“This was the best money I have ever spent on a teaching tool.” ~ a teacher in Wisconsin

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Playlist: Bookmarks

Famous Structures

Famous Structures

The Eiffel Tower, the Colosseum, the Sydney Opera House — group them, pick the best from each group, then design your own.

Notice, Wonder: Witch’s Fingers

Notice, Wonder: Witch’s Fingers

A mysterious image. Reveal it slowly. Let your students wonder!

Looping Grid Art

Looping Grid Art

Pick a few numbers, draw some corresponding lines on grid paper, and you’ll end up with some interesting, looping math-y art!

A Lunar Survival Mission

A Lunar Survival Mission

A favorite of mine! This task is delightfully complex and ambiguous, forcing students to make choices without enough information and with no right answer. How will they survive on the moon for three days?

Not Like The Others: Natural Disasters

Not Like The Others: Natural Disasters

Four natural disasters. One doesn’t belong. But which one? That depends on your argument.

Math Curiosity: A Pattern Packed Triangle

Math Curiosity: A Pattern Packed Triangle

Pascal’s pattern-packed triangle is a potent puzzle for pupils to ponder.

Disneyland Parking Structure Math Project

Disneyland Parking Structure Math Project

Your students will use estimation strategies to figure out how many parking spots are there in the parking structure at Disneyland? And you bet I reveal the real answer!

A Donut Investigation

A Donut Investigation

In this cross-curricular investigation, students will look into an intriguing question: do donuts or salads have more sugar? They’ll grapple with misleading information, bias, and use their math skills to create a visual representation of sugar in popular foods.

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.