Dylan Kane likes his math curriculum. But there’s one important piece missing, he says. The 7th grade math teacher in Leadville, Colo., uses a program that teaches math skills through real-world ...

What is the grade of a tumour? Grading is a way of dividing tumour cells into groups. To work out the grade, an expert called a pathologist looks at a sample of the brain tumour. They examine the ...

Olympic gold medalist Usain Bolt shows off his super speed as he runs the 40-yard dash at the Super Bowl, which would be a record for NFL players at the combine.

For hours Saturday morning, as temperatures kept stepping higher into the 80s, a great bobbing current of sweat-drenched runners flowed down 10th Street, into Piedmont Park.