Playlist: Bookmarks
Spring Math Worksheets: Addition and Subtraction
Four sets of 2-digit and 3-digit addition and subtraction practice. But the unknown isn’t where you expect it to be!
What If… No Sleep?
What would the consequences be if no one had to sleep anymore?
Writing in Pilish
Pi can go beyond circles! What if you wrote using the digits of pi as your guide?
Subtraction: 3 Digits Minus 2 Digits (Multiple Solutions)
Typical practice problems don’t move students up Bloom’s Taxonomy. With this framework, you’ll see kids stop and really think about how to approach multi-digit subtraction.
Math Curiosity: Ulam Spiral
What if we make a huge spiral of numbers and then highlight only the primes? Well, a bunch of weird patterns show up!
Parentheses: How big of a change can they make!?
Two tiny parentheses. One expression. How big of a change can they make? Bigger than you think.
How Many Ways: Times Equals Minus
How many different ways can you make this math statement true using only the digits one through nine?
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?
Math Curiosity: Odds & Squares
Why does the sum of the first 5 odds also equal 5 squared?
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!
A Caffeine Investigation – Part 1
So… just how much caffeine can you have before you end up in the ER?
Math Curiosity: Twin Primes
What do you call two prime numbers who are very close together?
Create A Creature
Create a new creature based on the adaptations of existing creatures from the same biome.
A Grid-Based Fraction Project
You’ve got 60 spaces on a grid to create an amusement park, a house, a farm, or whatever you’d like. Divide it into seven pieces, order it by size, combine into two halves, and more in this fraction project.
Engineering: Build A Bridge
Using real bridges as their starting point, students will construct bridges out of straws and paperclips.