It’s interesting so far! Here are some passages that caught my attention: Emotion is a bit harder to define. Emotions were long thought to be dumb and visceral, but beginning in the 1980s, scientists increasingly recognized that emotions were filled with cognition. Emotions occur in steps, the first of which is to appraise something that […]
European refugees who had managed to escape the Nazis and made it to Britain, were rounded up as “enemy aliens” in 1940. Many were interned on the Isle of Man, and 2,300 were sent to Canada, mostly Jews. They were transported on the same boats as German and Italian POWs. They were sent to camps in New […]
From Classic Set Theory: Use appropriate axioms out of Zermelo-Franekel axioms 1-6 to show that is not a set. I’m fascinated by sets that go wrong, and I was surprised that set of all singletons leads to trouble. Here’s my best attempt at explaining what goes wrong. The issue with “is a singleton” as the […]
Although teachers must recognize they are teaching more than just mathematics, they also have to reconcile that fact with the idea that, ultimately, they are responsible for helping students learn mathematics. Teachers who are committed to equity cannot concern themselves with their students’ self-esteem and negotiated identities to the exclusion of the mathematics that the […]
I’m falling in love with Classic Set Theory, an introductory set theory text. The introduction to Russell’s paradox motivates it in a way that I’d never seen before. When I’ve thought about Russell’s paradox in the past I’ve sometimes thought, ok, this makes sense, but how did he come up with this? Or, even, what line of […]
https://tooteeter.blogspot.com/2017/12/8-12-by-12-inch-paper-cardinal-vs.html How did you get into my 3rd Grade classroom?? I was dealing with all of this just a few weeks ago. My situation was slightly different, and because it informs my thoughts about your questions, I”ll share it here. I decided to move to measurement out of frustration with my students’ ability to subtract. […]
So apparently the minhag was for parents to switch off naming the children in Abarbanel’s time? Interesting. It’s certainly what we did with our kids.
The phrase belongs to Amanda Jansen. I love the way “rough draft talk” sounds, and I think about it all the time. There’s something a bit selfish, I think, about making other people listen to you work out your ideas all the time. It’s something I’m incredibly self-conscious about. This is probably part of why […]