I am looking for a textbook on special relativity for school children. A background in simple vector based mechanics could be assumed. Primarily it needs to be readable at high school English reading level with minimal jargon, emphasising intuition and without introducing too much unnecessary mathematical baggage (tensors seem to be useful for GR but unnecessary in an intro to SR.) A more accessible alternative to vanilla SR mathematical calculations that directly models SR could also be a great bonus for aiding intuition, just as logs aid in the intuition of geometric progressions.
I've started reading Relativity and Common Sense, and it is amazingly readable, like a pop-science book, but in-depth and with real science. Bondi also uses doppler k-factors as a replacement for velocity which also aids intuition compared to matrices and gammas all over the place. Unfortunately, the e-book I've found is simply a PDF scan of the 40+ year old book and looks very dated, and there are only a few diagrams. Is there a modern equivalent that I should be looking at?
I've also looked at Algebra of Physical Space (Clifford Algebra) as an accessible methodology. It looks very easy to use, but I can't find a good textbook written for beginners. Unfortunately most of the material I've found are papers focussing on APS and convincing existing practitioners to convert to APS rather than a gentle introduction to SR that happens to use APS.
P.s. I'm not wanting to start a flame war about mathematical models of SR, I would just regard an intuitive mathematical model to be a bonus. These are school kids, they are not going to work at LHC next year.
To moderators: sorry that this question might not have a single clean-cut answer, but I expect that the answers will be based on experience and professional judgement rather than uninformed opinion :-)
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