Playlist: Bookmarks
What’s In My Brain: Ramp vs Bike
Two columns. One is an example, one isn’t. Can you figure out the hidden rule before the big reveal?
What’s the Pattern? Fraction Addition
Can your students figure out how to add fractions by looking for a pattern?
Game: Number Scrabble
What if we played Tic-Tac-Toe with numbers and instead of three-in-a-row, we add up to 15? Well… then we’d have Number Scrabble!
Numerator or Denominator: Which has more power in a fraction?
What do you do with students who already get their fraction operations? Give them a contrived project about recipes or pizza slices? Make them solve annoyingly hard practice problems? Please. Here, we get students thinking in a whole new way, pondering which has more power, the numerator or denominator.
Same Perimeter, Different Area For Rectangles
Can two rectangles have the same perimeter but… different areas!?
Undoing Multiplication With Division
Multiplication and division, natural foes, are constantly seeking to undo each other. Students will attempt to reverse the effects of multiplication by dividing once, twice, or even thrice!
Simple or Compound Sentences – What’s In My Brain?
Can your students spot simple sentences vs compound sentences?
Math Curiosity: Magic Squares
Imagine a 3×3 square in which every row, column, and diagonal have the same sum. That’s a magic square!
Doubling Dollars
Say you have a dollar. Say you can double that dollar each day: $1, $2, $4, and so on. How long will it take to reach… one million dollars? Not as long as you might think!
What Do Mean and Median Mean?
When will mean and median give us different results?
Fraction Puzzlers: Add and Subtract Fractions To Reach A Number
You only have six digits to form three fractions. Can you combine them to get to 0?
The Game of 100
Who can get to 100 first in this simple, but delightful, math game?