Stenhouse just released Christopher Danielson’s book, Which One Doesn’t Belong?
It’s a must-have if you’re a parent or a teacher with any interest in helping your children or students learn to speak mathematically.
There are few tasks that offer so much mathematical value yet require so few instructions as Which One Doesn’t Belong?
You see four mathematical objects. You ask kids, “Which one doesn’t belong?” You help them negotiate their overlapping and conflicting answers, developing vocabulary and the capacity for argument and abstraction along the way. That’s it.
You can find loads of great WODB prompts online but you can’t find Christopher’s unique presentation, narrative, and teacher’s guide, which is its own kind of graduate-level course in pedagogy.