Idea 2: Adding to 1,000, lessons 6-8

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Numbers and Operations in Base Ten 2.NBT

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

### Big Idea 3: 3-Digit Subtraction, lessons 9-12

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Numbers and Operations in Base Ten 2.NBT

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

### Big Idea 4: 3-Digit Addition and Subtraction, lessons 13-14

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Numbers and Operations in Base Ten 2.NBT

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add within 1000 using base 10 blocks NBT.7

Subtract within 1000 using an open number line NBT.7

Subtract within 1000 using base 10 blocks NBT.7

Add three-digit numbers by composing NBT.7

Subtract within 1000 by decomposing NBT.7

Add three-digit numbers using expanded form NBT.7

Add within 1000 using a number line NBT.7

Add three-digit numbers with base ten blocks NBT.7

Add within 1000 by regrouping base 10 blocks NBT.7

Subtract three-digit numbers using expanded form NBT.7

Subtract three-digit numbers by decomposing NBT.7

Subtract three-digit numbers with a number line NBT.7

Explain an addition number sentence NBT.9

Explain addition using place value NBT.9

Explain subtraction by using knowledge of addition NBT.9

Explain subtraction using place value NBT.9

Explain addition using the commutative and associative properties NBT.9

Explain addition by decomposing numbers NBT.9

Explain a subtraction number sentence NBT.9

Explain subtraction by decomposing numbers NBT.9

**Unit 7: Arrays, Equal Shares, and Adding or Subtracting Lengths**

### Big Idea 1: Arrays and Equal Shares, lessons 1-2

Geometry 2.G

Find the number of same-size squares in a rectangle G.2

Partition rectangles using same-sized squares G.2

Partition a rectangle into rows G.2

Partition rectangles into same-sized squares using toothpicks G.2

Partition rectangles into same-sized squares by creating columns and rows G.2

Partition a rectangle into columns G.2

Partition a circle into two, three, or four equal shares G.3

Partition a circle into equal shares G.3

Compare equal shares from different wholes G.3

Count fractions of a whole using fraction strips G.3

Describe fractions of rectangles G.3

Find a unit fraction by dividing a shape into equal shares G.3

Partition rectangles into equal shares multiple ways G.3

### Big Idea 2: Relate Addition and Subtraction to Length, lessons 3-5

Operations and Algebraic Thinking 2.OA

Write equations to solve word problems OA.1

Solving a multi-step word problem with a bar model OA.1

Understand word problems by creating fill-in-the-blank sentences OA.1

Solve word problems by drawing picture models OA.1

Solve word problem with missing parts by drawing bar models OA.1

Organize information in a multi-step word problem by drawing a bar model OA.1

Numbers and Operations in Base Ten 2.NBT

Subtract by using addition NBT.5

Subtract by using a number line NBT.5

Subtract numbers within 100 using an open number line NBT.5

Decompose and compose numbers NBT.5

Subtract numbers within 100 using base ten blocks NBT.5

Add by using a hundreds chart NBT.5

Add by decomposing numbers NBT.5

Add within 100 using base ten blocks NBT.5

Add within 100 on an open number line NBT.5

Subtract two 2-digit numbers by using addition NBT.5

Add two 2-digit numbers using the commutative and associative properties NBT.5

Subtract by using a hundreds chart NBT.5

Add up to four 2-digit numbers by making a ten NBT.6

Add up to four 2-digit numbers using place value NBT.6

Add up to four 2-digit numbers using the properties of addition NBT.6

Add up to four 2-digit numbers by using addition facts and friendly numbers NBT.6

Measurement and Data 2.MD

Solve length word problems using color tiles MD.5

Compare the length of objects MD.5

Compare lengths of objects using a number line MD.5

Compare lengths of objects by writing an equation MD.5

Solve length word problems using a ruler MD.5

Solve length word problems using a number line MD.5

Compare lengths of objects by creating equal groups MD.5

Solve length word problems using a bar model MD.5

Find unknowns by creating number bonds MD.5

Compare lengths of objects by drawing pictures MD.5https://learnzillion.com/assignments/KG8QZJP