Grade 9 Math
7 units matched to the New Brunswick Curriculum.
Learning focus
- Number: Number Sense. Describe numbers, ways of representing numbers, relationships among numbers, and number systems.
- Number: Operations. Apply the order of operations, including exponents.
- Statistics and Probability: Data Analysis. Compare and critique the presentation of data.
- Statistics and Probability: Chance and Uncertainty. Describe theoretical, experimental, and subjective probability in society.
- Patterns and Relations: Algebra. Solve linear equations ax = b (xa) = b, a≠0 ax+b = c (xa)+b = c, a≠0 ax = b+cx a(x+b) = c ax+b = cx+d a(bx+c) = d(ex+f) (ax) = b, x≠0 where a, b, c, d, e, and f are rational numbers .
- Shape and Space: Measurement. Estimate and measure using personal referents and measurement tools.
- Shape and Space: 3D Objects and 2D Shapes. Describe polygons and 3D objects.
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.
Skill descriptor: Number: Operations · 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.
Skill descriptor: Number: Operations · 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.
Skill descriptor: Patterns and Relations: Algebra · 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.
Skill descriptor: Patterns and Relations: Algebra · 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.
Skill descriptor: Patterns and Relations: Algebra · 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.
Skill descriptor: Shape and Space: 3D Objects and 2D Shapes · 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.
Skill descriptor: Statistics and Probability: Data Analysis · collecting data and how statistics are used
Ready to try Gradelings?
Curriculum-matched practice for Kindergarten to Grade 9 in British Columbia and Ontario and Alberta and Saskatchewan and Manitoba and Yukon and Northwest Territories and Nova Scotia and New Brunswick, with kind hints, learning games and no ads. Subscribe now, or try everything free for 30 days with no card.