Prince Edward Island · Grade 9
Mathematics, Grade 9
Prince Edward Island’s Grade 9 math course, from Number to Shape and Space.
- Units
- 3
- Lessons
- 7
- Skills
- 30
- Provincial exam
- Yes
- Official curriculum
- Prince Edward Island Department of Education
Unit by unit
Every skill in the course, with its official code.
Unit 1 · 13 skills
Number
Powers
Powers as repeated multiplication
I can write repeated multiplication as a power.
Official code: 9.N1
The zero exponent
I can explain why a power with a zero exponent equals one.
Official code: 9.N1
Solving problems with powers
I can solve problems using powers.
Official code: 9.N1
Operations on Powers
Multiplying powers
I can multiply powers with the same base.
Official code: 9.N2
Dividing powers
I can divide powers with the same base.
Official code: 9.N2
Power of a power
I can raise a power to a power.
Official code: 9.N2
Rational Numbers, Order of Operations, and Square Roots
Comparing and ordering rational numbers
I can compare and order rational numbers.
Official code: 9.N3
Operations on rational numbers
I can add, subtract, multiply, and divide rational numbers.
Official code: 9.N3
Order of operations with exponents
I can use the order of operations, including exponents.
Official code: 9.N4
Perfect squares
I can recognize and build perfect squares.
Official code: 9.N5
Square root
I can find the square root of a perfect square.
Official code: 9.N5
Square root of rational perfect squares
I can find the square root of a rational perfect square.
Official code: 9.N6
Approximate square root of non-perfect squares
I can estimate the square root of a rational non-perfect square.
Official code: 9.N7
The official wording · 13 outcomes
- 9.N1
- Demonstrate an understanding of powers with integral bases (excluding base 0) and whole number exponents by: • representing repeated multiplication using powers;
- 9.N1
- • using patterns to show that a power with an exponent of zero is equal to one;
- 9.N1
- • solving problems involving powers.
- 9.N2
- Demonstrate an understanding of operations on powers with integral bases (excluding base 0) and whole number exponents.
- 9.N2
- Demonstrate an understanding of operations on powers with integral bases (excluding base 0) and whole number exponents.
- 9.N2
- Demonstrate an understanding of operations on powers with integral bases (excluding base 0) and whole number exponents.
- 9.N3
- Demonstrate an understanding of rational numbers by: • comparing and ordering rational numbers;
- 9.N3
- • solving problems that involve arithmetic operations on rational numbers.
- 9.N4
- Explain and apply the order of operations, including exponents, with and without technology.
- 9.N5
- Demonstrate an understanding of perfect square and square root, concretely, pictorially and symbolically (limited to whole numbers).
- 9.N5
- Demonstrate an understanding of perfect square and square root, concretely, pictorially and symbolically (limited to whole numbers).
- 9.N6
- Determine the square root of positive rational numbers that are perfect squares.
- 9.N7
- Determine an approximate square root of positive rational numbers that are non- perfect squares.
Key ideas
A power has a base and an exponent, like 2^4.
To multiply powers with the same base, add the exponents.
Rational numbers include positive and negative fractions and decimals.
The exponent counts how many times the base is multiplied.
The law follows from writing out the repeated factors.
Watch out for
- Multiplying the base by the exponent.
- Multiplying the exponents when multiplying powers.
- Thinking -3/4 is greater than -1/2.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 2 · 11 skills
Patterns and Relations
Patterns, Equations, and Inequalities
Generalizing a pattern with a linear equation
I can write a linear equation for a pattern and verify it.
Official code: 9.PR1
One-step linear equations
I can solve one-step linear equations.
Official code: 9.PR2
Two-step linear equations
I can solve two-step linear equations.
Official code: 9.PR2
Equations with variables on both sides
I can solve equations with the variable on both sides.
Official code: 9.PR2
Bracketed and distributive equations
I can solve equations that involve brackets.
Official code: 9.PR2
Single-variable linear inequalities
I can solve a single-variable linear inequality.
Official code: 9.PR3
Polynomials
Understanding polynomials
I can identify the parts of a polynomial.
Official code: 9.PR4
Adding polynomials
I can add polynomials by combining like terms.
Official code: 9.PR5
Subtracting polynomials
I can subtract polynomials.
Official code: 9.PR5
Multiplying polynomials by monomials
I can multiply a polynomial by a monomial.
Official code: 9.PR6
Dividing polynomials by monomials
I can divide a polynomial by a monomial.
Official code: 9.PR6
The official wording · 11 outcomes
- 9.PR1
- Generalize a pattern arising from a problem-solving context using linear equations and verify by substitution.
- 9.PR2
- Model and solve problems using linear equations of the form: • ; ax b = • , 0; x b a a = where a, b, c, d, e and f are rational numbers.
- 9.PR2
- Model and solve problems using linear equations of the form: • ; ax b c + = • , 0; x b c a a + = where a, b, c, d, e and f are rational numbers.
- 9.PR2
- Model and solve problems using linear equations of the form: • ; ax b cx = + • ; ax b cx d + = + where a, b, c, d, e and f are rational numbers.
- 9.PR3
- Explain and illustrate strategies to solve single variable linear inequalities with rational coefficients within a problem-solving context.
- 9.PR4
- Demonstrate an understanding of polynomials (limited to polynomials of degree less than or equal to 2).
- 9.PR5
- Model, record and explain the operations of addition and subtraction of polynomial expressions, concretely, pictorially and symbolically (limited to polynomials of degree less than or equal to 2).
- 9.PR5
- Model, record and explain the operations of addition and subtraction of polynomial expressions, concretely, pictorially and symbolically (limited to polynomials of degree less than or equal to 2).
- 9.PR6
- Model, record and explain the operations of multiplication and division of polynomial expressions (limited to polynomials of degree less than or equal to 2) by monomials, concretely, pictorially and symbolically.
- 9.PR6
- Model, record and explain the operations of multiplication and division of polynomial expressions (limited to polynomials of degree less than or equal to 2) by monomials, concretely, pictorially and symbolically.
Key ideas
A pattern's rule can be written as a linear equation.
A polynomial is made of terms with variables and coefficients.
We verify the equation by substituting known terms.
The degree is the highest exponent, up to 2 here.
We undo a single operation to isolate the variable.
Watch out for
- Using only the difference, not the full equation.
- Confusing a coefficient with a variable.
- Skipping the verification step.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 3 · 6 skills
Shape and Space
Pythagorean Theorem and Surface Area
Understanding the Pythagorean theorem
I can state the Pythagorean theorem and explain why it works.
Official code: 9.SS1
Applying the Pythagorean theorem
I can use the Pythagorean theorem to find a missing side.
Official code: 9.SS1
Surface area of composite objects
I can find the surface area of a composite solid.
Official code: 9.SS2
Similarity and Scale Diagrams
Recognizing similar triangles
I can decide whether two triangles are similar.
Official code: 9.SS3
Solving with similar triangles
I can use similar triangles to find a missing length.
Official code: 9.SS3
Scale diagrams
I can draw and interpret a scale diagram.
Official code: 9.SS4
The official wording · 6 outcomes
- 9.SS1
- Develop and apply the Pythagorean theorem to solve problems.
- 9.SS1
- Develop and apply the Pythagorean theorem to solve problems.
- 9.SS2
- Determine the surface area of composite 3D objects to solve problems.
- 9.SS3
- Demonstrate an understanding of similarity of triangles.
- 9.SS3
- Demonstrate an understanding of similarity of triangles.
- 9.SS4
- Draw and interpret scale diagrams of 2D shapes.
Key ideas
In a right triangle, the square on the hypotenuse equals the sum of the squares on the legs.
Similar triangles have equal corresponding angles.
The relationship holds only for right triangles.
Their corresponding sides are proportional.
We rearrange a^2 + b^2 = c^2 to find any missing side.
Watch out for
- Using the theorem on a non-right triangle.
- Thinking equal angles alone without checking correspondence.
- Putting a leg where the hypotenuse belongs.
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.
The official curriculum
This page follows Prince Edward Island’s own curriculum for Mathematics, Grade 9.
Textbooks
The textbooks PEI Department of Education and Early Years lists for Mathematics, Grade 9:
- MathLinks 9
From Intermediate Program of Studies and Authorized Materials, 2026-2027, read October 27, 2026. princeedwardisland.ca
Study it in MapleMind
MapleMind teaches Mathematics, Grade 9 one skill at a time. Each skill gets a short lesson, practice as you go and a check worth up to three stars. It remembers where you stopped.
Course Companion
Your year in one workbook
A fun way to keep Mathematics, Grade 9 organized, get to know your child better and see early when they need a hand. Fill it in on a screen, or print it.
- Pages
- 25
- Fillable fields
- 1,360
- Price
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Questions about Mathematics, Grade 9
What is Mathematics, Grade 9?
Prince Edward Island’s Grade 9 math course: 3 units and 30 skills, from Number to Shape and Space.
What units are in Mathematics, Grade 9?
1. Number, 2. Patterns and Relations and 3. Shape and Space.
Is there a provincial exam for Mathematics, Grade 9?
Yes. The School-based Assessment in Grade 9 Mathematics is written in Prince Edward Island. Next sitting: June 1, 2027.
What textbook does Mathematics, Grade 9 use?
The textbooks PEI Department of Education and Early Years lists for Mathematics, Grade 9: MathLinks 9, McGraw-Hill Ryerson.
What comes after Mathematics, Grade 9?
Foundations of Mathematics and Pre-Calculus 10 and Apprenticeship and Workplace Mathematics 10.
Can MapleMind help with Mathematics, Grade 9?
Yes. MapleMind teaches every skill of Mathematics, Grade 9, 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 9
Practise every skill of Mathematics, Grade 9 in MapleMind, free with daily limits.
