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Very sorry to hear this - I enjoyed several Bio thinkins with Richard leading. 

Dear Sarah, The IB's teachers' support material on myIB has a range of IA's with moderators comments and marks. There are some without annotations, that you could use like this with students.Best wishes, David

Good afternoon David. I am saddened to hear this. Richard has been my mentor since i met him during a workshop in Mombasa. All I can say is May he rest in peace. I will miss him

Hi Susan, This page has been updated to include the new questions about spiders. Best wishes, David

Dear Lauren,  Thanks for your comment.  I can see that the link you clicked has taken you to the model answers which were for the Natural selection activity for the old guide.  Please use the model answers on the Exams from 2025 section,...

Hi Monira,  I have now made a page of model answers. While doing that I have improved the lesson by focusing the first activity more closely to those structures of the brain named in the guide, which students need to know about. I replaced visual...

This doesn't match the original question sheet.

Dear Monira, Thanks for your request. I expect you are referring to activity 1, the labels for the Brain diagram. I'll add some model answers for this activity in the morning. Activity 2 and Activity 3 already have model answers, you can...

Dear Lauren, Thanks for your comment, you make a good point.  The new Biology Data booklet for exams beginning 2028 contains a diagram of a single amino acid. Therefore if students are asked to describe the structure of a di-peptide (as question...

Dear Elizabeth, Thanks for your comment. Yes, this update to the Ensembl site does change the look of things.  I'll fix this as soon as I can.Best wishes, David