Playlist: Bookmarks

What Am I? Science Riddles

Rebus Puzzles

Squiggles Introduction

What do you see in this squiggle?

Squiggles Collection 1

Everyone starts with the same squiggle. No two drawings end up the same. What do you see?

Tournament of Ancient Inventions

Which of these inventions of the ancient world is most influential? Least useful today? Most taken-for-granted?

Math Curiosity: A Pattern Packed Triangle

Pascal’s pattern-packed triangle is a potent puzzle for pupils to ponder.

Math Curiosity: Palindromic Number Conjecture

Using this one weird trick, it seems that you can turn any number into a palindrome!