The students huddled around their tables, scribbling and erasing their notes, nodding and shaking their heads and rearranging the blocks in front of them. “There has to be a hole in the middle.” “We ...

Trey Smith wanted to find new ways to teach math in the classroom, so he organized the Philadelphia Engineering and Math Challenge as a lab for problem-solving-based approaches to teaching. Student ...

Using their knowledge of angles, the high schoolers had to rearrange mirrors to make a laser hit a specific point. Meanwhile, the judges walked around with laser pointers, testing the contraptions.