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 1
Berlin, Germany, 30 October - 1 November 2026
Find out more
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 moreVirtual Think-Ins
Systems Thinking in the ESS Course
9 October 2026
Find out more
The new Extended Essay in DP Biology (first exams M27)
15 October 2026
Find out more
Teaching Statistics & Data Skills in DP Biology & ESS
3 November 2026
Find out moreInThinking Shorts
Getting the most out of InThinking Subject Sites
12 October 2026
Find out more
Getting the most out of InThinking Subject Sites
15 October 2026
Find out more
Find all InThinking events at
inthinking.net
Quote of the day
If a child is to keep alive his inborn sense of wonder, he needs the companionship of at least one adult who can share it, rediscovering with him the joy, excitement and mystery of the world we live in
InThinking
Supporting international schools with high quality PD & interactive online resources
Dynamic
Creative
Personal
Creative
Personal
Selected student pages
See all
Most popular
See all
Blog
Free
12 Aug 2026
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"This year is my first year teaching IB Biology. The In Thinking Biology site has proven to be immensely valuable to the quality and delivery of my lessons."
Karin Hartog
D Y Patil International School
"These Inthinking Biology activities are excellent! I was looking for something to break the monotony of a cells lesson so I tried the Cell types detective activity. Students loved it. Both the situation and the examples were brilliant"
Amit Khanna
Jakarta Intercultural School
Subscriber comments
-
Dear Eleni, Thanks for your comment. This morning the top menus have been updated. This adds more options to navigate to a specific page. Please click "Teacher only pages", try it and let me know if you think this improves the navigation?...
Topic tests -
Thanks for your comment. This morning the tech team have adjusted the top menus. This adds the ability to open each of the main sections of the site and navigate to a specific page. I've added in image below, please try it and let me know if you think...
Topic tests -
Dear Iwona, Thanks for your comment. Am I correct in thinking that you would prefer to have the 40 topics in a list, A1.1, A1.2, A1.3 etc.? Is it the grouping that is making the navigation confusing?Best wishes, David
Topic tests
David
Site authorDear Samuel,Thanks for your comment. I've just posted model answers for these questions.https://thinkib.net/biology/page/72478/atp-structure-and-function-model-answersBest...
ATP a suspected cause of long covid (2025)