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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.

Topics and Objectives (Module 1) |
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A. Foundations for Addition and Subtraction Within 20Standard: 2.OA.1, 2.OA.2 Days: 2 Module 1 Overview Topic A Overview Lesson 1: Make number bonds of ten. (Video Lesson) Lesson 2: Add to Multiple of Ten (Video Lesson) Make number bonds through ten with a subtraction focus and apply to one-step word problems. (Video Lesson) |

B. Mental Strategies for Addition and Subtraction Within 20Standard: 2.OA.1, 2.OA.2 Days: 3 Topic B Overview Lesson 3: Add and Subtract Like Units. (Video Lesson) Make a ten to add within 20. (Video Lesson) Lesson 4: Make a ten to add and subtract within 20. (Video Lesson) Lesson 5: Make a ten to add within 100. (Video Lesson) Decompose to subtract from a ten when subtracting within 20 and apply to one-step word problems. (Video Lesson) |

C. Strategies for Addition and Subtraction Within 100Standard: 2.OA.1, 2.NBT.5, 2.OA.2 Days: 3 Topic C Overview Lesson 6: Subtract numbers from multiples of 10 (Video Lesson) Add and subtract within multiples of ten based on understanding place value and basic facts. (Video Lesson) Lesson 7: Take from 10 within 20 (Video Lesson) Add within 100 using properties of addition to make a ten. (Video Lesson) Lesson 8: Decompose to subtract from a ten when subtracting within 100 and apply to one-step word problems. (Video Lesson) |

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) |
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A. Understand Concepts About the RulerStandard: 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) Lesson 2: Use iteration with one physical unit to measure. (Video Lesson) Lesson 3: Apply concepts to create unit rulers and measure lengths using unit rulers. (Video Lesson) |

B. Measure and Estimate Length Using Different Measurement ToolsStandard: 2.MD.3 Days: 2 Topic B Overview Lesson 4: Measure various objects using centimeter rulers and meter sticks. (Video Lesson) Lesson 5: Develop estimation strategies by applying prior knowledge of length and using mental benchmarks. (Video Lesson) |

C. Measure and Compare Lengths Using Different Length UnitsStandard: 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) Lesson 7: Measure and compare lengths using standard metric length units and non-standard lengths units; relate measurement to unit size. (Video Lesson) |

D. Relate Addition and Subtraction to LengthStandard: 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) 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) Lesson 10: Apply conceptual understanding of measurement by solving two-step word problems (Video Lesson) |

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) |
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A. Forming Base Ten Units of Ten, a Hundred, and a ThousandStandard: 2.NBT.1 Days: 1 Module 3 Overview Topic A Overview Lesson 1: Bundle and count ones, tens, and hundreds to 1,000. (Video Lesson) |

B. Understanding Place Value Units of One, Ten, and a HundredStandard: 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) Lesson 3: Count up and down between 90 and 1,000 using ones, tens, and hundreds. (Video Lesson) |

C. Three-Digit Numbers in Unit, Numeral, Expanded, and Word FormsStandard: 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) Lesson 5: Write base ten three-digit numbers in unit form; show the value of each digit. (Video Lesson) Lesson 6: Write base ten numbers in expanded form. (Video Lesson) Lesson 7: Write, read, and relate base ten numbers in all forms. (Video Lesson) |

D. Modeling Base Ten Numbers Within 1,000 with MoneyStandard: 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) Lesson 9: Count from $10 to $1,000 on the place value chart and the empty number line. (Video Lesson) Lesson 10: Explore $1,000. How many $10 bills can we change for a thousand dollar bill? (Video Lesson) |

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 DisksStandard: 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) Lesson 12: Change 10 ones for 1 ten, 10 tens for 1 hundred, and 10 hundreds for 1 thousand. (Video Lesson) Lesson 13: Read and write numbers within 1,000 after modeling with number disks. (Video Lesson) Lesson 14: Model numbers with more than 9 ones or 9 tens; write in expanded, unit, numeral, and word forms. (Video Lesson) Lesson 15: Explore a situation with more than 9 groups of 10. (Video Lesson) |

F. Comparing Two Three-Digit NumbersStandard: 2.NBT.4 Days: 3 Topic F Overview Lesson 16: Compare two three-digit numbers using <, >, and =. (Video Lesson) Lesson 17: Compare two three-digit numbers using <, >, and = when there are more than 9 ones or 9 tens. (Video Lesson) Lesson 18: Order numbers in different forms. (Optional) (Video Lesson) |

G. Finding 1, 10, and 100 More or Less than a NumberStandard: 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) 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) Lesson 21:Complete a pattern counting up and down. (Video Lesson) |

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) |
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A. Sums and Differences Within 100Standard: 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) Lesson 2: Add and subtract multiples of 10 including counting on to subtract. (Video Lesson) Lesson 3, Lesson 4: Add and subtract multiples of 10 and some ones within 100. (Video Lesson) Lesson 5: Solve one- and two-step word problems within 100 using strategies based on place value. (Video Lesson) |

B. Strategies for Composing a TenStandard: 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) Lesson 7: Relate addition using manipulatives to a written vertical method. (Video Lesson) Lesson 8: Use math drawings to represent the composition and relate drawings to a written method. (Video Lesson) Lesson 9, Lesson 10: Use math drawings to represent the composition when adding a two-digit to a three-digit addend. (Video Lesson) |

C. Strategies for Decomposing a TenStandard: 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) Lesson 12: Relate manipulative representations to a written method. (Video Lesson) Lesson 13: Use math drawings to represent subtraction with and without decomposition and relate drawings to a written method. (Video Lesson) Lesson 14, Lesson 15: Represent subtraction with and without the decomposition when there is a three-digit minuend. (Video Lesson) Lesson 16: Solve one- and two-step word problems within 100 using strategies based on place value. (Video Lesson) |

Mid-Module Assessment: Topics A-C |

D. Strategies for Composing Tens and HundredsStandard: 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) Lesson 18: Use manipulatives to represent additions with two compositions. (Video Lesson) Lesson 19: Relate manipulative representations to a written method. (Video Lesson) Lesson 20, Lesson 21: Use math drawings to represent additions with up to two compositions and relate drawings to a written method. (Video Lesson) Lesson 22: Solve additions with up to four addends with totals within 200 with and without two compositions of larger units. (Video Lesson) |

E. Strategies for Decomposing Tens and HundredsStandard: 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) Lesson 24: Use manipulatives to represent subtraction with decompositions of 1 hundred as 10 tens and 1 ten as 10 ones. (Video Lesson) Lesson 25: Relate manipulative representations to a written method. (Video Lesson) Lesson 26: Use math drawings to represent subtraction with up to two decompositions and relate drawings to a written method. (Video Lesson) Lesson 27, Lesson 28: Subtract from 200 and from numbers with zeros in the tens place. (Video Lesson) |

F. Student Explanations of Written MethodsStandard: 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)Lesson 30: Compare totals below to new groups below as written methods. (Video Lesson)Lesson 31: Solve two-step word problems within 100. (Video Lesson) |

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) |
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A. Strategies for Adding and Subtracting Within 1,000Standard: 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) Lesson 2: Add and subtract multiples of 100 including counting on to subtract. (Video Lesson) Lesson 3: Add multiples of 100 and some tens within 1,000. (Video Lesson) Lesson 4: Subtract multiples of 100 and some tens within 1,000. (Video Lesson) Lesson 5: Use the associative property to make a hundred in one addend. (Video Lesson) Lesson 6: Use the associative property to subtract from three-digit numbers and verify solutions with addition. (Video Lesson) Lesson 7: Share and critique solution strategies for varied addition and subtraction problems within 1,000. (Video Lesson) |

B. Strategies for Composing Tens and Hundreds Within 1,000Standard: 2.NBT.7, 2.NBT.9 Days: 5 Topic B Overview Lesson 8, Lesson 9: Relate manipulative representations to the addition algorithm. (Video Lesson) Lesson 10, Lesson 11: Use math drawings to represent additions with up to two compositions and relate drawings to the addition algorithm. (Video Lesson) Lesson 12: Choose and explain solution strategies and record with a written addition method (Video Lesson). |

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 1,000Standard: 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) 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) Lesson 16, Lesson 17: Subtract from multiples of 100 and from numbers with zero in the tens place. (Video Lesson) Lesson 18: Apply and explain alternate methods for subtracting from multiples of 100 and from numbers with zero in the tens place. (Video Lesson) |

D. Student Explanations for Choice of Solution MethodsStandard: 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 Lesson) |

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) |
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A. Formation of Equal GroupsStandard: 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) Lesson 2, Lesson 3: Use math drawings to represent equal groups, and relate to repeated addition. (Video Lesson) (Video Lesson) Lesson 4: Represent equal groups with tape diagrams, and relate to repeated addition. (Video Lesson) |

B. Arrays and Equal GroupsStandard: 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) Lesson 6: Decompose arrays into rows and columns, and relate to repeated addition. (Video Lesson) Lesson 7: Represent arrays and distinguish rows and columns using math drawings. (Video Lesson) Lesson 8: Create arrays using square tiles with gaps. (Video Lesson) Lesson 9: Solve word problems involving addition of equal groups in rows and columns. (Video Lesson) |

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 DivisionStandard: 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) Lesson 12: Use math drawings to compose a rectangle with square tiles. (Video Lesson) Lesson 13: Use square tiles to decompose a rectangle. (Video Lesson) Lesson 14: Use scissors to partition a rectangle into same-size squares, and compose arrays with the squares. (Video Lesson) Lesson 15: Use math drawings to partition a rectangle with square tiles, and relate to repeated addition. (Video Lesson) Lesson 16: Use grid paper to create designs to develop spatial structuring. (Video Lesson) |

D. The Meaning of Even and Odd NumbersStandard: 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) Lesson 18: Pair objects and skip-count to relate to even numbers. (Video Lesson) 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) Lesson 20: Use rectangular arrays to investigate odd and even numbers. (Video Lesson) |

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) |
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A. Problem Solving with Categorical DataStandard: 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) Lesson 2: Draw and label a picture graph to represent data with up to four categories. (Video Lesson) Lesson 3: Draw and label a bar graph to represent data; relate the count scale to the number line. (Video Lesson) Lesson 4: Draw a bar graph to represent a given data set. (Video Lesson) Lesson 5: Solve word problems using data presented in a bar graph. (Video Lesson) |

B. Problem Solving with Coins and BillsStandard: 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) Lesson 7: Solve word problems involving the total value of a group of coins. (Video Lesson) Lesson 8: Solve word problems involving the total value of a group of bills. (Video Lesson) Lesson 9: Solve word problems involving different combinations of coins with the same total value. (Video Lesson) Lesson 10: Use the fewest number of coins to make a given value. (Video Lesson) Lesson 11: Use different strategies to make $1 or make change from $1. (Video Lesson) Lesson 12: Solve word problems involving different ways to make change from $1. (Video Lesson) Lesson 13: Solve two-step word problems involving dollars or cents with totals within $100 or $1. (Video Lesson) |

Mid-Module Assessment: Topics A-B (assessment ½ day, return ½ day, remediation or further applications 1 day) |

C. Creating an Inch RulerStandard: 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) Lesson 15: Apply concepts to create inch rulers; measure lengths using inch rulers. (Video Lesson) |

D. Measuring and Estimating Length Using Customary and Metric UnitsStandard: 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) Lesson 17: Develop estimation strategies by applying prior knowledge of length and using mental benchmarks. (Video Lesson) Lesson 18: Measure an object twice using different length units and compare; relate measurement to unit size. (Video Lesson) Lesson 19: Measure to compare the differences in lengths using inches, feet, and yards. (Video Lesson) |

E. Problem Solving with Customary and Metric UnitsStandard: 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) Lesson 21: Identify unknown numbers on a number line diagram by using the distance between numbers and reference points. (Video Lesson) Lesson 22: Represent two-digit sums and differences involving length by using the ruler as a number line. (Video Lesson) |

F. Displaying Measurement DataStandard: 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) Lesson 24: Draw a line plot to represent the measurement data; relate the measurement scale to the number line. (Video Lesson) Lesson 25, Lesson 26: Draw a line plot to represent a given data set; answer questions and draw conclusions based on measurement data. (Video Lesson) |

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) |
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A. Attributes of Geometric ShapesStandard: 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) Lesson 2: Build, identify, and analyze two-dimensional shapes with specified attributes. (Video Lesson) Lesson 3: Use attributes to draw different polygons including triangles, quadrilaterals, pentagons, and hexagons. (Video Lesson) Lesson 4: Use attributes to identify and draw different quadrilaterals including rectangles, rhombuses, parallelograms, and trapezoids. (Video Lesson) Lesson 5: Relate the square to the cube, and describe the cube based on attributes. (Video Lesson) |

B. Composite Shapes and Fraction ConceptsStandard: 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) Lesson 7, Lesson 8: Interpret equal shares in composite shapes as halves, thirds, and fourths. (Video Lesson) |

C. Halves, Thirds, and Fourths of Circles and RectanglesStandard: 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) Lesson 11: Describe a whole by the number of equal parts including 2 halves, 3 thirds, and 4 fourths. (Video Lesson) Lesson 12: Recognize that equal parts of an identical rectangle can have different shapes. (Video Lesson) |

D. Application of Fractions to Tell TimeStandard: 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) Lesson 14: Tell time to the nearest five minutes. (Video Lesson) Lesson 15: Tell time to the nearest five minutes; relate a.m. and p.m. to time of day. (Video Lesson)Lesson 16: Solve elapsed time problems involving whole hours and a half hour. (Video Lesson) |

Total Number of Instructional Days: 20 |

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