New Brunswick · Grade 3
Mathematics, Grade 3
New Brunswick’s Grade 3 math course, from Number to Statistics and Probability.
- Units
- 4
- Lessons
- 9
- Skills
- 40
- Provincial exam
- None
- Official curriculum
- New Brunswick Department of Education and Early Childhood Development
Unit by unit
Every skill in the course, numbered by unit.
Unit 1 · 21 skills
Number
Skip-Counting and Numbers to 1000
Skip-counting by 5s, 10s, and 100s
I can skip-count by 5s, 10s, and 100s from any start.
Skill 1.1
Skip-counting by 3s, 4s, and 25s
I can skip-count by 3s, 4s, and 25s.
Skill 1.2
Showing numbers to 1000
I can show numbers to 1000 with materials, pictures, and numerals.
Skill 1.3
Comparing and ordering to 1000
I can compare and order numbers up to 1000.
Skill 1.4
Estimating quantities to 1000
I can estimate a large quantity using a referent.
Skill 1.5
Hundreds, tens, and ones
I can show a number to 1000 as hundreds, tens, and ones.
Skill 1.6
Mental Math and Adding/Subtracting to 1000
Adding two 2-digit numbers mentally
I can add two 2-digit numbers in my head.
Skill 1.7
Subtracting two 2-digit numbers mentally
I can subtract two 2-digit numbers in my head.
Skill 1.8
Estimating sums and differences
I can estimate a sum or difference before computing.
Skill 1.9
Adding numbers to 1000
I can add numbers with answers up to 1000.
Skill 1.10
Subtracting numbers to 1000
I can subtract numbers with answers up to 1000.
Skill 1.11
Doubles and making 10 for facts
I can use doubles and making 10 to find facts.
Skill 1.12
The commutative and zero properties
I can use the swap-order and zero properties to find facts.
Skill 1.13
Thinking addition to subtract
I can find a subtraction fact by thinking of the matching addition.
Skill 1.14
Multiplication, Division, and Fractions
Multiplication as equal groups and arrays
I can show multiplication as equal groups or an array.
Skill 1.15
Multiplication facts to 5 by 5
I can find multiplication facts up to 5 × 5.
Skill 1.16
Division as sharing and grouping
I can show division as sharing equally or making equal groups.
Skill 1.17
Relating division to multiplication
I can use a multiplication fact to solve a division.
Skill 1.18
A fraction is part of a whole
I know a fraction names equal parts of a whole.
Skill 1.19
Where fractions are used
I can find fractions in everyday life.
Skill 1.20
Comparing fractions with the same bottom number
I can compare fractions that have the same bottom number.
Skill 1.21
The official wording · 21 outcomes
- 1.1
- Say the number sequence forward and backward from 0 to 1000 by: 5s, 10s, or 100s, using any starting point
- 1.2
- 3s using starting points that are multiples of 3; 4s using starting points that are multiples of 4; 25s, using starting points that are multiples of 25
- 1.3
- Represent and describe numbers to 1000, concretely, pictorially and symbolically.
- 1.4
- Compare and order numbers to 1000.
- 1.5
- Estimate quantities less than 1000 using referents.
- 1.6
- Illustrate, concretely & pictorially, the meaning of place value for numerals to 1000
- 1.7
- Describe and apply mental mathematics strategies for adding two 2-digit numerals.
- 1.8
- Describe and apply mental mathematics strategies for subtracting two 2-digit numerals.
- 1.9
- Apply estimation strategies to predict sums and differences of two 2-digit numerals in a problem solving context.
- 1.10
- Demonstrate an understanding of addition and subtraction of numbers with answers to 1000 (limited to 1, 2 and 3- digit numerals).
- 1.11
- Demonstrate an understanding of addition and subtraction of numbers with answers to 1000 (limited to 1, 2 and 3- digit numerals).
- 1.12
- Apply mental mathematics strategies and number properties, such as: using doubles; making 10
- 1.13
- using the commutative property; using the property of zero
- 1.14
- thinking addition for subtraction to determine answers for basic addition facts and related subtraction facts (to 18).
- 1.15
- Demonstrate an understanding of multiplication to 5 × 5.
- 1.16
- Demonstrate an understanding of multiplication to 5 × 5.
- 1.17
- Demonstrate an understanding of division (limited to division related to multiplication facts up to 5 × 5).
- 1.18
- Demonstrate an understanding of division (limited to division related to multiplication facts up to 5 × 5).
- 1.19
- Demonstrate an understanding of fractions by: explaining that a fraction represents a part of a whole
- 1.20
- describing situations in which fractions are used
- 1.21
- comparing fractions of the same whole with like denominators.
Key ideas
Counting by 100s changes the hundreds digit each jump.
We can add the tens, then the ones, then combine.
Multiplication is making equal groups, like 3 groups of 4.
We can start from any number, not just from 0.
Making a friendly number, like rounding to a ten, can help.
Watch out for
- Losing the jump size partway through.
- Mixing tens and ones together.
- Making groups that are not equal.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 2 · 4 skills
Patterns and Relations
Patterns & Relations
Increasing and Decreasing Patterns
Increasing patterns
I can describe, extend, compare, and create growing patterns.
Skill 2.1
Decreasing patterns
I can describe, extend, compare, and create shrinking patterns.
Skill 2.2
One-Step Equations
Missing-number addition equations
I can find the unknown in an addition equation.
Skill 2.3
Missing-number subtraction equations
I can find the unknown in a subtraction equation.
Skill 2.4
The official wording · 4 outcomes
- 2.1
- Demonstrate an understanding of increasing patterns by: describing, extending, comparing, creating patterns using manipulatives, diagrams, sounds and actions (numbers to 1000).
- 2.2
- Demonstrate an understanding of decreasing patterns by: describing, extending, comparing, creating patterns using manipulatives, diagrams, sounds and actions (numbers to 1000).
- 2.3
- Solve one-step addition and subtraction equations involving symbols representing an unknown number.
- 2.4
- Solve one-step addition and subtraction equations involving symbols representing an unknown number.
Key ideas
An increasing pattern grows by the same amount each step.
A symbol stands for the unknown number.
The rule tells how much it grows.
We can subtract to undo the addition, or think 'what makes the total?'.
A decreasing pattern shrinks by the same amount each step.
Watch out for
- Changing the growth amount partway through.
- Adding the two known numbers instead of finding the missing part.
- Making a pattern that does not increase.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 3 · 12 skills
Shape and Space
Time
Relating time to activities
I can connect units of time to real activities.
Skill 3.1
Seconds, minutes, and days
I know how seconds, minutes, and days fit into bigger units.
Skill 3.2
Measuring Length (cm and m)
Choosing referents for cm and m
I can pick a good referent for a centimetre and a metre.
Skill 3.3
How centimetres and metres relate
I know 100 centimetres make one metre.
Skill 3.4
Estimating length
I can estimate a length using a referent.
Skill 3.5
Measuring and recording length
I can measure and write down length, width, and height.
Skill 3.6
Measuring mass (g and kg)
I can measure and compare mass in grams and kilograms.
Skill 3.7
Perimeter and Shapes
Perimeter of regular shapes
I can find the perimeter of a regular shape.
Skill 3.8
Perimeter of irregular shapes
I can find the perimeter of an irregular shape.
Skill 3.9
Describing 3-D objects by their faces
I can describe a 3-D object by the shapes of its faces.
Skill 3.10
Counting edges and vertices
I can count the edges and vertices of a 3-D object.
Skill 3.11
Sorting polygons by their sides
I can sort polygons by how many sides they have.
Skill 3.12
The official wording · 12 outcomes
- 3.1
- Relate the passage of time to common activities using non-standard and standard units (minutes, hours, days, weeks, months, years).
- 3.2
- Relate the number of seconds to a minute, the number of minutes to an hour and the number of days to a month in a problem solving context.
- 3.3
- Demonstrate an understanding of measuring length (cm, m) by: selecting and justifying referents for the units cm and m
- 3.4
- modelling and describing the relationship between the units cm and m
- 3.5
- estimating length using referents
- 3.6
- measuring and recording length, width and height.
- 3.7
- Demonstrate an understanding of measuring mass (g, kg).
- 3.8
- Demonstrate an understanding of perimeter of regular and irregular shapes.
- 3.9
- Demonstrate an understanding of perimeter of regular and irregular shapes.
- 3.10
- Describe 3-D objects according to the shape of the faces, and the number of edges and vertices.
- 3.11
- Describe 3-D objects according to the shape of the faces, and the number of edges and vertices.
- 3.12
- Sort regular and irregular polygons, including: triangles, quadrilaterals, pentagons, hexagons, octagons, according to the number of sides.
Key ideas
Some activities take minutes, some take hours or days.
A referent is something we know that is about one unit.
Perimeter is the total distance around a shape.
We choose a sensible unit for how long something takes.
A fingernail is about a centimetre; a big step is about a metre.
Watch out for
- Mixing up which unit fits an activity.
- Choosing a referent much bigger or smaller than the unit.
- Adding only some of the sides.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 4 · 3 skills
Statistics and Probability
Collecting Data and Bar Graphs
Organizing data with tallies and line plots
I can organize data using tally marks and a line plot.
Skill 4.1
Organizing data with charts and lists
I can organize data using a chart or a list.
Skill 4.2
Building and reading bar graphs
I can build a labelled bar graph and read it.
Skill 4.3
The official wording · 3 outcomes
- 4.1
- Collect first-hand data and organize it using: tally marks, line plots, charts, lists to answer questions.
- 4.2
- Collect first-hand data and organize it using: tally marks, line plots, charts, lists to answer questions.
- 4.3
- Construct, label and interpret bar graphs to solve problems.
Key ideas
Tally marks count each response, grouping by fives.
A line plot marks each data point above a number line.
A chart puts data into labelled rows and columns.
A list keeps track of each response in order.
A bar graph uses bars whose heights show the counts.
Watch out for
- Forgetting to cross the fifth tally.
- Stacking line-plot marks unevenly.
- Leaving a chart column unlabelled.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Plan the term
Pick your term and the days you study. Each unit gets its share of the weeks and comes back a week later for a review. The last two weeks go over the whole course.
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The official curriculum
This page follows New Brunswick’s own curriculum for Mathematics, Grade 3.
Strands
| Strand | Outcomes | Taught in |
|---|---|---|
| NNumber | Outcomes 13 | Taught in Unit 1 |
| PRPatterns & Relations | Outcomes 3 | Taught in Unit 2Patterns and Relations |
| SSShape and Space | Outcomes 7 | Taught in Unit 3 |
| SPStatistics and Probability | Outcomes 2 | Taught in Unit 4 |
Study it in MapleMind
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Course Companion
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A fun way to keep Mathematics, Grade 3 organized, get to know your child better and see early when they need a hand. Fill it in on a screen, or print it.
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Questions about Mathematics, Grade 3
What is Mathematics, Grade 3?
New Brunswick’s Grade 3 math course: 4 units and 40 skills, from Number to Statistics and Probability.
What units are in Mathematics, Grade 3?
1. Number, 2. Patterns and Relations, 3. Shape and Space and 4. Statistics and Probability.
Is there a provincial exam for Mathematics, Grade 3?
No. New Brunswick gives no provincial exam for Mathematics, Grade 3.
What comes after Mathematics, Grade 3?
Mathematics, Grade 4.
Can MapleMind help with Mathematics, Grade 3?
Yes. MapleMind teaches every skill of Mathematics, Grade 3, step by step, with practice and checks, and its tutor answers questions about any of them. It’s free with daily limits, on iPhone, Android and the web.
Get ready for Mathematics, Grade 3
Practise every skill of Mathematics, Grade 3 in MapleMind, free with daily limits.
