Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

Consecutive Proofs

QED. You might have seen those three letters and wondered what they mean. ‘Quod erat demonstrandum’ is latin for ‘that which was to be demonstrated’. In mathematics we don’t like uncertainty; we like to be absolutely sure of the results we have found, which is why we always like to prove our conjectures. Proof is not always easy, but it is very satisfying! In this activity you will be looking at consecutive numbers...


Tags: challenge; conjecturing; investigation; proof; simplifying; manipulating algebraic expressions

Help