This might be an interesting conversation starter for a class: what’s the best way to board an airplane?
The students will probably have lots of ideas to discuss, and best of all, every single one of them will be better than what the airlines actually do.
logic
At most vs at least
This next example comes from Sue VanHattum.
Me: Clean up your drips!
R: There aren’t any.
Me: I see at least one.
R: You see at most one.
When do children start using logical reasoning? Can we find other examples of children thinking like this?
Math Thinking 