Grade 9 Math
7 units matched to the Nova Scotia Curriculum.
Learning focus
- Number: Develop number sense.
- Patterns and Relations: Use patterns to describe the world and solve problems.
- Geometry: Describe the characteristics of 3-D objects and 2-D shapes, and analyse the relationships among them.
- Statistics and Probability: Collect, display and analyse data to solve problems, and use probability to represent and solve problems involving uncertainty.
Units
Unit 1
Exponents & Powers
Evaluating powers, using the product, quotient and power laws, working with powers of products and fractions, and order of operations with exponents.
Learning outcome: N01, N02, N04 · powers, exponent laws and scientific notation
Unit 2
Rational Numbers
Adding, subtracting, multiplying and dividing fractions and decimals that may be negative, converting between fractions and decimals, ordering rational numbers, and using BEDMAS.
Learning outcome: N03, N05, N06 · operations with rational numbers
Unit 3
Linear Relations
Finding slope from points and graphs, reading y = mx + b, finding intercepts, deciding whether a point is on a line, spotting parallel lines, and using rates of change in stories.
Learning outcome: PR01, PR02 · linear relations: tables, graphs and equations
Unit 4
Multi-Step Equations
Solving linear equations with brackets, fractions and variables on both sides, checking solutions, and turning word problems into equations.
Learning outcome: PR03, PR04 · solving linear equations in several steps
Unit 5
Polynomials
Naming polynomials by terms and degree, combining like terms, subtracting polynomials, multiplying and dividing by a constant, and substituting values for x.
Learning outcome: PR05, PR06, PR07 · adding, subtracting and multiplying polynomials
Unit 6
Surface Area of Objects
Finding the surface area of a rectangular prism, of two solids joined together (taking away the faces that are hidden), and of a cylinder written in terms of π.
Learning outcome: G01 · surface area of composite 3-D objects
Unit 7
Statistics in Society
Telling a population from a sample, spotting bias in who is asked and how, predicting from a sample, noticing misleading graphs, and why correlation is not causation.
Learning outcome: SP01, SP03 · collecting data and how statistics are used
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