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 policyDisclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.
Don't miss out, find out!
- Free trials Take out a one month free trial today!
- Newsletters Subscribe to our FREE subject site newsletters.
Recommendations
Read what users are saying about the site.Video overview
Site authors
IB Approved Workshops
Biology
IB DP Category 2
Paris, France, 13 - 15 November 2026
Find out more
Environmental systems and societies: A focus on internal assessment
IB DP Category 3
Paris, France, 13 - 15 November 2026
Find out more
Biology
IB DP Category 2
Barcelona, Spain, 12 - 14 February 2027
Find out more
Virtual Think-Ins
Find all InThinking events at
inthinking.net
Quote of the day
Discovery consists of seeing what everybody has seen and thinking what nobody has thought.”
InThinking
Supporting international schools with high quality PD & interactive online resources
Creative
Personal
Selected student pages
See allMost popular
See allBlog
Free
Richard Scarr
It is with great sadness that we have to announce the passing of Richard Scarr. He was always an enthusiastic biologist and a dedicated educator. After reading Biology at Kings College in London he taught...
Exam practice questions
Over the summer we have completed a full set of exam practice question pages, one for each topic. These pages are great for homework or revision. The Exam practice concept; The pages all have “exam practice”...
Recommendations
See all"If you are looking for a reliable source to help you plan and teach the new IBDP Biology course, this website is a must."
Mandy Watson
Berlin International School
"This is an excellent resource for any IB Biology teacher. David Faure has many years of IB teaching experience and some great ideas and suggestions particularly on the integration of technology in the classroom. We use this as an additional source of..."
Maria Schram
British School of Brussels
Subscriber comments
-
Hello, where can I find the revision quiz for reproduction?
D3.1 Reproduction - planning sheet -
Extremely sad to hear this.He contributed so much to teaching. He will always be remembered.
Richard Scarr -
Could you please check the cladograms at the bottom of the first page of the "Using DNA sequences to build cladograms" worksheet? The first and third cladograms are the same. I think B and A need to be swapped in the third one.
Reclassifying using DNA, cladistics & rRNA (2025)
Samuel
Hello, Where can I find the reproduction revision quiz? Is there no longer a quiz folder?
D3.1 Reproduction - student friendly summary