The Coloring Problem How few colors can you use to fill in a map so that no neighboring regions are the same color?
Thinking Like Equivalent Fractions Go across disciplines by asking students to write a story about fraction equivalence.
Math Project: Disneyland Parking Structure Let's develop a math project to challenge students who have demonstrated a mastery of multiplication and are ready to explore its applications. We'll count the parking spaces in the Disneyland parking structure!
Make A *Better* Calendar! The calendar is a source of fantastic factoring problems with many social studies add-ons. Why 12 months? Why 30 (or 31 or 28) days? Why are weeks 7 days long? Why don't they fit into the months (or the year!)? Why did we do this to ourselves!?
Could we fit 1,000 kids on the playground? 10,000? If your students can find the area of a square then, armed with Google Earth, they can also figure out how many students you could pack into your school's playground.
Math Game: The Game of 100 The Game of 100 is a simple game requiring no supplies, yet it opens up a rich world of exploring strategy and a little mental math.
Encourage Curiosity With Calculators It's easy to fall in love with chasing the newest technology to use in the classroom. But sometimes, the perfect tool is a plain old calculator. We'll be using this tool to develop curiosity about math.
The Surprises Within a Triangle’s Angles Discovering what is interesting and unexpected about a triangle's angles. What twists have I unintentionally spoiled for my students over the years?
Which is longer: a Ray or a Line? Let's move beyond memorizing definitions and get kids grappling with the fascinating concept of infinity!
