Three things to know:

Did you love trigonometry in high school? Yeah… probably not. Steven Strogatz tells us why we should require less math. And why we should make the math we DO require more fun.

You may be addicted to technology. After all, you’re reading this online.  Mo Lotman says we need to be more skeptical than we are of the technology that pervades our lives.

Janette Sadik-Khan says that adding more lanes to highways just leads to more traffic. She tells us how cities are getting smarter about cars.