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Incredibly useful resource site - has probably saved me hundreds of hours planning. Plenty of links, worksheets and interactive resources that support the new IB course.

Sarah Jackson, Diocesan School for Girls, New Zealand

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, Germany

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, Belgium

 Blogmore

InThinking student groups

7 July 2018

Imagine if you could ask your students to read a page of this website and your mark book automatically checked that they have done this reading... more

Using micro-organisms in IB Bio labs

31 May 2018

We cannot argue that micro-organisms are as important to our lives as photosynthesis. We shouldn't describe bacteria simply as harmful or beneficial,... more

Teacher planning pages - student access

4 May 2018

The student access for the teacher planning pages has just changed. Teachers can now turn on/off the student access to these page using the... more

Subscriber comments


  • Hi Edith, I'm assuming your student has heated fruit at different temperatures, and wants to look at the concentration of vitamin C left after the heat treatment. In this case the IV is the temperature of the heat treatment, and the DV is...
  • Hi David . My student estimate the concentration of vitamin C in fruit with spectrometer. The independent variable is the temperature.
  • Thank you David for such an elaborate answer.
  • 3 Jul David Faure
    Pituitary gland and hormones
    Dear Clarisse, Thanks for your question, I've just added some model answers to the page today. Remember you can control access to the model answers page using the Student access section of the site. Best wishes, David
  • Dear Aasma, Thanks for your question. I think the topic is a great idea, but only if your student can find a source of enough useable data to be able to choose data from the set to use, and thus control variables like age, gender etc. You...
  • 3 Jul David Faure
    Annotating IA Investigations
    Hi Amrit, Yes that is correct, the total length including appendices and references should be no more than 12 pages. If you have an appendix making the investigation 13 pages long, there is a risk of losing a mark in the COM criterion. It...
  • 28 Jun Amrit Mangat
    Annotating IA Investigations
    Also the guidelines state that the student will be penalized for the communication criteria, does this mean they cannot get 4 out 4 only? Thank you.
  • 28 Jun Amrit Mangat
    Annotating IA Investigations
    Hi David, Please can you advise. The guidelines state that the 'written' report should be no more 12 pages, does this include the appendix and references? Thank you. Amrit
  • 26 Jun Clarisse Mendoza
    Pituitary gland and hormones
    Hello David, Any model answers for the IB style questions?
  • THANK YOU!
  • Hi David, a student of mine is keen in investigating the positive correlation between smoking and cancer and has proposed a research question as, " To what extent cigarette smoke causes mutation in gene P53 and k-ras in smokers. She is not...
  • 24 Jun David Faure
    IB Biology - Introduction
    Hi Maheta, The IB examiners' report gives grade boundaries each year. As an approximate guide, Grade 4=44%, 5=55%, 6=66% and 7=77% Of course this varies according to the paper and the year. 80% is probably better for grade 7 too, but that...