 # Common Core Grade 2 Math (Worksheets, Homework, Solutions, Lesson Plans)

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Common Core Math Video Lessons, Math Worksheets and Games for all grades

The following lesson plans and worksheets are from the New York State Education Department Common Core-aligned educational resources.

These Lesson Plans and Worksheets are divided into eight modules.

### Grade 2 Homework, Lesson Plans and Worksheets

Topics and Objectives (Module 1)
A. Foundations for Addition and Subtraction Within 20
Standard: 2.OA.1, 2.OA.2
Days: 2

Module 1 Overview

Topic A Overview

Lesson 1: Make number bonds of ten. (Video)

Lesson 2: Add to Multiple of Ten (Video)
Make number bonds through ten with a subtraction focus and apply to one-step word problems. (Video)
B. Mental Strategies for Addition and Subtraction Within 20
Standard: 2.OA.1, 2.OA.2
Days: 3

Topic B Overview

Lesson 3: Add and Subtract Like Units. (Video)
Make a ten to add within 20. (Video)

Lesson 4: Make a ten to add and subtract within 20. (Video)

Lesson 5: Make a ten to add within 100. (Video)
Decompose to subtract from a ten when subtracting within 20 and apply to one-step word problems. (Video)
C. Strategies for Addition and Subtraction Within 100
Standard: 2.OA.1, 2.NBT.5, 2.OA.2
Days: 3

Topic C Overview

Lesson 6: Subtract numbers from multiples of 10 (Video)
Add and subtract within multiples of ten based on understanding place value and basic facts. (Video)

Lesson 7: Take from 10 within 20 (Video)
Add within 100 using properties of addition to make a ten. (Video)

Lesson 8: Decompose to subtract from a ten when subtracting within 100 and apply to one-step word problems. (Video)
End-of-Module Assessment: Topics A-C (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 10

Topics and Objectives (Module 2)
A. Understand Concepts About the Ruler
Standard: 2.MD.1
Days: 3

Module 2 Overview

Topic A Overview

Lesson 1: Connect measurement with physical units by using multiple copies of the same physical unit to measure. (Video)

Lesson 2: Use iteration with one physical unit to measure. (Video)

Lesson 3: Apply concepts to create unit rulers and measure lengths using unit rulers. (Video)
B. Measure and Estimate Length Using Different Measurement Tools
Standard: 2.MD.3
Days: 2

Topic B Overview

Lesson 4: Measure various objects using centimeter rulers and meter sticks. (Video)

Lesson 5: Develop estimation strategies by applying prior knowledge of length and using mental benchmarks. (Video)
C. Measure and Compare Lengths Using Different Length Units
Standard: 2.MD.1, 2.MD.2, 2.MD.4
Days: 2

Topic C Overview

Lesson 6: Measure and compare lengths using centimeters and meters. (Video)

Lesson 7: Measure and compare lengths using standard metric length units and non-standard lengths units; relate measurement to unit size. (Video)
D. Relate Addition and Subtraction to Length
Standard: 2.MD.5, 2.MD.6, 2.MD.1, 2.MD.3, 2.MD.4
Days: 3

Topic D Overview

Lesson 8: Solve addition and subtraction word problems using the ruler as a number line. (Video)

Lesson 9: Concrete to abstract: measure lengths of string using measurement tools; represent length with tape diagrams to represent and compare the lengths. (Video)

Lesson 10: Apply conceptual understanding of measurement by solving two-step word problems (Video)
End-of-Module Assessment: Topics A-D (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 12

Topics and Objectives Module 3)
A. Forming Base Ten Units of Ten, a Hundred, and a Thousand
Standard: 2.NBT.1
Days: 1

Module 3 Overview

Topic A Overview

Lesson 1: Bundle and count ones, tens, and hundreds to 1,000. (Video)
B. Understanding Place Value Units of One, Ten, and a Hundred
Standard: 2.NBT.1, 2.NBT.2
Days: 2

Topic B Overview

Lesson 2: Count up and down between 100 and 220 using ones and tens. (Video)

Lesson 3: Count up and down between 90 and 1,000 using ones, tens, and hundreds. (Video)
C. Three-Digit Numbers in Unit, Numeral, Expanded, and Word Forms
Standard: 2.NBT.3, 2.NBT.1
Days: 4

Topic C Overview

Lesson 4: Count up to 1,000 on the place value chart. (Video)

Lesson 5: Write base ten three-digit numbers in unit form; show the value of each digit. (Video)

Lesson 6: Write base ten numbers in expanded form. (Video)

Lesson 7: Write, read, and relate base ten numbers in all forms. (Video)
D. Modeling Base Ten Numbers Within 1,000 with Money
Standard: 2.NBT.1, 2.NBT.2, 2.NBT.3, 2.MD.8
Days: 3

Topic D Overview

Lesson 8: Count the total value of \$1, \$10, and \$100 bills up to \$1,000. (Video)

Lesson 9: Count from \$10 to \$1,000 on the place value chart and the empty number line. (Video)

Lesson 10: Explore \$1,000. How many \$10 bills can we change for a thousand dollar bill? (Video)
Mid-Module Assessment: Topics A-D (assessment ½ day, return ½ day, remediation or further applications 1 day)
E. Modeling Numbers Within 1,000 with Place Value Disks
Standard: 2.NBT.3, 2.NBT.4
Days: 5

Topic E Overview

Lesson 11: Count the total value of ones, tens, and hundreds with place value disks. (Video)

Lesson 12: Change 10 ones for 1 ten, 10 tens for 1 hundred, and 10 hundreds for 1 thousand. (Video)

Lesson 13: Read and write numbers within 1,000 after modeling with number disks. (Video)

Lesson 14: Model numbers with more than 9 ones or 9 tens; write in expanded, unit, numeral, and word forms. (Video)

Lesson 15: Explore a situation with more than 9 groups of 10. (Video)
F. Comparing Two Three-Digit Numbers
Standard: 2.NBT.4
Days: 3

Topic F Overview

Lesson 16: Compare two three-digit numbers using <, >, and =. (Video)

Lesson 17: Compare two three-digit numbers using <, >, and = when there are more than 9 ones or 9 tens. (Video)

Lesson 18: Order numbers in different forms. (Optional) (Video)
G. Finding 1, 10, and 100 More or Less than a Number
Standard: 2.OA.1, 2.NBT.8
Days: 3

Topic G Overview

Lesson 19: Model and use language to tell about 1 more and 1 less, 10 more and 10 less, and 100 more and 100 less. (Video)

Lesson 20: Model 1 more and 1 less, 10 more and 10 less, and 100 more and 100 less when changing the hundreds place. (Video)

Lesson 21:Complete a pattern counting up and down. (Video)
End-of-Module Assessment: Topics A-G (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 25

Topics and Objectives (Module 4)
A. Sums and Differences Within 100
Standard: 2.OA.1, 2.NBT.5, 2.NBT.8, 2.NBT.9
Days: 5

Module 4 Overview

Topic A Overview

Lesson 1: Relate 1 more, 1 less, 10 more, and 10 less to addition and subtraction of 1 and 10. (Video)

Lesson 2: Add and subtract multiples of 10 including counting on to subtract. (Video)

Lesson 3, Lesson 4: Add and subtract multiples of 10 and some ones within 100. (Video)

Lesson 5: Solve one- and two-step word problems within 100 using strategies based on place value. (Video)
B. Strategies for Composing a Ten
Standard: 2. NBT.7, 2.NBT.9, 2.OA.1, 2.NBT.5
Days: 5

Topic B Overview

Lesson 6: Use manipulatives to represent the composition of 10 ones as 1 ten with two-digit addends. (Video)

Lesson 7: Relate addition using manipulatives to a written vertical method. (Video)

Lesson 8: Use math drawings to represent the composition and relate drawings to a written method. (Video)

Lesson 9, Lesson 10: Use math drawings to represent the composition when adding a two-digit to a three-digit addend. (Video)
C. Strategies for Decomposing a Ten
Standard: 2.OA.1, 2.NBT.7, 2.NBT.9, 2.NBT.5
Days: 6

Topic C Overview

Lesson 11: Represent subtraction with and without the decomposition of 1 ten as 10 ones with manipulatives. (Video)

Lesson 12: Relate manipulative representations to a written method. (Video)

Lesson 13: Use math drawings to represent subtraction with and without decomposition and relate drawings to a written method. (Video)

Lesson 14, Lesson 15: Represent subtraction with and without the decomposition when there is a three-digit minuend. (Video)

Lesson 16: Solve one- and two-step word problems within 100 using strategies based on place value. (Video)
Mid-Module Assessment: Topics A-C
D. Strategies for Composing Tens and Hundreds
Standard: 2.NBT.6, 2.NBT.7, 2.NBT.8, 2.NBT.9
Days: 6

Topic D Overview

Lesson 17: Use mental strategies to relate compositions of 10 tens as 1 hundred to 10 ones as 1 ten.(Video)

Lesson 18: Use manipulatives to represent additions with two compositions. (Video)

Lesson 19: Relate manipulative representations to a written method. (Video)

Lesson 20, Lesson 21: Use math drawings to represent additions with up to two compositions and relate drawings to a written method. (Video)

Lesson 22: Solve additions with up to four addends with totals within 200 with and without two compositions of larger units. (Video)
E. Strategies for Decomposing Tens and Hundreds
Standard: 2.NBT.7, 2.NBT.9
Days: 6

Topic E Overview

Lesson 23: Use number bonds to break apart three-digit minuends and subtract from the hundred. (Video)

Lesson 24: Use manipulatives to represent subtraction with decompositions of 1 hundred as 10 tens and 1 ten as 10 ones. (Video)

Lesson 25: Relate manipulative representations to a written method. (Video)

Lesson 26: Use math drawings to represent subtraction with up to two decompositions and relate drawings to a written method. (Video)

Lesson 27, Lesson 28: Subtract from 200 and from numbers with zeros in the tens place. (Video)
F. Student Explanations of Written Methods
Standard: 2.OA.1, 2.NBT.7, 2.NBT.9
Days: 3

Topic F Overview

Lesson 29: Use and explain the totals below written method using words, math drawings, and numbers. (Video)

Lesson 30: Compare totals below to new groups below as written methods. (Video)

Lesson 31: Solve two-step word problems within 100. (Video)
End-of-Module Assessment: Topics A-F (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 35

Topics and Objectives (Module 5)
A. Strategies for Adding and Subtracting Within 1,000
Standard: 2.NBT.7, 2.NBT.8, 2.NBT.9
Days: 7

Module 5 Overview

Topic A Overview

Lesson 1: Relate 10 more, 10 less, 100 more, and 100 less to addition and subtraction of 10 and 100. (Video)

Lesson 2: Add and subtract multiples of 100 including counting on to subtract. (Video)

Lesson 3: Add multiples of 100 and some tens within 1,000. (Video)

Lesson 4: Subtract multiples of 100 and some tens within 1,000. (Video)

Lesson 5: Use the associative property to make a hundred in one addend. (Video)

Lesson 6: Use the associative property to subtract from three-digit numbers and verify solutions with addition. (Video)

Lesson 7: Share and critique solution strategies for varied addition and subtraction problems within 1,000. (Video)
B. Strategies for Composing Tens and Hundreds Within 1,000
Standard: 2.NBT.7, 2.NBT.9
Days: 5

Topic B Overview

Lesson 8, Lesson 9: Relate manipulative representations to the addition algorithm. (Video)

Lesson 10, Lesson 11: Use math drawings to represent additions with up to two compositions and relate drawings to the addition algorithm. (Video)

Lesson 12: Choose and explain solution strategies and record with a written addition method (Video).
Mid-Module Assessment: Topics A-B (assessment ½ day, return ½ day, remediation or further applications 1 day)
C. Strategies for Decomposing Tens and Hundreds Within 1,000
Standard: 2.NBT.7, 2.NBT.9
Days: 6

Topic C Overview

Lesson 13: Relate manipulative representations to the subtraction algorithm, and use addition to explain why the subtraction method works. (Video)

Lesson 14, Lesson 15: Use math drawings to represent subtraction with up to two decompositions, relate drawings to the algorithm, and use addition to explain why the subtraction method works. (Video)

Lesson 16, Lesson 17: Subtract from multiples of 100 and from numbers with zero in the tens place. (Video)

Lesson 18: Apply and explain alternate methods for subtracting from multiples of 100 and from numbers with zero in the tens place. (Video)
D. Student Explanations for Choice of Solution Methods
Standard: 2.NBT.7, 2.NBT.8, 2.NBT.9
Days: 2

Topic D Overview

Lesson 19, Lesson 20: Choose and explain solution strategies and record with a written addition or subtraction method. (Video)
End-of-Module Assessment: Topics A-D (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 24
Topics and Objectives (Module 6)
A. Formation of Equal Groups
Standard: 2.OA.4, 2.NBT.2, 2.NBT.6
Days: 4

Module 6 Overview

Topic A Overview

Lesson 1: Use manipulatives to create equal groups. (Video)

Lesson 2, Lesson 3: Use math drawings to represent equal groups, and relate to repeated addition. (Video) (Video)

Lesson 4: Represent equal groups with tape diagrams, and relate to repeated addition. (Video)
B. Arrays and Equal Groups
Standard: 2.OA.4, 2.NBT.2
Days: 5

Topic B Overview

Lesson 5: Compose arrays from rows and columns, and count to find the total using objects. (Video)

Lesson 6: Decompose arrays into rows and columns, and relate to repeated addition. (Video)

Lesson 7: Represent arrays and distinguish rows and columns using math drawings. (Video)

Lesson 8: Create arrays using square tiles with gaps. (Video)

Lesson 9: Solve word problems involving addition of equal groups in rows and columns. (Video)
Mid-Module Assessment: Topics A-B (assessment ½ day, return ½ day, remediation or further applications 1 day)
C. Rectangular Arrays as a Foundation for Multiplication and Division
Standard: 2.OA.4, 2.G.2
Days: 7

Topic C Overview

Lesson 10, Lesson 11: Use square tiles to compose a rectangle, and relate to the array model. (Video)

Lesson 12: Use math drawings to compose a rectangle with square tiles. (Video)

Lesson 13: Use square tiles to decompose a rectangle. (Video)

Lesson 14: Use scissors to partition a rectangle into same-size squares, and compose arrays with the squares. (Video)

Lesson 15: Use math drawings to partition a rectangle with square tiles, and relate to repeated addition. (Video)

Lesson 16: Use grid paper to create designs to develop spatial structuring. (Video)
D. The Meaning of Even and Odd Numbers
Standard: 2.OA.3
Days: 4

Topic D Overview

Lesson 17: Relate doubles to even numbers, and write number sentences to express the sums. (Video)

Lesson 18: Pair objects and skip-count to relate to even numbers. (Video)

Lesson 19: Investigate the pattern of even numbers: 0, 2, 4, 6, and 8 in the ones place, and relate to odd numbers. (Video)

Lesson 20: Use rectangular arrays to investigate odd and even numbers. (Video)
End-of-Module Assessment: Topics A-D (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 24
Topics and Objectives (Module 7)
A. Problem Solving with Categorical Data
Standard: 2.MD.10, 2.MD.6
Days: 5

Module 7 Overview

Topic A Overview

Lesson 1: Sort and record data into a table using up to four categories; use category counts to solve word problems. (Video)

Lesson 2: Draw and label a picture graph to represent data with up to four categories. (Video)

Lesson 3: Draw and label a bar graph to represent data; relate the count scale to the number line. (Video)

Lesson 4: Draw a bar graph to represent a given data set. (Video)

Lesson 5: Solve word problems using data presented in a bar graph. (Video)
B. Problem Solving with Coins and Bills
Standard: 2.NBT.5, 2.MD.8, 2.NBT.2, 2.NBT.6
Days: 8

Topic B Overview

Lesson 6: Recognize the value of coins and count up to find their total value. (Video)

Lesson 7: Solve word problems involving the total value of a group of coins. (Video)

Lesson 8: Solve word problems involving the total value of a group of bills. (Video)

Lesson 9: Solve word problems involving different combinations of coins with the same total value. (Video)

Lesson 10: Use the fewest number of coins to make a given value. (Video)

Lesson 11: Use different strategies to make \$1 or make change from \$1. (Video)

Lesson 12: Solve word problems involving different ways to make change from \$1. (Video)

Lesson 13: Solve two-step word problems involving dollars or cents with totals within \$100 or \$1. (Video)
Mid-Module Assessment: Topics A-B (assessment ½ day, return ½ day, remediation or further applications 1 day)
C. Creating an Inch Ruler
Standard: 2.MD.1
Days: 2

Topic C Overview

Lesson 14: Connect measurement with physical units by using iteration with an inch tile to measure. (Video)

Lesson 15: Apply concepts to create inch rulers; measure lengths using inch rulers. (Video)
D. Measuring and Estimating Length Using Customary and Metric Units
Standard: 2.MD.1, 2.MD.2, 2.MD.3, 2.MD.4
Days: 4

Topic D Overview

Lesson 16: Measure various objects using inch rulers and yardsticks. (Video)

Lesson 17: Develop estimation strategies by applying prior knowledge of length and using mental benchmarks. (Video)

Lesson 18: Measure an object twice using different length units and compare; relate measurement to unit size. (Video)

Lesson 19: Measure to compare the differences in lengths using inches, feet, and yards. (Video)
E. Problem Solving with Customary and Metric Units
Standard: 2.MD.5, 2.MD.6, 2.NBT.2, 2.NBT.4, 2.NBT.5
Days: 3

Topic E Overview

Lesson 20: Solve two-digit addition and subtraction word problems involving length by using tape diagrams and writing equations to represent the problem. (Video)

Lesson 21: Identify unknown numbers on a number line diagram by using the distance between numbers and reference points. (Video)

Lesson 22: Represent two-digit sums and differences involving length by using the ruler as a number line. (Video)
F. Displaying Measurement Data
Standard: 2.MD.6, 2.MD.9, 2.MD.1, 2.MD.5
Days: 4

Topic F Overview

Lesson 23: Collect and record measurement data in a table; answer questions and summarize the data set. (Video)

Lesson 24: Draw a line plot to represent the measurement data; relate the measurement scale to the number line. (Video)

Lesson 25, Lesson 26: Draw a line plot to represent a given data set; answer questions and draw conclusions based on measurement data. (Video)
End-of-Module Assessment: Topics A-F (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 30
Topics and Objectives (Module 8)
A. Attributes of Geometric Shapes
Standard: 2.G.1, 2.MD.1
Days: 5

Module 8 Overview

Topic A Overview

Lesson 1: Describe two-dimensional shapes based on attributes. (Video)

Lesson 2: Build, identify, and analyze two-dimensional shapes with specified attributes. (Video)

Lesson 3: Use attributes to draw different polygons including triangles, quadrilaterals, pentagons, and hexagons. (Video)

Lesson 4: Use attributes to identify and draw different quadrilaterals including rectangles, rhombuses, parallelograms, and trapezoids. (Video)

Lesson 5: Relate the square to the cube, and describe the cube based on attributes. (Video)
B. Composite Shapes and Fraction Concepts
Standard: 2.G.3, 2.G.1
Days: 3

Topic B Overview

Lesson 6: Combine shapes to create a composite shape; create a new shape from composite shapes. (Video)

Lesson 7, Lesson 8: Interpret equal shares in composite shapes as halves, thirds, and fourths. (Video)
Mid-Module Assessment: Topics A-B (assessment ½ day, return ½ day, remediation or further applications 1 day)
C. Halves, Thirds, and Fourths of Circles and Rectangles
Standard: 2.G.3, 2.G.1
Days: 4

Topic C Overview

Lesson 9, Lesson 10: Partition circles and rectangles into equal parts, and describe those parts as halves, thirds, or fourths. (Video)

Lesson 11: Describe a whole by the number of equal parts including 2 halves, 3 thirds, and 4 fourths. (Video)

Lesson 12: Recognize that equal parts of an identical rectangle can have different shapes. (Video)
D. Application of Fractions to Tell Time
Standard: 2.MD.7, 2.G.3, 2.NBT.2, 2.NBT.5, 2.NBT.6
Days: 4

Topic D Overview

Lesson 13: Construct a paper clock by partitioning a circle into halves and quarters, and tell time to the half hour or quarter hour. (Video)

Lesson 14: Tell time to the nearest five minutes. (Video)

Lesson 15: Tell time to the nearest five minutes; relate a.m. and p.m. to time of day. (Video)

Lesson 16: Solve elapsed time problems involving whole hours and a half hour. (Video)
End-of-Module Assessment: Topics A-D (assessment ½ day, return ½ day, remediation or further applications 1 day)
Total Number of Instructional Days: 20

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