Mathematics Year 9 · Stage 4-5

Number and Algebra

Surds, indices, simultaneous equations and the linear function, plus the financial mathematics of compound interest.

Dot points
10
Module
1 of 3
Course
Mathematics Year 9
01What this module asks of you

The 10 syllabus dot points in Number and Algebra

These are the statements the Mathematics Year 9 syllabus makes about Number and Algebra. Dux records each one against the questions you answer, so you can see which of them you have actually been tested on and which have never been asked.

  1. 01

    Index laws with zero and negative indices

    Index laws with zero and negative indices - Number and Algebra, Year 9.

  2. 02

    Scientific notation

    Scientific notation - Number and Algebra, Year 9.

  3. 03

    Surds and simplifying surds

    Surds and simplifying surds - Number and Algebra, Year 9.

  4. 04

    Expanding and factorising algebraic expressions

    Expanding and factorising algebraic expressions - Number and Algebra, Year 9.

  5. 05

    Linear equations and inequalities

    Linear equations and inequalities - Number and Algebra, Year 9.

  6. 06

    Simultaneous linear equations

    Simultaneous linear equations - Number and Algebra, Year 9.

  7. 07

    Linear functions: gradient and intercepts

    Linear functions: gradient and intercepts - Number and Algebra, Year 9.

  8. 08

    Direct and inverse proportion

    Direct and inverse proportion - Number and Algebra, Year 9.

  9. 09

    Compound interest and depreciation

    Compound interest and depreciation - Number and Algebra, Year 9.

  10. 10

    Rearranging formulas

    Rearranging formulas - Number and Algebra, Year 9.

02How it is examined

What a Number and Algebra question asks you to do

Year 9 Assessment Task Shape is 50 marks in 75 minutes. Questions on Number and Algebra are not one shape repeated: the command word decides what the marker is looking for, and the mark value decides how much of it. These are the ones Mathematics Year 9 uses.

calculate1calculate2–4explain2–3identify1justify4–6solve3–5

Dux writes practice for this module in exactly these shapes, so the drill is the same task the paper sets — not a general knowledge quiz with the module name on it.

03Where this module sits

Number and Algebra in the Mathematics Year 9 course

Number and Algebra opens the Mathematics Year 9 course. Students routinely lose marks because a question spans two modules, so the neighbouring modules are worth reading next to this one.

Start of courseNumber and Algebra
Next moduleMeasurement and Geometry10 dot points

Find the Number and Algebra dot points you have never been asked

Dux diagnoses Mathematics Year 9 dot point by dot point, then writes questions in the shape this course marks. Written answers come back marked against the bands.