Developed years ago & it works! Loath to bin it when so much more fun can be had esp kids in summer hols! Trebuchet: medieval device for lobbing boiling oil & rocks at enemy castles. Principles of leverage hard wired into instincts long before formal teaching 8n Yr7 & Yr8 Maths & DT... decent history too.
Quaker: apologises for military metaphor (but u dont have to tell 'em that!)
Educational toy: leverage - trebuchet (Fiveways BN1)
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