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For each of us who appear to have had a successful experiment there are many to whom their own experiments seem barren and negative, but they contribute their strength to the structure within which we all build.
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5 Oct 2026
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...
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See all"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..."
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"If you are looking for a reliable source to help you plan and teach the new IBDP Biology course, this website is a must."
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Subscriber comments
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I find these very useful
40 revision sheets "5 essentials" -
Dear InThinking-TeamThere is a mistake in one of the questions of this topic exam. Maybe that's what the previous comment wants to say...Question 7 should say: "a drop blood pH" and not "a rise in blood pH. Best regards, Sasrah
C3.1 Integration of body systems - topic test -
Thanks Jay, I've repaired this link
Eutrophication & Biomagnification (2025)
Lucinda
I agree with Sally - we can no longer provide direct access to students for the topic tests? They are now exclusively accessible to teachers whereas before we had a choice to make them accessible? Would be much easier than downloading and uploading...
Topic tests