Here is a written solution to the circular motion investigation from the Oxford IB Mathematics AI HL textbook (Chapter 12, Investigation 3, Page 544).

This is a useful checklist for students as they progress through the IB Maths AA SL course. It maybe especially useful in the run up to mock exams and final exams.

A useful fill-in sheet to introduce histograms by first looking at equal class intervals and then by looking at changing them. The ‘answer’ sheet helps to see how I have used it in the classroom.

A useful fill-in sheet for explaining independent events and how they appear with tree diagrams. I have included my explanations on the teacher notes provided.

A short general knowledge quiz with questions based on sport, film and music. Suitable for use with a form class. Should take approximately 10 to 15 minutes.

A short general knowledge quiz based on random questions. Would be useful for a form class.

This is an interesting question that requires students to think deeply about the problem. As a hint, you can ask the students to split the rectangle horizontally through the point P and look at the right-angled triangles formed. I have provided a solution to the problem too.