Sigma Notation – Edexcel IAL Pure 2 (Chapter 5.6) – Complete Lesson

A complete, ready-to-teach PowerPoint lesson on sigma notation for Pearson Edexcel International A Level Pure Mathematics 2 (WMA12). It covers reading and evaluating Σ notation. Students write out terms, find arithmetic and geometric sums in sigma notation (including sums that do not start at r = 1), find an unknown upper limit and evaluate an infinite sum.

What’s included (20 slides):

• Learning objectives, prior knowledge and key words
• 5-minute retrieval starter
• Explanation slide: Sigma notation
• 5 worked examples, built up one step per click, each followed by a “You Do” question with a full worked solution
• Common mistakes slide
• Practice questions with answers
• Exam-style question (5 marks) with full mark scheme
• Exit ticket and “Can I…” checklist
• Speaker notes on every slide

Follows section 5.6 of the Pearson Edexcel IAL Pure Mathematics 2 textbook, with Exercise 5F suggested for independent practice. All questions are original.

For video lessons, find Mr Edine Maths on YouTube (@mredinemaths).