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Grade 3 Math Courses - Ontario Curriculum

Discover Ontario's Grade 3 math curriculum, covering essential topics like number sense, measurement, geometry, and data management. Build a strong foundation for future mathematical success.

Ontario Grade 3 Math Curriculum - Comprehensive Guide

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OE_ID
Expectations
StudyPug Topic
ON.OE.3.B.1.1
B1.1 Whole Numbers: read, represent, compose, and decompose whole numbers up to and including 1000, using a variety of tools and strategies, and describe various ways they are used in everyday life
Place Value Tables of Multi-Digits
Identifying the Place Value of a Digit
Expanded Form of Multi-Digits
Converting Between Place Values of Multi-Digits
Reading and Writing Digits
Regrouping Place Values of Multi-Digits
ON.OE.3.B.1.2
B1.2 Whole Numbers: compare and order whole numbers up to and including 1000, in various contexts
Comparing Values of Multi-Digits
ON.OE.3.B.1.3
B1.3 Whole Numbers: round whole numbers to the nearest ten or hundred, in various contexts
Rounding numbers
ON.OE.3.B.1.5
B1.5 Whole Numbers: use place value when describing and representing multi-digit numbers in a variety of ways, including with base ten materials
Place Value Word Problems of Multi-Digits
ON.OE.3.B.1.7
B1.7 Fractions: represent and solve fair-share problems that focus on determining and using equivalent fractions, including problems that involve halves, fourths, and eighths; thirds and sixths; and fifths and tenths
Equivalent fractions
ON.OE.3.B.2.1
B2.1 Properties and Relationships: use the properties of operations, and the relationships between multiplication and division, to solve problems and check calculations
Relating Multiplication with Division Up to 999
ON.OE.3.B.2.2
B2.2 Math Facts: recall and demonstrate multiplication facts of 2, 5, and 10, and related division facts
Multiplying Digits with 5 and 10 Up to 999
Multiplying Digits with 0 and 1 Up to 999
Times Tables
ON.OE.3.B.2.3
B2.3 Mental Math: use mental math strategies, including estimation, to add and subtract whole numbers that add up to no more than 1000, and explain the strategies used
Addition using Estimation
Subtraction using Estimation
ON.OE.3.B.2.4
B2.4 Addition and Subtraction: demonstrate an understanding of algorithms for adding and subtracting whole numbers by making connections to and describing the way other tools and strategies are used to add and subtract
Simplifying Addition by Making 10s
Addition with Tens and Ones
Simplifying Addition by Separating
Identifying the Missing Digits (Subtraction)
ON.OE.3.B.2.5
B2.5 Addition and Subtraction: represent and solve problems involving the addition and subtraction of whole numbers that add up to no more than 1000, using various tools and algorithms
Adding with Digits Up to 1000
Addition with Regrouping Up to 1000
Addition Tables Up to 1000
Identifying the Missing Digits (Addition)
Addition Word Problems Up to 1000
Subtracting with Digits Up to 1000
Subtraction with Regrouping Up to 1000
Subtraction Word Problems Up to 1000
ON.OE.3.B.2.6
B2.6 Multiplication and Division: represent multiplication of numbers up to 10 × 10 and division up to 100 ÷ 10, using a variety of tools and drawings, including arrays
Using Models to Multiply Up to 999
Dividing with Arrays
ON.OE.3.B.2.7
B2.7 Multiplication and Division: represent and solve problems involving multiplication and division, including problems that involve groups of one half, one fourth, and one third, using tools and drawings
Multiplying with Digits Up to 999
Square Numbers
Multiplying with 3 Numbers Or More
Multiplication Tables Up to 999
Multiplication Word Problems Up to 999
Sharing & Grouping Up to 999
Remainders from Division Up to 999
Dividing with Digits Up to 999
Division Tables Up to 999
Division Word Problems Up to 999
ON.OE.3.B.2.8
B2.8 Multiplication and Division: represent the connection between the numerator of a fraction and the repeated addition of the unit fraction with the same denominator using various tools and drawings, and standard fractional notation
Repeated Addition As Multiplication Up to 999
ON.OE.3.B.2.9
B2.9 Multiplication and Division: use the ratios of 1 to 2, 1 to 5, and 1 to 10 to scale up numbers and to solve problems
Applications of the four operations (BEDMAS without exponents)
ON.OE.3.C.2.1
C2.1 Variables: describe how variables are used, and use them in various contexts as appropriate
What are variables in algebra?
ON.OE.3.C.2.2
C2.2 Equalities and Inequalities: determine whether given sets of addition, subtraction, multiplication, and division expressions are equivalent or not
Introduction to solving equations with Variables
ON.OE.3.C.2.3
C2.3 Equalities and Inequalities: identify and use equivalent relationships for whole numbers up to 1000, in various contexts
Introduction to solving patterns in T-tables and equations
ON.OE.3.D.1.1
D1.1 Data Collection and Organization: sort sets of data about people or things according to two and three attributes, using tables and logic diagrams, including Venn, Carroll, and tree diagrams, as appropriate
Organizing data using Venn diagrams
Carroll diagrams
ON.OE.3.D.1.4
D1.4 Data Analysis: determine the mean and identify the mode(s), if any, for various data sets involving whole numbers, and explain what each of these measures indicates about the data
Introduction to mean, median, mode, and range
ON.OE.3.E.2.7
E2.7 Area: compare the areas of two-dimensional shapes by matching, covering, or decomposing and recomposing the shapes, and demonstrate that different shapes can have the same area
Area - unit squares and pattern blocks
ON.OE.3.E.2.8
E2.8 Area: use appropriate non-standard units to measure area, and explain the effect that gaps and overlaps have on accuracy
Square measure
ON.OE.3.E.2.9
E2.9 Area: use square centimetres (cm2) and square metres (m2) to estimate, measure, and compare the areas of various two-dimensional shapes, including those with curved sides
Calculating and Estimating Area and Perimeter
ON.OE.3.F.1.1
F1.1 Money Concepts: estimate and calculate the change required for various simple cash transactions involving whole-dollar amounts and amounts of less than one dollar
Recognizing coins and bills

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