🔢 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).

   Skill descriptor: Number: Operations · saying, representing, comparing, estimating and placing numbers to 1000

2. Unit 2

   ➕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.

   Skill descriptor: Number: Operations · adding and subtracting 2- and 3-digit numbers, with mental math and estimation

3. Unit 3

   ⚡Facts to 20

   Building fast, flexible recall of addition and subtraction facts to 20 with strategies like making ten, near doubles, fact families and thinking addition to subtract.

   Skill descriptor: Number: Operations · quick recall of basic addition and subtraction facts

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.

   Skill descriptor: Number: Operations · multiplication to 5 × 5

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).

   Skill descriptor: Number: Number Sense · division as sharing and grouping

6. Unit 6

   🍕Fractions

   Naming fractions of a shape, a set and a number line, knowing what the top and bottom numbers mean, and comparing fractions by the size of their parts.

   Skill descriptor: Number: Number Sense · fractions as parts of a whole and of a set

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.

   Skill descriptor: Patterns and Relations: Algebra · increasing and decreasing patterns, and one-step equations with an unknown

8. Unit 8

   ⏰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.

   Skill descriptor: Shape and Space: Measurement · the passage of time in minutes, hours, days, weeks, months and years

9. Unit 9

   📏Measuring

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

   Skill descriptor: Shape and Space: Measurement · measuring length in centimetres and metres and mass in grams and kilograms

10. Unit 10

    📐Area & Perimeter

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

    Skill descriptor: Shape and Space: Measurement · perimeter of regular, irregular and composite shapes

11. Unit 11

    🧊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.

    Skill descriptor: Shape and Space: 2-D Shapes and 3-D Objects · describing 3-D objects by the shape of their faces

12. Unit 12

    🔷Sorting Polygons

    Practises naming polygons by their number of sides and sorting them as regular (all sides and angles equal) or irregular.

    Skill descriptor: Shape and Space: 2-D Shapes and 3-D Objects · naming, describing and sorting polygons

13. Unit 13

    📊Graphs & Chance

    Reading pictographs and bar graphs where one symbol can stand for one vote or several, and describing how likely outcomes are with spinners, marbles and number cubes.

    Skill descriptor: Statistics and Probability: Data Analysis · collecting data, tally marks, line plots and bar graphs