Playlist: 4th Grade
Factors and Codes (Episode 1)
Let’s use factors to encode and decode words.
Grouping Shapes by Parallel and Perpendicular Sides
Which shapes go together based on parallel and perpendicular lines?
Letters With Symmetry
Let’s group letters by their symmetry, then create symmetrical words, and then symmetrical sentences!
Math Curiosity: Magic Triangles
Can you make each side of this triangle add up to 9 using the digits 1-6?
Pig Pen Cipher (Codes Part 2)
Let’s encode some secret messages with a cipher that was actually used during the American Civil War!
Thanksgiving Photo Writing
Starting with an old-timey photo, students will write from a particular item’s point of view.
Drawing An Impossible Triangle
Here’s how you can draw The Penrose Triangle, an example of an impossible shape.
Drawing Knots, Level 3
How to draw the final version of the twisty Henri Matisse knot!
Drawing Knots, Level 2
How to draw a more complex version of this twisty Henri Matisse knot!
Drawing Knots, Level 1
How to draw a simple version of this twisty Henri Matisse knot!
Ultimate (or Inception) Tic Tac Toe
What if each square on a Tic-Tac-Toe board had another Tic-Tac-Toe board inside of it?
Game: Wild Tic Tac Toe
Imagine Tic-Tac-Toe, but both players can both play as both X and O throughout the whole game!
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!
An Escher-Style Tessellation Project
Create a piece of repeating art in the style of MC Escher!
Remixing A Holiday Poem
Let’s take a classic Christmas poem and remix it to work with another holiday!
Math Curiosity: Four Squares
Every positive integer can be written as the sum of (at most) four perfect squares!
Fractals: Koch Snowflake
You could keep zooming in on this snowflake forever!
Jabberwocky and Context Clues
Context clues lessons can be a disaster. Here, we expose students to a delightful classic packed with nonsense words (“Jabberwocky”) and ask them to decipher the meanings and parts of speech. Then, it’s only natural for students to write their own nonsense poems.