Ever feel like your teacher just didn’t understand what you were going through? Well, researchers at the University of Massachusetts Amherst and Arizona State University are busy designing computerized tutors designed to teach and feel. The machines will be outfitted with sensors that pick up whether a student is angry, frustrated or bored. For instance, a computer vision system will study the subject’s facial expressions—even something like the tilt of the person’s head can be an indicator of his or her level of interest.

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Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?