Serving advanced learners (and their teachers) since 2012.

← Back to all of your playlists

Playlist: Bookmarks

Ultimate (or Inception) Tic Tac Toe

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?

Paragraphs: Systems of Sentences

Paragraphs: Systems of Sentences

Blow up a paragraph into individual sentences. Now reassemble it. The clues hiding in each sentence will surprise you.

Rounding Numbers (But Not To 10)

Rounding Numbers (But Not To 10)

What could we possibly do to make rounding more interesting for students who already get it? In this series, students consider how they might round to values other than “the nearest 10.” How, for example, do we round to the nearest 9? 7? 15?

Math Curiosity: Magic Squares

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

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?

Building Creative Analogies

Building Creative Analogies

We’ll take two seemingly unrelated pieces of content (say volcanoes and the human body) and then build analogies to connect the two ideas. In the end, students can create a skit, comic, or story relating the two concepts.

Doubling Dollars

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!

Jabberwocky and Context Clues

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.

Showing A Character’s Trait

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.

Academic Love Letters

Academic Love Letters

What if Kylo Ren wrote a love letter to Abe Lincoln or the Sahara Desert wrote one to the Moon?

Discovering Pi With Sticky Notes

Discovering Pi With Sticky Notes

Pi is mysterious and strange! Why not let students discover it on their own?

Exploring Circumference With Famous Circles

Exploring Circumference With Famous Circles

Let’s find how the diameter and circumference of famous circles are related.

Ways to Start a Sentence – Level 1

Ways to Start a Sentence – Level 1

‘Add more variety!’ teachers say. But how? This lesson gives students actual techniques instead of vague advice.

The Game of 100

The Game of 100

Who can get to 100 first in this simple, but delightful, math game?

A Grid-Based Fraction Project

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.