How many Peeps are sold at Easter time each year?

Students estimate the number of Peeps sold each Easter season.  They consider reasonability by making guesses they think might be a little too high and a little too low. Students determine necessary info, problem solve and improve their original estimates.  They conduct random samplings of their estimates and compare the mean of their estimates to the actual number of peeps sold each season.  A Peeps video, the math activity, hints and data are below.

Mixing colors with food dye

It's time to dye eggs!

Click on the picture above to show it much larger to your class.  It will open in a new window.

What do you wonder about these recipes for coloring?

What would happen if I used the wrong recipe (i.e. cake mix instead of egg dying) for coloring my eggs?

Do all of the recipes (cake, icing, and eggs) have basically the same proportions of color drops?

What lingo helps you describe color variations?

Hoarding stopped!

Clicking on this image will show it larger in a new window.

A Danish market found an interesting way to limit hoarding of hand sanitizer.

  • How much are these costs in your currency?
  • What is the unit price on these bottles?
  • By how much (what percent) was the price increased?
  • Is this legal?

Weird and spooky puzzles for April Fool’s Day

This day is known for pranks and puzzles.  
Try one of these 4 activities on April Fools Day.

Ask students to analyze where I made my mistake


For members we have solutions. PerplexingProblem-solution.pdf

         CCSS: MP1, MP3, 4.OA, 5.G, 8.EE, 8.SP

Or baffle 'em with this Ghost Whisperer lesson.  They will think you are pulling one over on them until they figure out the math!

CCSS:  4.OA.4, 5.OA.1, HSA.CED.A.2, MP1, MP3, MP4, MP7, MP8

Pascal coloring and modular math

Pascal'sImagesIn this activity students have the opportunity to color as they investigate Pascal's triangle and the many useful patterns that it shows. The triangle is explored for patterns, coloring results, and motivation to learn more about modular arithmetic (clock math).

Data remaining … tricky

I checked my data usage for the month.  What do you notice and wonder?


  • What could my data plan be?
  • How much have I used?
  • How much will I have used by the end of the month?
  • Is this the best plan for me?