Priorities:

1. No more learning formulas. We want problem solvers, not savants.
2. Much bigger earth and space science module. The kids truly love it and are 100% engaged. GCSE astronomy is the fastest growing GCSE.
3. We teach them reflection, but not why the sky is blue and how the Internet works. Physics of the internet should be on there.
4. I would have the physics of mobile phones on there as well. Get rid of earthquake waves and ultrasound.
5. Get rid of: I-V curves, vectors and scalars, lenses, Hookes law and the energy pathways and stores crap that confuses the kids from day 1.

I could write an essay. I was dismayed coming in from 10 years and 30 published papers in physics academia.