Canada · Ontario Curriculum Expectations
Grade 3 Mathematics
This course focuses on developing deep conceptual understanding of numbers up to 1000 and the foundational logic of multiplication and division. Students engage with spatial reasoning and data analysis to solve real world problems through collaborative inquiry and mathematical modeling.
The Power of Place Value
Students investigate the base ten system to understand how the position of a digit determines its value in numbers up to 1000.
Exploring different ways to represent and decompose numbers to 1000 using concrete and pictorial models.
Using known quantities as benchmarks to estimate the size of unknown sets and measurements.
Developing mental math strategies and exploring the relationship between addition and subtraction within 1000.
Multiplication and Division Logic
Moving from additive thinking to multiplicative thinking by exploring equal groups, arrays, and sharing.
Investigating multiplication as repeated addition and organized arrays.
Exploring division through fair sharing and grouping scenarios.
Identifying and predicting patterns within multiplication tables and skip counting sequences.
Fractional Thinking
Understanding parts of a whole and parts of a set through visual models and fair sharing.
Recognizing that a fraction only has meaning in relation to a defined whole unit.
Investigating how the size of a unit fraction changes as the denominator increases.
Geometry and Spatial Systems
Analyzing the properties of 2D shapes and 3D objects and their movement in space.
Classifying shapes based on sides, angles, and symmetry.
Exploring how shapes move through flips, slides, and turns.
Data and Measurement Stories
Collecting, representing, and interpreting data to answer questions about the world.
Using standard units to measure length, mass, and capacity.
Analyzing graphs and charts to draw conclusions and make predictions.