You’re standing at the edge of a cliff, phone in hand, trying to measure the distance to the opposite side – no tape measure, no drone, just your brain. Now what? Trigonometry just became your ...

"Who is the person that discovered trigonometry?" asked a young Schaumburg Township District Library patron who attended the "Summer Scientists" program. Wanting to determine distances between stars, ...

If you or your kids are preparing for an advanced math or science course, you’re going to need a graphing calculator. These handy machines can process complex calculations (and simple ones), including ...