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Playlist: Bookmarks

What’s In My Brain: Spain vs Germany

One column is an example. The other isn’t. Can your students figure out the hidden rule before the reveal?

Math Curiosity: The Coloring Problem

No video gets me more email from students! How few colors can you use to color in any map so that no two, neighboring regions are the same color?

Place Value (Beyond Base 10)

Place value is something we cover in elementary school. It seems simple, but I’d wager that very few adults really understand the topic. I sure didn’t until I worked with non-base-10 number systems in college. Your students can get a taste of this mind-boggling experience by imagining what it would be like if we didn’t have the number 9. What would each digit represent then?

The Resiliency Tournament

Your students will set up a tournament to determine which person or character best demonstrated resiliency.