Grade 3 Math in Ontario: What Your Child Learns This Year

Grade 3 is a big year in Ontario math. Children move from counting and simple sums toward multiplication, fractions and solving multi-step problems. Here is a plain-language look at the main areas in the Ontario math curriculum and simple ways to help at home.

The main areas

• Number — reading, writing and comparing whole numbers up to 1,000, and place value (hundreds, tens, ones).
• Operations — adding and subtracting larger numbers, and beginning multiplication and division with arrays and equal groups.
• Fractions — understanding halves, thirds, fourths and other unit fractions as equal parts of a whole.
• Algebra and coding — spotting and extending patterns, and following simple step-by-step instructions.
• Spatial sense — measuring length, telling time, and describing 2-D shapes and 3-D objects.
• Data — collecting information and reading simple graphs.
• Financial literacy — counting money and making change.

Practising at home

• Ask quick multiplication questions in the car: 'How many wheels on 4 bikes?'
• Cut a pizza or sandwich into equal parts and name the fraction.
• Read an analog clock together a few times a day.
• Let your child count change at the store.

When to get extra help

If your child is guessing at answers, avoiding homework, or a report card mentions a gap, short daily practice usually helps more than long weekend sessions. Miso Tutor has Grade 3 Math chapters built from the Canadian curriculum, with a friendly voice tutor, hints and a mastery check for each chapter — free to start.