Here is the problem:
Teacher notes:
Level of difficulty: The first parts of this are accessible for all. The last part would be accessible for strong HL students.
Syllabus knowledge required: None.
This is a good introduction to the need to check that all solutions are found! It is likely that students will miss lots of answers. This also demonstrates more formal mathematical techniques for proof
You can download the pdf answer here.
I am Head of Mathematics at a leading international school in Thailand. I am also a current IB examiner for the IB Mathematics coursework with an MSc. in Mathematics. Some of my websites include: ibmathsresources.com and intermathematics.com. These are used by millions of students for IA ideas and support IB teachers across hundreds of schools worldwide. I have led webinars for IB teachers on the coursework process and have written hundreds of blog posts and articles exploring interesting coursework ideas. I thought it was time to make a course to share this with the IB community - I hope it is useful! View more posts
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