A complete classroom-ready resource bundle for Chapter 4: Trigonometric Addition Formulae, covering compound-angle formulae, exact trigonometric values, double-angle formulae, trigonometric equations, R-form expressions, maximum/minimum problems, graphs, and proving trigonometric identities. Designed for Pearson Edexcel International A Level Mathematics.

The bundle supports independent study, classroom teaching, cover lessons, homework, extension work, and assessment preparation.

WHAT IS INCLUDED

• presentation_slides.pdf — complete teachable slide deck for classroom or cover-teacher delivery.
• student_notes.pdf - Student-facing notes with explanations, formulae, worked mini-examples, common mistakes, quick checks, and summary.
• worked_examples.pdf - Fully worked examples with clear step-by-step methods.
• practice_questions.pdf - Progressive original practice questions covering the full chapter sequence.
• challenge_questions.pdf - Higher-demand proof, equation-solving, and modelling-style questions.
• mini_assessment.pdf - A 38-mark exam-style assessment.
• mark_scheme.pdf - Full mark scheme for all practice, challenge, and assessment questions.
• lesson_plan.pdf - Teacher-facing lesson sequence and classroom delivery plan.
• teaching_notes.pdf - Explanatory teaching guidance, prompts, interventions, and mini-whiteboard checks.