Read this writing by @Trianglemancsd. It's important. Kids (and all people) are more mathematical than people usually give them (and themselves) credit for. Honour their inner mathematicians and their intelligence by giving them a chance to talk about it.
"Calling bullshit"—a book based on a course of the same name at the University of Washington—is a wonderful guide to making sense of the deluge of misinformation that surrounds us: https://t.co/pH7iM2otSZ. No matter how much you know, you're likely to learn something reading it.
Do flexible classrooms work? "[They] are successful because they go hand in hand with a change in pedagogy...Changing the layout of your classroom will almost certainly have no impact at all—if you don’t change your teaching too." https://t.co/HinWdH29hP