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van den Berg, Ed; Hoekzema, Dick – Physics Education, 2006
Lessons about elementary particles at the secondary school level can degenerate into listing a zoo of particles and reactions, resulting in disorganized and rather meaningless knowledge. A more powerful way is to focus on conservation laws, symmetries and reaction diagrams. The conservation laws and symmetries provide generalizing power that…
Descriptors: High Schools, Foreign Countries, Pilot Projects, Teaching Methods