Nova Scotia · Grade 9
Mathematics, Grade 9
Nova Scotia’s Grade 9 math course, from Number to Statistics and Probability.
- Units
- 4
- Lessons
- 8
- Skills
- 31
- Provincial exam
- None
- Official curriculum
- Nova Scotia Department of Education and Early Childhood Development
Unit by unit
Every skill in the course, with its official code.
Unit 1 · 10 skills
Number
Powers and exponents
Powers as repeated multiplication
I can write repeated multiplication as a power and evaluate it.
Official code: N01
The zero exponent
I can explain why any non-zero base to the power zero equals one.
Official code: N01
Solving problems with powers
I can solve problems that involve powers.
Official code: N01
Exponent laws and rational numbers
The exponent laws
I can apply the exponent laws to simplify expressions.
Official code: N02
Sum and difference of powers
I can add and subtract powers and spot exponent-law errors.
Official code: N02
Comparing and ordering rational numbers
I can compare and order positive and negative rational numbers.
Official code: N03
Operations on rational numbers
I can add, subtract, multiply, and divide rational numbers.
Official code: N03
Order of operations and square roots
Order of operations with exponents
I can apply the order of operations including exponents.
Official code: N04
Exact square roots of rationals
I can find the exact square root of a rational perfect square.
Official code: N05
Approximate square roots of rationals
I can estimate the square root of a rational that is not a perfect square.
Official code: N06
The official wording · 10 outcomes
- N01
- representing repeated multiplication using powers
- N01
- using patterns to show that a power with an exponent of zero is equal to one
- N01
- solving problems involving powers
- N02
- demonstrate an understanding of operations on powers with integral bases (excluding base 0) and whole number exponents
- N02
- demonstrate an understanding of operations on powers with integral bases (excluding base 0) and whole number exponents
- N03
- demonstrate an understanding of rational numbers by comparing and ordering rational numbers
- N03
- solving problems that involve arithmetic operations on rational numbers
- N04
- explain and apply the order of operations, including exponents, with and without technology
- N05
- determine the exact square root of positive rational numbers
- N06
- determine an approximate square root of positive rational numbers
Key ideas
A power has a base and an exponent; the exponent counts the factors.
Multiplying powers with the same base adds exponents.
Evaluate brackets first, then exponents, then × and ÷, then + and −.
2³ means 2 × 2 × 2, not 2 × 3.
Dividing powers with the same base subtracts exponents.
Watch out for
- Reading 2³ as 2 × 3 = 6.
- Multiplying exponents when multiplying powers.
- Doing multiplication before the exponent.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 2 · 15 skills
Patterns and Relations
Linear equations and relations
Generalizing a pattern with a linear equation
I can write a linear equation for a pattern and verify it.
Official code: PR01
Graphing and analyzing a linear relation
I can graph a linear relation and match it to its equation.
Official code: PR02
Interpolating and extrapolating
I can interpolate and extrapolate from a linear graph.
Official code: PR02
Solving linear equations symbolically
I can solve a linear equation with rational numbers.
Official code: PR03
Modelling problems with linear equations
I can model a word problem with a linear equation and solve it.
Official code: PR03
Linear inequalities
Translating and testing inequalities
I can write an inequality for a situation and test values.
Official code: PR04
Solving inequalities by adding and subtracting
I can solve an inequality by adding or subtracting.
Official code: PR04
Multiplying or dividing an inequality by a negative
I can solve an inequality and flip the symbol when dividing by a negative.
Official code: PR04
Graphing and solving inequality problems
I can graph an inequality's solution and solve a problem.
Official code: PR04
Polynomials
Modelling and identifying polynomials
I can model a polynomial and name its parts.
Official code: PR05
Equivalent polynomial expressions
I can recognize equivalent polynomials and link one to a context.
Official code: PR05
Adding polynomials
I can add polynomials by combining like terms.
Official code: PR06
Subtracting polynomials
I can subtract polynomials.
Official code: PR06
Multiplying a polynomial by a monomial
I can multiply a polynomial by a monomial.
Official code: PR07
Dividing a polynomial by a monomial
I can divide a polynomial by a monomial.
Official code: PR07
The official wording · 15 outcomes
- PR01
- generalize a pattern arising from a problem-solving context using a linear equation and verify by substitution
- PR02
- graph a linear relation, analyze the graph
- PR02
- interpolate or extrapolate to solve problems
- PR03
- model and solve problems, where a, b, c, d, e, and f are rational numbers, using linear equations of the form
- PR03
- model and solve problems, where a, b, c, d, e, and f are rational numbers, using linear equations of the form
- PR04
- explain and illustrate strategies to solve single variable linear inequalities with rational coefficients within a problem-solving context
- PR04
- explain and illustrate strategies to solve single variable linear inequalities with rational coefficients
- PR04
- solve single variable linear inequalities with rational coefficients within a problem-solving context
- PR04
- explain and illustrate strategies to solve single variable linear inequalities with rational coefficients within a problem-solving context
- PR05
- demonstrate an understanding of polynomials (limited to polynomials of degree less than or equal to 2)
- PR05
- demonstrate an understanding of polynomials (limited to polynomials of degree less than or equal to 2)
- PR06
- model, record, and explain the operations of addition and subtraction of polynomial expressions, concretely, pictorially, and symbolically
- PR06
- operations of addition and subtraction of polynomial expressions, concretely, pictorially, and symbolically
- PR07
- 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
- PR07
- 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.
The symbols ≥, >, <, ≤ express 'at least', 'more than', 'less than', 'at most'.
A polynomial is a sum of terms with variables and coefficients.
The equation connects a term number to its value.
An inequality has many solutions, not just one.
Watch out for
- Capturing only the constant, missing the rate of change.
- Choosing the wrong symbol (using > for 'at least').
- Confusing the coefficient with the constant term.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 3 · 2 skills
Geometry
Surface area of composite objects
Surface area and overlap of composite objects
I can account for hidden overlap when finding surface area of a composite object.
Official code: G01
Solving composite surface-area problems
I can find the total surface area of a composite object.
Official code: G01
The official wording · 2 outcomes
- G01
- determine the surface area of composite 3-D objects to solve problems
- G01
- determine the surface area of composite 3-D objects to solve problems
Key ideas
A composite object is built from simpler solids.
Where two solids meet, the touching faces are hidden.
The hidden overlap must be subtracted from the total.
Find the surface area of each part.
Subtract the overlapping (hidden) areas.
Watch out for
- Adding the surface areas without subtracting the overlap.
- Subtracting the overlap only once instead of from both faces.
- Forgetting to subtract the overlap.
Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit
Unit 4 · 4 skills
Statistics and Probability
Data collection and a project plan
Factors affecting data collection
I can identify factors that bias or distort data collection.
Official code: SP01
Formulating a question and choosing a method
I can frame a research question and pick a fair collection method.
Official code: SP03
Selecting a sample and collecting data
I can select a sample and collect data for my question.
Official code: SP03
Displaying data and drawing conclusions
I can display my data and draw a conclusion to answer my question.
Official code: SP03
The official wording · 4 outcomes
- SP01
- describe the effect on the collection of data of bias, use of language, ethics, cost, time and timing, privacy, and cultural sensitivity
- SP03
- formulating a question for investigation o choosing a data collection method that includes social considerations
- SP03
- selecting a population or a sample o collecting the data
- SP03
- displaying the collected data in an appropriate manner o drawing conclusions to answer the question
Key ideas
Wording, timing, and who is asked can bias data.
Ethics, privacy, and cultural sensitivity matter in collection.
Cost and time constrain how data is gathered.
A good question is clear and answerable with data.
The method must suit the question and be socially responsible.
Watch out for
- Assuming any collected data is automatically fair.
- Overlooking how question wording shapes answers.
- Writing a question too vague to answer with data.
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 Nova Scotia’s own curriculum for Mathematics, Grade 9.
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
- 29
- Fillable fields
- 1,424
- Price
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Questions about Mathematics, Grade 9
What is Mathematics, Grade 9?
Nova Scotia’s Grade 9 math course: 4 units and 31 skills, from Number to Statistics and Probability.
What units are in Mathematics, Grade 9?
1. Number, 2. Patterns and Relations, 3. Geometry and 4. Statistics and Probability.
Is there a provincial exam for Mathematics, Grade 9?
No. Nova Scotia gives no provincial exam for Mathematics, Grade 9.
What comes after Mathematics, Grade 9?
Mathematics 10 and Mathematics at Work 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.
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Practise every skill of Mathematics, Grade 9 in MapleMind, free with daily limits.
