They sit, heads slightly bowed, pencils ready, each one thinking about how to tackle each individual problem. They display ...

“Students are now asked to reason, quantify and give ... problems, and experts say that comes with a new math language. “Friendly numbers,” “making 10s” and “landmark numbers” are ...

They asked them to provide some truly difficult math problems and got back hundreds of them in reply. Such problems, the researchers note, are not only unique (they have not been published before ...