Raise your hand if this sounds familiar ... and you missed your chance to contribute. This model of classroom participation is common, despite decades of research suggesting we do away with ...

Instructors and students can give more visible feedback through live gestures by using new raise hand and thumbs-up 👍 gesture recognition. This feature will automatically display a corresponding ...

The Nazi salute has been compared to hailing a taxi or raising a hand in a classroom by lawyers for the first person charged ...