Joe Rowing @jrowing.com 路 Nov 11 How does the mirror KNOW? (Spoiler: it doesn't, it's just reflection) www.geogebra.org/m/kfvrkxnf 7 likes 3 replies ? Reply Replies W. Brian Lane (he/him), PhD 路 Nov 12 This is really great at challenging a mental model I didn't realize I was holding onto. Lehrer mit Bart | NRW 路 Nov 12 It's the same mind helping the wall to throw that ball exactly(!) back at you... 馃珷 Joe Rowing 路 Nov 11 #iTeachPhysics and #I'mreallybadatrememberingtotag