Robin Retzler

8 Flips | 3 Magazines | 1 Like | 8 Following | @rretzler | Keep up with Robin Retzler on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Robin Retzler”

Can You Solve The 100 Lockers Problem?

You may have tried solving the 100 Locker Problem in high school or college math. If you haven't, here's how it goes: 100 students are assigned …

The Infinite Hotel Paradox

German mathematician David Hilbert proposed the infinite hotel paradox as a way to illustrate the confounding properties of infinity. It was a way to …

Above and Beyond~ Gifted Students and the 4 C's

It is so hard to believe that I have been blogging for a year now! This weekend marks my one year blogiversary! I started blogging because I was …

Organizing the Gifted Learner

For the second week in a row, #gtchat became a Trending Topic on Twitter from the U.S. and Canada to Australia! Our discussion centered on the why …

Is it okay to tell your kids they're smart?

Great discussions are par for the course here on Lifehacker. Each day, we highlight a discussion that is particularly helpful or insightful, along …