Equations, Variables, Expressions, and Inequalities

Unknowns become equations, variables, expressions, inequalities, order of operations, exponents, and balance.

01Unknowns and truth

Decide truth and solve simple unknowns.

Truth Value Equations Equations Unknown Add Sub Variable As Unknown

02Expressions

Connect operations, properties, word statements, and evaluation.

Equations Unknown Mult Div Operations Properties Apply Algebraic Thinking Word to Expression Expression Evaluate

03Relations

Compare with inequalities and extend the number line.

Inequality Compare Negative Numbers Contexts

04Structure

Use order of operations, parentheses, exponents, and balance reasoning.

Order of Operations Basic Order of Operations Parentheses Exponents Squares Cubes Balancing equations

05Related branches

Related skills that connect through the same family.

Irrational numbers and rational approximation Square and cube roots Generate and identify equivalent expressions Integer exponent properties Algebraic expression manipulation: simplify, expand, factorise Inequalities and solution sets on number lines/graphs Represent simple inequality constraints on a number line Linear equations in one variable Negative number order and absolute value readiness Scientific notation / standard form and powers of ten Pairs of simultaneous linear equations