Playlist: Bookmarks
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!
Words Within Words: Intro (SOLDIER)
How many words can you find within SOLDIER? 20? 35? 50? Even more!?
How Many Will There Be? Earthworm
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Notice, Wonder: Bloom
A mysterious image. Reveal it slowly. Let your students wonder!
Difficult vs Complex Tasks
For TeachersWhat separates difficulty from complexity? And why do complex tasks lead to much more natural differentiation?
Math Curiosity: Klauber’s Triangle
In 1932, a leading authority on rattlesnakes, Laurence Klauber, discovered a startling pattern within a triangle of primes.
Ghost
Ghost is a word-building game for two players. The first person to create an actual word loses.
Student Introductions With Depth and Frames
Want to introduce the tools of Depth and Complexity and learn more about your students and introduce the Frame graphic organizer? Have I got the activity for you!
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?
Showing A Character’s Trait
We tell students to ‘show, not tell’ — but that advice is useless until they experience the difference. This lesson makes it click.
Persuasion and Packaging: Ethos, Pathos, and Logos
How does a drink’s packaging affect us emotionally and logically?
Math Curiosity: Palindromic Number Conjecture
Using this one weird trick, it seems that you can turn any number into a palindrome!
Creating A Classroom Motto
Starting with specific examples of fantastic classroom behavior, your class will end up with one sentence summing up their expectations. It’s a classroom motto!
The Game of 100
Who can get to 100 first in this simple, but delightful, math game?