Maths IBAA – 1.61 Simple deductive proof

Simple deductive proof– Maths IB AA – HL

Description: This Maths PowerPoint presentation introduces students to the concept of Simple Deductive Proof, an essential skill for logical reasoning and algebraic generalisation in the IB Analysis and Approaches Standard Level syllabus. Featuring 11 well-structured slides, it guides learners through the principles of proof by deduction using familiar notation, identities, and algebraic manipulation.

The presentation explains how to use generalised algebraic expressions to establish the truth of statements for all possible cases, rather than individual examples. Through worked examples—such as proving properties of consecutive numbers and verifying identities—students gain confidence in constructing logical and rigorous arguments.

Included is a detailed inquiry-based lesson plan that encourages exploration and student-led reasoning, along with a worksheet of exam-style questions and fully worked solutions. This resource is ideal for promoting mathematical thinking, classroom discussion, and exam preparation.

Whether used as an introduction or reinforcement, this Maths resource develops students’ proof-writing skills in a clear and accessible way.

Content:

• PowerPoint presentation
• Detailed Lesson Plan (pdf)
• Worksheet with Exam style questions(pdf)
• and Solutions (pdf)

File size:

• PPTX (229 KB)
• PDF (146 KB)
• PDF (410 KB)
• PDF (528 KB)

Number of slides:

11 slides

Preview: