A Mathematical Tip On How To Tip

PEEL IT BACK: Mathalicious founder, Karim Kai Ani wrapped up his Math52 Kickstarter campaign in June to the tune of $40K. Since then, his team has been working hard to build its math video collection. Here's a sneak peek of the first, "Tip Jar," which challenges students to think through the mathematics of what makes an appropriate tip. And to top it off, Blackalicious rapper, Gift of Gab, contributes an upbeat ditty to get your morning rolling. "We wasn't given this life to sit around," he raps. Okay, it won't pass muster with the grammar police but even Shakespeare took a few, um, prosaic liberties.

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