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  • Last May exam

    Students seem generally upbeat about the last set of May examinations for the 'legacy' Subject Guide.A glance at Paper 1 suggests that all is...

  • Following footsteps

    I recently had the great privilege of being selected to speak at an event hosted by some of my students: TEDxUWCRCN.This was special because...

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  • 22 May 2024
    Emma Mitchell
    B5 plan: Current and circuits
    Hi Pauline, you are absolutely right. They are no longer explicitly referred to in the Guide. Saying this, when writing the textbook Chris and I had an IB reviewer (in addition to our publisher review) and were permitted to refer to the underlying...
  • 22 May 2024
    Emma Mitchell
    C3 MCQs: EM waves
    Done! You are right about not needing to remember the factor (at least, I don't require it) but in my experience students do appreciate having some clarity about these things.
  • 22 May 2024
    Emma Mitchell
    C2 MCQs: Sound waves
    Hi Benson, regarding Q2, I guess you've hit upon a nice Nature of Science discussion for your class! Regarding Q5, I don't think it would appear as an exam question, but I think it's good if students learn how we can hear conversations in the...
  • 22 May 2024
    Emma Mitchell
    C3 test: Multi slit interference
    Hi Benson, do you mean that when the number of slits exceeds two we go from double-slit 'mode' into diffraction grating 'mode'? I don't think so; the phrase "secondary maxima" doesn't appear in the Guide (even though "intensity patterns" does).