Playlist: Bookmarks
The Heaviest Pumpkin
How heavy is the world’s heaviest pumpkin when measured in Mr. Byrds?
Zig Zag Cipher (Codes Part 3)
Let’s try a cipher that doesn’t substitute new letters or shapes. We just mix things up.
Pig Pen Cipher (Codes Part 2)
Let’s encode some secret messages with a cipher that was actually used during the American Civil War!
Shift Cipher (Codes Part 1)
Let’s encode and decode secret messages like Julius Caesar!
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.
How Many Will There Be? Courtyard
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
What’s In My Brain!? Walnut vs Clouds
Let’s look at living vs non-living things.
Not Like The Others: Penguins
Four penguins. One doesn’t belong. But which one? That depends on your argument.
Notice, Wonder: Butterball
A mysterious image. Reveal it slowly. Let your students wonder!
How Many Ways: Fraction Subtraction 234
How many different ways can you make this fraction subtraction statement true using only the digits one through nine?
How Many Ways: Fraction Addition 234
How many different ways can you make this fraction addition statement true using only the digits one through nine?
Not Like The Others: Stars
How is each of these stars not like the others?
Not Like The Others: Birds of the Tropical Rainforest
Which of these four birds is not like the others?
New Uses for a Paperclip
So what are some new ways to use a paperclip?
Fractions: Decompose and Recompose
What if we took a fraction apart, then took those pieces apart, then recombined them, and then recombined those, arriving back to the original fraction?
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!
How Renewable Is That Resource?
Which resource is more renewable? And which is easier to find?
Not Like The Others: Planets
Which of these planets is not like others? Well, it sure looks simple at first. But each option could be the one that doesn’t fit in.
Fraction Ordering Tournament
Which set of fractions would be the trickiest to order from least to greatest? Let’s have a tournament!
Writing A Story About Fraction Equivalence
When fractions take on a new denominator, it’s as if they’re wearing a disguise – same value, new look. So let’s write a story about fraction equivalence starring a fraction who needs to fit in with a new group.
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!
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?
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?
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.
Writing Clear Directions
Can you write directions so clear that a group of kids can put a toy together with no illustrations?
Ethics In The Young Elementary Classroom
For TeachersCan kindergartners discuss ethical issues? Yes. Here’s how to weave multiple-perspective problems throughout your curriculum.
Better Stories Part 2: Types of Conflict
If your students’ stories are packed with endless ninja fights or arguments between frenemies, it’s time to expose them to a wider range of conflicts.