🔢 Grade 3 Math

Units

1. Unit 1

   🧱Numbers to 1000

   Reading, building, comparing and ordering numbers to 1000 as hundreds, tens and ones, including tricky zeros and regrouping (12 tens is 1 hundred and 2 tens).

   Expectation: B1.1, B1.2, B1.5 · reading, comparing and using place value for whole numbers up to 1000

2. Unit 2

   🎯Round & Count

   Rounding numbers to the nearest ten or hundred, counting forward and back by 50s, 100s and 200s, and comparing and ordering numbers up to 1000.

   Expectation: B1.2–B1.4 · comparing and ordering numbers to 1000, rounding to the nearest ten or hundred, and counting by 50s, 100s and 200s

3. Unit 3

   ➕Add & Subtract

   Adding and subtracting 2- and 3-digit numbers by place value, number-line jumps and counting up, plus estimating by rounding to the nearest hundred.

   Expectation: B2.3–B2.5 · adding and subtracting whole numbers to 1000 with mental math and algorithms

4. Unit 4

   ✖️Multiplication

   Understanding multiplication as equal groups, arrays, repeated addition and skip counting. Easier sets use 2s, 5s and 10s; stretch sets go beyond 5 × 5.

   Expectation: B2.2, B2.6 · multiplication facts of 2, 5 and 10, and multiplication with arrays

5. Unit 5

   ➗Division

   Understanding division as sharing fairly and as making equal groups, and using multiplication facts to divide (3 × 4 = 12, so 12 ÷ 3 = 4).

   Expectation: B2.6, B2.7 · division as sharing and grouping

6. Unit 6

   🧁Fair Shares

   Sharing up to 20 items fairly among 2, 3, 4, 5, 6, 8 or 10 people, including leftovers that must be cut up, and seeing that different fractions can be the same amount.

   Expectation: B1.6, B1.7 · fair-share problems with up to 20 items and 2, 3, 4, 5, 6, 8 or 10 sharers, and equivalent fractions

7. Unit 7

   📈Patterns & Equations

   Extending increasing and decreasing patterns, describing pattern rules in words and tables, and solving one-step equations like ☐ + 8 = 23.

   Expectation: C1.1–C1.4, C2.2, C2.3 · patterns, and equal and unequal expressions

8. Unit 8

   📊Data, Mean & Mode

   Reading pictographs and bar graphs with different scales, reading two-way tables, and finding the mean (equal share) and the mode (most common) of a set of numbers.

   Expectation: D1.1–D1.5 · sorting data, graphs with different scales, and finding the mean and mode

9. Unit 9

   🎲How Likely?

   Using the words impossible, unlikely, equally likely, likely and certain, predicting from results, and noticing when the mean and mode of a data set match.

   Expectation: D2.1, D2.2 · describing likelihood from impossible to certain, making predictions, and comparing the mean and mode

10. Unit 10

    🧊3D Objects

    Naming 3D objects, counting their faces, edges and vertices, and thinking about how they are built from flat faces or from straws and clay.

    Expectation: E1.1 · sorting and describing 3D objects by faces, edges and vertices

11. Unit 11

    🧭Turns & Structures

    Following directions with half and quarter turns, counting the faces of 3D pieces in a structure, and knowing when two shapes are congruent (exactly the same).

    Expectation: E1.2–E1.4 · putting together and taking apart structures, congruent shapes, and directions with half and quarter turns

12. Unit 12

    📏Measuring

    Measuring with centimetres and metres, grams and kilograms, millilitres and litres: choosing sensible units, estimating, comparing and solving measurement problems.

    Expectation: E2.2, E2.4, E2.5 · metric units of length, and mass

13. Unit 13

    📐Area & Perimeter

    Finding the perimeter (distance around) of rectangles and triangles, finding a missing side, and measuring area in square centimetres and square metres.

    Expectation: E2.1, E2.7–E2.9 · perimeter of polygons, comparing areas, and square centimetres and square metres

14. Unit 14

    ⏰Time

    Telling time on an analog clock, working out start and end times, and knowing how seconds, minutes, hours, days, weeks, months and years relate.

    Expectation: E2.6 · telling time with analog and digital clocks

15. Unit 15

    🪙Making Change

    Working out change from $1, $5, $10 and $20, adding two prices, and checking whether there is enough money. Amounts are in multiples of 5¢, since Canada no longer has pennies.

    Expectation: F1.1 · estimating and calculating change for whole-dollar amounts and amounts under one dollar