Two Material Explorations for Early Childhood Tinkering Ryan JenkinsDecember 11, 2025Science et Cité, early childhood tinkering, young learners, young tinkerers, bern, workshop, brainstorming, thinking routines, roly poly rollers, the tinkering workshop, two materials building sets, everyday materials, lite brite, kaleidoscope, hinged mirror, angled mirror, duplo, cars, cars and ramps, velcro, rolling