apt4Maths: INEQUALITIES PowerPoint for GCSE Maths (Lesson 12 of 14 on Equations & Inequalities)

PowerPoint Presentation on Inequalities (23 slides): Reviews the symbols for inequalities before explaining how to represent inequalities on number lines and as regions on a graph. It has been written by a highly experienced teacher (of 25+ years), senior examiner and reviser for Maths and Stats examinations. It includes:

Lesson objectives
Step-by-step explanations of the subject matter
Examples to aid understanding
Questions to check understanding
Answers to questions, with explanations
Suggestions regarding which topic(s) should be moved on to next.

It is 1 of 14 PowerPoint Presentations on Equations and Inequalities that APT Initiatives has published for GCSE (and Key Stage 3) Maths. The complete set of 14 PowerPoint Presentations (208 slides, excluding Title Pages) covers the following topics relating to ‘Equations & Inequalities’:

01 Linear Equations – Simple (20 slides).
02 Linear Equations – Unknowns Both Sides (9 slides).
03 Linear Equations – Brackets (11 slides).
04 Solving Equations – Trial and Improvement (13 slides).
05 Quadratic Equations – Factorising (10 slides).
06 Quadratic Equations – Completing Square (9 slides).
07 Quadratic Equations – Using Formula (10 slides).
08 Iterative Methods (15 slides).
09 Simultaneous Equations – Using Graphs (19 slides).
10 Simultaneous Equations – Elimination (18 slides).
11 Simultaneous Equations - Substitution (21 slides).
12 Inequalities (23 slides).
13 Inequations (16 slides).
14 Expressions and Equations (14 slides).

These PowerPoint Presentations relate to the ‘Algebra’ sections of the Maths specifications. Other sets relating to Algebra concern:

Algebraic Manipulation
Graphs
Types of Number and Sequences

Note: Work on algebraic fractions is included in APT’s set of PowerPoints on ‘Fractions’. Work on proofs and identities is included in APT’s set of PowerPoints on ‘Algebraic Manipulation’.

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