Playlist: Bookmarks
What’s In My Brain: Pentagon vs Pentagon
We’re looking at regular vs irregular polygons.
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!
Olympics: Medals by Population
Do big countries always have the most medals? Which smaller countries rank surprisingly high in the Olympics?
Mow A Lawn
How long would it take to mow a very large lawn with a push-mower?
Thinking With Art: Head Down
One artist, two paintings. Notice details, compare, synthesize, then find a parallel in another creator’s work.
Word Ladders Introduction
You won’t believe how this spelling and vocabulary puzzle will get kids’ brains sweating over the smallest of words.
Writing A Thanksgiving Letter
What if an inanimate object could express thanks for a special person in your life? What would it write?
SCAMPER: Scaffolding Creativity
Asking students to “think creatively” won’t get you far. They won’t know how to start, they’ll get stuck with simple ideas, or they’ll just go completely wild. SCAMPER is a tool for scaffolding the process of creativity.
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!
What’s In My Brain: Trapezoids or Not?
Which are trapezoids and which are not?
How Many Ways: 2 Digit ÷ 1 Digit = 1 Digit
How many different ways can you make this math statement true using only the digits one through nine?
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.
Same Perimeter, Different Area For Rectangles
Can two rectangles have the same perimeter but… different areas!?
Intersecting Angles and Streets
There can never be just one angle.
Undoing Multiplication With Division
Multiplication and division, natural foes, are constantly seeking to undo each other. Students will attempt to reverse the effects of multiplication by dividing once, twice, or even thrice!
Student Introductions with Complexity and Frames
How have you changed over time? Students introduce themselves through the lens of change — and learn a Depth and Complexity tool in the process.
Calculators, Patterns, and Multiplying By Decimals
Before teaching students the procedure for multiplying with decimals, how much can they intuitively glean from a structured play session with calculators?
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!
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?
Place Value (Beyond Base 10)
Place value is something we cover in elementary school. It seems simple, but I’d wager that very few adults really understand the topic. I sure didn’t until I worked with non-base-10 number systems in college. Your students can get a taste of this mind-boggling experience by imagining what it would be like if we didn’t have the number 9. What would each digit represent then?
The Angles of a Triangle
Why tell a kid the rules of a triangle when they can discover them!?
Grouping Quadrilaterals In A Hierarchy
Can we classify quadrilaterals like we classify living things?
Lines, Line Segments, Rays, and Infinity!
A lesson about lines, line segments, and rays that avoids dull memorization. Instead, we ponder this delightful question: Which is longer, a ray or a line? Then, kids consider what these different geometric concepts would think about each other.
Depth and Complexity: 📈 Trends
Has something been changing recently? What might be causing that? What are the effects?
Depth and Complexity: 👄 Language of the Discipline
Imagine a construction worker who doesn’t know the name of a screwdriver or a doctor who can’t remember what to call your neck. It’s pretty hard to communicate well without knowing the 👄 Language of the Discipline!
Depth and Complexity: ❓ Unanswered Questions
This underutilized tool focuses students on what we don’t yet know and even what we can’t know.
Depth and Complexity: ⚖️ Ethics
Want to add drama to any topic? Use the Ethics prompt!
Depth and Complexity: 🚦 Rules
Is there a consequence for not doing something? You may have found a rule!
Depth and Complexity: 🏛️ Big Idea
Let’s get students thinking big and focusing on more abstract ideas.
Depth and Complexity: 📚 Across Disciplines
No topic is an island! With the 📚 Across Disciplines prompt, students note connections within and across multiple fields.
Depth and Complexity: ⏳ Change Over Time
Want to get students thinking about how a topic has changed or might change in the future? The ⏳ Change Over Time thinking tool is just what you need!
Depth and Complexity: 👓 Multiple Perspectives
Every topic looks different depending on who’s looking. This prompt teaches students to see through someone else’s eyes.
Depth and Complexity: Patterns
Can your students spot anything that repeats? Or that has stopped repeating?
Depth and Complexity: 🌻 Details
Get kids focusing on the small, but essential, details of a topic.
Analyze and Create Misleading Graphs
Let’s make some intentionally bad graphs to learn how to spot poorly made graphs.
How Many Students Can Fit On The Playground?
So… just how many kids could we cram onto the playground?
Furnishing A Hotel
Design and furnish hotel rooms on a budget. Real math, real constraints, real decisions. Then pitch your hotel to investors.