# Formulate and manipulate expressions: Year 9 – planning tool

This planning resource for Year 9 is for the topic of Formulate and manipulate expressions. Students move beyond expanding and factorising linear expressions, such as 3(2x – 1) or 4x + 6, to working with monic quadratic expressions (that is, where the coefficient of the square term is 1). This involves expanding expressions of the form (x + a)(x + b), such as (x + 2)(x – 8), and factorising expressions of the form x2 + mx + n, such as x2 –  4x + 3.

Year level(s) Year 9
Audience Teacher
Purpose Planning support, Teaching resource, Teaching strategies, Student task, Home practice tasks
Format Web page
Keywords lesson plans, assessment task, teaching strategies, pedagogies, Australian Curriculum, learning from home, misconceptions

## Curriculum alignment

Strand and focus Algebra
Topics Algebraic expressions, Indices
AC: Mathematics (V9.0) content descriptions
AC9M9A02
Simplify algebraic expressions, expand binomial products and factorise monic quadratic expressions

Numeracy progression Number patterns and algebraic thinking (P9)