Canadian Curriculum · Grade 3 Math

Grade 3 Math Lesson Plan & Curriculum Map

A full-year Grade 3 Math lesson plan aligned to the Ontario curriculum, adaptable to other provinces. Week-by-week lessons for 1, 2 or 3 days a week from September to August, covering numbers to 1,000, 2- and 3-digit addition and subtraction, length, perimeter and area, time, temperature, money, capacity and mass, multiplication, division, fractions, shapes, transformations, patterns, graphs and probability.

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Grade 3 Math learning map

Choose a term, then compare a lighter weekly plan with a more intensive schedule.

1 day/week · steady pace2–3 days/week · guided practice
September · Numbers to 100

Grade 3 Math — September Lesson Plan

Ontario Curriculum · Mathematics
Week1 Day/Week2 Day/Week3 Day/Week
September 1st week
(Number Sense: Numbers to 100)		Numbers to 100 1: Place Value to 100Numbers to 100 1: Place Value to 100 2: Reading and Writing Numbers to 100Numbers to 100 1: Place Value to 100 2: Reading and Writing Numbers to 100 3: Comparing and Ordering Numbers to 100
September 2nd week
(Number Sense: Numbers to 100)		Numbers to 100 2: Reading and Writing Numbers to 100Numbers to 100 3: Comparing and Ordering Numbers to 100 4: Chapter Review & QuizNumbers to 100 4: Chapter Review & Quiz
September 3rd week
(Number Sense: Numbers to 100)		Numbers to 100 3: Comparing and Ordering Numbers to 100R: Cumulative Review Worksheets & QuizR: Cumulative Review Worksheets & Quiz
September 4th week
(Number Sense: Numbers to 100)		Numbers to 100 4: Chapter Review & QuizE: Enrichment Activities & Cumulative PracticeE: Enrichment Activities & Cumulative Practice
October · Addition and Subtraction of 2-Digit Numbers

Grade 3 Math — October Lesson Plan

Ontario Curriculum · Mathematics
Week1 Day/Week2 Day/Week3 Day/Week
October 1st week
(Addition & Subtraction of 2-Digit Numbers)		Addition and Subtraction of 2-Digit Numbers 1: Adding 2-Digit NumbersAddition and Subtraction of 2-Digit Numbers 1: Adding 2-Digit Numbers 2: Subtracting 2-Digit NumbersAddition and Subtraction of 2-Digit Numbers 1: Adding 2-Digit Numbers 2: Subtracting 2-Digit Numbers 3: Estimating Sums and Differences
October 2nd week
(Addition & Subtraction of 2-Digit Numbers)		Addition and Subtraction of 2-Digit Numbers 2: Subtracting 2-Digit NumbersAddition and Subtraction of 2-Digit Numbers 3: Estimating Sums and Differences 4: Chapter Review & QuizAddition and Subtraction of 2-Digit Numbers 4: Chapter Review & Quiz
October 3rd week
(Addition & Subtraction of 2-Digit Numbers)		Addition and Subtraction of 2-Digit Numbers 3: Estimating Sums and DifferencesR: Cumulative Review Worksheets & QuizR: Cumulative Review Worksheets & Quiz
October 4th week
(Addition & Subtraction of 2-Digit Numbers)		Addition and Subtraction of 2-Digit Numbers 4: Chapter Review & QuizE: Enrichment Activities & Cumulative PracticeE: Enrichment Activities & Cumulative Practice
November · Numbers to 1000 + Addition and Subtraction of 3-Digit Numbers

Grade 3 Math — November Lesson Plan

Ontario Curriculum · Mathematics
Week1 Day/Week2 Day/Week3 Day/Week
November 1st week
(Number Sense: Numbers to 1000 & 3-Digit Operations)		Numbers to 1000 1: Place Value to 1000Numbers to 1000 1: Place Value to 1000 2: Reading and Writing Numbers to 1000Numbers to 1000 1: Place Value to 1000 2: Reading and Writing Numbers to 1000 3: Comparing and Ordering Numbers to 1000
November 2nd week
(Number Sense: Numbers to 1000 & 3-Digit Operations)		Numbers to 1000 2: Reading and Writing Numbers to 1000Numbers to 1000 3: Comparing and Ordering Numbers to 1000 4: Chapter Review & QuizNumbers to 1000 4: Chapter Review & Quiz Addition and Subtraction of 3-Digit Numbers 1: Adding 3-Digit Numbers 2: Subtracting 3-Digit Numbers
November 3rd week
(Number Sense: Numbers to 1000 & 3-Digit Operations)		Numbers to 1000 3: Comparing and Ordering Numbers to 1000Addition and Subtraction of 3-Digit Numbers 1: Adding 3-Digit Numbers 2: Subtracting 3-Digit NumbersAddition and Subtraction of 3-Digit Numbers 3: Regrouping in Addition and Subtraction 4: Chapter Review & Quiz
November 4th week
(Number Sense: Numbers to 1000 & 3-Digit Operations)		Numbers to 1000 4: Chapter Review & QuizAddition and Subtraction of 3-Digit Numbers 3: Regrouping in Addition and Subtraction 4: Chapter Review & QuizR: Cumulative Review Worksheets & Quiz
December · Length and Distance + Perimeter and Area

Grade 3 Math — December Lesson Plan

Ontario Curriculum · Mathematics
Week1 Day/Week2 Day/Week3 Day/Week
December 1st week
(Measurement: Length, Perimeter & Area)		Length and Distance 1: Measuring Length in Centimetres and MetresLength and Distance 1: Measuring Length in Centimetres and Metres 2: Estimating LengthLength and Distance 1: Measuring Length in Centimetres and Metres 2: Estimating Length 3: Chapter Review & Quiz
December 2nd week
(Measurement: Length, Perimeter & Area)		Length and Distance 2: Estimating LengthLength and Distance 3: Chapter Review & Quiz Perimeter and Area 1: Finding PerimeterPerimeter and Area 1: Finding Perimeter 2: Finding Area 3: Chapter Review & Quiz
December 3rd week
(Measurement: Length, Perimeter & Area)		Length and Distance 3: Chapter Review & QuizPerimeter and Area 2: Finding Area 3: Chapter Review & QuizR: Cumulative Review Worksheets & Quiz
December 4th week
(Measurement: Length, Perimeter & Area)		Perimeter and Area 1: Finding PerimeterR: Cumulative Review Worksheets & QuizE: Enrichment Activities & Cumulative Practice
The learning framework

Anatomy of a focused lesson

Each session moves from a clear focus to guided practice and a quick check for understanding.

10 minutes

Warm up and connect

Start with a quick number talk or puzzle that connects the week’s Grade 3 topic to what your child already knows.

25 minutes

Model and practise

Explore the idea with visuals and manipulatives, then practise with guided and independent questions.

10 minutes

Check for understanding

Finish with a short exit task so the tutor knows exactly what to revisit next lesson.

Student learning toolkit

Resources for Grade 3 Math

Concept lessons

Clear explanations of each Grade 3 math topic in the order your child meets it at school.

Practice worksheets

Cumulative review worksheets and quizzes matched to each week of the plan.

Worked solutions

Step-by-step solutions that show the reasoning, not just the answer.

Progress notes

Regular feedback for parents on strengths, gaps and next steps.

Free first lesson

Build a plan for Grade 3 Math

Tell us your child’s province and where they are in Grade 3 math, and we will shape the first lesson around their goals.

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