The answer to this mathematical brain teaser is NOT 40 - can YOU solve it in 30 seconds by remembering the special rule?
These student-constructed problems foster collaboration, communication, and a sense of ownership over learning.
Most people in the math education space agree that students need to be fluent with basic math facts. By the time kids are in ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results