Math teacher Alexander Overwick is a self-proclaimed “world freehand circle-drawing champion” after an online video of him drawing the perfect sphere got more than 6 million hits. The TODAY anchors go ...

I had never heard the term, “math circle,” until a few weeks ago when I stumbled across an article in The Atlantic about the growing number of American kids excelling in the highest levels of math. It ...

When you want to draw a round circle accurately, you need to use a tool such as a compass, and drawing it freehand in one shot is extremely difficult. ' Draw a Perfect Circle ' is a service that ...