We're bringing back a 90s classroom culture classic.
Zometool is playful enough to engage kids, but advanced enough to pop in numerous academic papers on math and theoretical physics.
It's the only product that we've used that's as geometrically expressive as magnetic spheres, and in some situations more so due to their rigid geometry. You can't bounce, crush or bend them like magnet structures, so 'tool' is an apt description.
Zometool is quintessential left brain scratcher developed before 'STEM' was coined. Fans of symmetry, clicky satisfaction, spatial visualization, and the golden ratio, should apply.
Designed in Colorado, and somehow still fully manufactured here too. Contains small parts, not for kids 3 and under.