OntarioON Grade 3 Math Curriculum
Video lessons and practice for every Grade 3 math topic. Aligned to what Ontario schools teach. Help your child keep up or get ahead.
ON Grade 3 Math Curriculum | StudyPugHelp
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 |
ON.OE.3.B.1.2 | B1.2 Whole Numbers: compare and order whole numbers up to and including 1000, in various contexts |
ON.OE.3.B.1.3 | B1.3 Whole Numbers: round whole numbers to the nearest ten or hundred, in various contexts |
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 |
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 |
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 |
ON.OE.3.B.2.2 | B2.2 Math Facts: recall and demonstrate multiplication facts of 2, 5, and 10, and related division facts |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
ON.OE.3.C.2.1 | C2.1 Variables: describe how variables are used, and use them in various contexts as appropriate |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
Grade 3 Math in Ontario: What Students Learn
Ontario Grade 3 math covers a wide range of foundational topics that students will build on for years to come. The curriculum is organized across several key areas: number sense, operations, patterning and algebra, data literacy, geometry, and measurement. StudyPug has video lessons and practice problems aligned to every one of these areas.
Number Sense and Place Value
Grade 3 students learn to read, represent, compose, and decompose whole numbers up to 1000. They explore place value using base ten materials, compare and order numbers, round to the nearest ten or hundred, and count by 50s, 100s, and 200s. These skills form the foundation for all future number work.
Multiplication, Division, and Fractions
One of the biggest shifts in Grade 3 is the introduction of multiplication and division. Students recall facts for 2, 5, and 10 and learn related division facts. They also explore fair-share problems that introduce fractions, including halves, fourths, eighths, thirds, sixths, fifths, and tenths. StudyPug breaks these concepts into short, clear video lessons so students can master them step by step.
Addition and Subtraction to 1000
Grade 3 students extend their addition and subtraction skills to numbers that add up to 1000. They use mental math strategies, estimation, and standard algorithms. StudyPug's practice problems help students build speed and accuracy with these calculations.
Patterning and Algebra
Students identify, create, and extend patterns with repeating elements, movements, and operations. They learn how to use tables of values and begin exploring variables and equivalent expressions. These early algebra concepts prepare students for more formal algebra in later grades.
Data Literacy and Probability
Grade 3 students collect and organize data using frequency tables and display it in pictographs and bar graphs. They learn to find the mean and mode of data sets and use probability language such as impossible, unlikely, equally likely, likely, and certain to describe and predict outcomes.
Geometry and Measurement
Students sort and identify three-dimensional objects including cubes, prisms, pyramids, cylinders, and cones. They measure perimeter, area, mass, and capacity using standard and non-standard units. They also practise telling time to the minute using analog and digital clocks, and work with money to calculate change for simple transactions.
Coding in Grade 3 Math
Ontario's Grade 3 math curriculum includes coding. Students solve problems by writing and executing code involving sequential, concurrent, and repeating events. They also read and alter existing code to understand how changes affect outcomes.