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Third Grade Math Scope and Sequence 2025-2026
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Key:
Essential Standards
Report Card Standards
i-Ready Diagnostic Window
Acadience Window
RISE Benchmarks or ASD Single Standard Assessments
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Third Grade Resources USBE Mathematics Core Guides
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UnitLessonSession NumberSession TitleRecommended Number Sense Routine (Lesson 0 teach all of the routines)Optional Resources
(To enhance, not replace the curriculum)
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Suggested Date Range: Aug. 13-15Lesson 0 – Found Only in the Teacher Toolbox
Set clear routines for: Independent work, Partner and small group collaboration, Productive mathematical discourse, Daily number sense routines		1Write Three-Digit Numbers Different Ways Visual Images and Choral CountBuilding a Community of Learners
Spark Positive Math Mindsets
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2Write Three- Digit Numbers Different WaysEstimation (counting Collection 1x/month)
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3Adding Three-Digit Numbers Number String and Data talk
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Aug. 18 - Sept. 12BOY i-Ready Diagnostic (recommended 2-3 sessions of 30-45 minutes each)
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August. - SeptemberBOY Acadience assessment administration window
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Unit 1: Three-Digit Numbers: Place Value, Addition, and Subtraction
Recommended date range: August 18 - September 10		Lesson 1
Use Place Value to Round Numbers
3.NBT.1		Session 1Explore: Using place value to round numbersVisual ImageRounding Tasks: T1- T2 - T3
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Session 2Develop: Rounding to the nearest tenChoral Count Day 1
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Session 3Develop: Rounding to the nearest hundredChoral Count Day 2
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Session 4Refine: Using place value to round numbersEstimation
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Assessment OptionsComprehension check, L1: Use Place Value to Round Numbers (3.NBT.1) Number String
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Lesson 2
Add Three-Digit Numbers
3.NBT.2		Session 1Explore: Adding Three-digit numbersTrue/ FalseClassroom Supplies Task
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Session 2Develop: Using place-value strategies to addEstimation
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Session 3Develop: connecting place-value strategies to an algorithmVisual Image
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Session 4Refine: Adding three-digit numbersNumber Stringadd a video to model
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Assessment OptionsComprehension Check, L2: Add Three-Digit Numbers (3.NBT.2)True/ False
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Lesson 3
Subtract Three-Digit Numbers 3.NBT.2		Session 1Explore: Subtracting Three-Digit NumbersVisual Image
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Session 2Develop: Using Place-value strategies to subtractChoral Count Day 1
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Session 3Develop: Adding on to subtractChoral Count Day 2
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Session 4Develop: connecting place-value strategies to an algorithmEstimation
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Session 5Refine: Subtracting Three-Digit NumbersNumber String
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Assessment OptionsRISE BM: Math Grade 3 - Number and Operations in Base Ten 2 (3.NBT.2)
ASD Single Standard Assessment: 22-23 3.NBT.2 Form A or B
Comprehension check, L3: Subtract Three-Digit Numbers (3.NBT.2) 		Essential and report card standards have an assessment day included in the date range, for non-essential/non-report card standards the assessment was not given its own day.
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End Unit 1 Teacher Discretion
2 Days
Unit 1 Math in Action: Area, Surface Area, and Algebraic Expressions
Optional Resources Tasks, i-Ready Unit Review or Assessment		Data Talk or Estimation
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Unit 2: Multiplication and Division: Concepts, Relationships, and Patterns
Recommended date range: Sept. 10 - Nov. 14		Lesson 4
Understand the Meaning of Multiplication
3.NBT.2		Session 1Explore: Meaning of MultiplicationEstimation (counting Collection 1x/month)
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Session 2Develop Understanding of Multiplication ModelsNumber String
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Session 3Refine ideas About the Meaning of MultiplicationTrue/ False
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Assessment Options-RISE BM: Math Grade 3 - Number and Operations in Base Ten 2 (3.NBT.2)
-ASD Single Standard Assessment: 22-23 3.NBT.2 Form A or B
-Comprehension check, L4: Understanding the Meaning of Multiplication (3.OA.1)		Visual Image
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Lesson 5
Multiply with 0, 1, 2, 5, and 10
3.OA.3, 3.OA.5, 3.OA.7		Session 1Explore: Multiplying with 0, 1, 2, 5, and 10Choral Count Day 1
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Session 2Develop: Multiplying with 2, 5, and 10Choral Count Day 2
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Session 3Develop: Multiplying with 0 and 1Estimation
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Session 4Refine: Multiplying with 0, 1, 2, 5, and 10Number String
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Assessment Options-RISE BM: Math Grade 3 - Math Grade 3 Operations and Algebraic 3OA-MDNBT
-RISE BM: Math Grade 3 - Operations and Algebraic Thinking 7 (3.OA.7) 6 forms
-Comprehension check, L5: Multiply with 0, 1, 2, 5, and 10		True/ False
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Lesson 6
Multiply with
3, 4, and 6
3.OA.3, 3.OA.5, 3.OA.7		Session 1Explore: Multiplying with 3, 4, and 6Data Talk or Estimation
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Session 2Develop: Multiplying with 3Visual Image
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Session 3Develop: Multiplying with 4Number String
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Session 4Develop: Multiplying with 6True/ False
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Session 5Refine: Multiplying with 3, 4, and 6Visual Image
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Assessment Options-RISE BM: Math Grade 3 - Math Grade 3 Operations and Algebraic 3OA-MDNBT
-RISE BM: Math Grade 3 - Operations and Algebraic Thinking 7 (3.OA.7) 6 forms
-Comprehension check, L6: Multiply with 3, 4, and 6		Choral Count Day 1
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Lesson 7
Multiply with
7, 8, and 9
3.OA.3, 3.OA.5, 3.OA.7		Session 1Explore: Multiplying with 7, 8, and 9Choral Count Day 2
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Session 2Develop: Multiplying with 7Estimation
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Session 3Develop: Multiplying with 8Number String
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Session 4Develop: Multiplying with 9True/ False
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Session 5Refine: Multiplying with 7, 8, and 9Data Talk or Estimation
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Assessment Options-RISE BM: Math Grade 3 - Math Grade 3 Operations and Algebraic 3OA-MDNBT
-RISE BM: Math Grade 3 - Operations and Algebraic Thinking 7 (3.OA.7) 6 forms
-Comprehension check, L7: Multiply with 7, 8, and 9		Visual Image ,
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Lesson 8
Use order and Grouping to Multiply
3.OA.5		Session 1Explore: Using Order and Grouping to MultiplyNumber String or (counting Collection 1x/month)
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Session 2Develop: Using Order to MultiplyTrue/ False
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Session 3Develop: Using Grouping to MultiplyVisual Image
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Session 4Develop: Using Order and Grouping to MultiplyChoral Count Day 1
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Session 5Refine: Using Order and Grouping to MultiplyChoral Count Day 2
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Assessment OptionsComprehension check, L8: Use Order and Grouping to Multiply (3.OA.5)Estimation
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Lesson 9
Use Place Value to Multiply 3.NBT.3		Session 1Explore: Using Place Value to MultiplyNumber String
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Session 2Develop: Multiplying with TensTrue/ False
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Session 3Refine: Using Place Value to MultiplyData Talk or Estimation
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Assessment OptionsComprehension check, L9: Use Place Value to Multiply (3.NBT.3)Visual Image ,
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Lesson 10
Understanding the Meaning of Division 3.OA.2		Session 1Explore: The Meaning of DivisionNumber String
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Session 2Develop: Understanding of Division ModelsNumber String
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Session 3Refine: Ideas About the Meaning of DivisionVisual Image
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Assessment OptionsComprehension check, L10: Understanding the Meaning of Division (3.OA.2)Choral Count Day 1
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Lesson 11
Understand How Multiplication and Division Are Connected 3.OA.6		Session 1Explore: How Multiplication and Division Are ConnectedChoral Count Day 2
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Session 2Develop: Understanding of How Multiplication and Division Are ConnectedEstimation
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Session 3Refine: Ideas About How Multiplication and Division Are ConnectedNumber String
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Assessment OptionsComprehension check, L11: Understand How Multiplication and Division are Connected (3.OA.6)Number String
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Lesson 12
Multiplication and Division Facts 3.OA.4 , 3.OA.7		Session 1Explore: Multiplication and Division FactsData Talk or Estimation
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Session 2Develop: Working with Division FactsVisual Image,
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Session 3Develop: Using a Multiplication TableNumber String or counting Collection 1x/month
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Session 4Refine: Working with Multiplication and Division FactsTrue/ False
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Assessment Options-RISE BM: Math Grade 3 - Math Grade 3 Operations and Algebraic 3OA-MDNBT
-RISE BM: Math Grade 3 - Operations and Algebraic Thinking 7 (3.OA.7) 6 forms
-Comprehension check, L12: Multiplication and Division Facts 		Visual Image
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Lesson 13
Understanding Patterns
3.OA.9		Session 1Explore: PatternsChoral Count Day 1
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Session 2Develop: Understanding of PatternsChoral Count Day 2
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Session 3Refine: Ideas About PatternsEstimation
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Assessment Options-RISE BM: Math Grade 3 - Number and Operations in Base Ten 1 and 3 (3.NBT.1 & 3.NBT.3) (3 Forms) -ASD Single Standard Assessment: 22-23 3.OA.3 Form A
-Comprehension Check, L13: Understand Patterns (3.OA.9)		Number String
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Unit 3: Multiplication: Finding Area, Solving Word Problems, and Using Scaled Graphs
Recommended date range: Nov. 14 - Jan. 14		Lesson 14
Understanding Area 3.MD.5, 3.MD.6		Session 1Explore: AreaNumber String
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Session 2Develop: Understanding of AreaData Talk or Estimation
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Session 3Refine: Ideas About Finding AreaVisual Image
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Assessment OptionsComprehension Check, L14: Understand Area (3.MD.5,6)Number String
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Lesson 15
Multiply to Find Area 3.MD.7		Session 1Explore: Multipliying to Find AreaNumber String
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Session 2Develop: Multiplying to Find AreaVisual Image
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Session 3Develop: Solving Word Problems Abbout AreaChoral Count Day 1
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Session 4Refine Multiplying to Find AreaChoral Count Day 2
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Assessment OptionsComprehension Check, L15: Multiply to Find Area (3.MD.7)Estimation
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Nov. 24 - Dec 18MOY i-Ready Diagnostic (recommended 2-3 sessions of 30-45 minutes each)
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Lesson 16
Add Areas
3.MD.7		Session 1Explore: Adding AreasNumber String
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Session 2Develop: Finding Areas of Combined RectanglesTrue/ False
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Session 3Develop: Finding Areas of Non-Rectangular ShapesData Talk or Estimation
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Session 4Refine: Adding AreasVisual Image , (counting Collection 1x/month)
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Assessment OptionsRISE BM: Math Grade 3 - Operations and Algebraic Thinking 5 – 6 (3.OA.5 & 3.OA.6)(3.OA.7) (3 Forms)
ASD Single Standard Assessment: 22-23 3.MD.7 Form A or B
Comprehension Check, L16: Add Areas (3.MD.7)		Number String
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Dec. 1 - Jan. 31MOY Acadience assessment administration window
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Lesson 17
Solve One-Step Word Problems Using Multiplication and Division
3.OA.3		Session 1Explore: Solving One-Step Word Problems Using Multiplication and DivisionVisual ImageTwo Interpretations of Division
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Session 2Develop: Solving Problems About Equal GroupsChoral Count Day 1
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Session 3Develop: Solving Problems About ArraysChoral Count Day 2
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Session 4Develop: Solving Problems About AreaEstimation
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Session 5Refine: Solving One-Step Problems Using Multiplication and DIvisionNumber String
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Assessment Options-RISE Benchmark Cluster 3. 3OA-NBT. 3.OA.3
-ASD. 3.OA.3. (Form A or B)
- Comprehansion Check, L17: Solve One-Step Word Problems Using Multiplication and Division (3.OA.3)		True/ False
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Lesson 18
Solve Two-Step Problems Using the Four Operations
3.OA.8		Session 1Explore: Solving Two-Step Problems Using THe Four OperationsData Talk or Estimation