Playlist: Bookmarks
Crossing Every Bridge Exactly Once (aka Eulerian Paths)
How can you cross each bridge in this city exactly once?
How Many Will There Be? Chip Off The Block
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Brain Needs or Heart Needs
For TeachersWe think of gifted kids as only having academic needs, but – in their own words – they also have many needs of the heart.
Paragraphs: Systems of Sentences
Blow up a paragraph into individual sentences. Now reassemble it. The clues hiding in each sentence will surprise you.
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?
More Specific than “Smart”
When students are told that they’re “smart”, what does this word actually mean to them? (Psst. It isn’t what we intended.)
A Caffeine Investigation – Part 1
So… just how much caffeine can you have before you end up in the ER?
Math Curiosity: Primes and Squares
Can any perfect square be written as the sum of two primes?
Math Curiosity: Finding Primes
Prime numbers are unpredictable! How can we possibly find them all? An Ancient Greek mathematician found one way!