It’s Girl Scout cookie time

GScookiesIt happens to me every year.  My pantry is bursting at the seems … with Girl Scout cookies.  These kids are masters at the art of sales.  I run into the cookie selling teams of Girl Scouts everywhere, and unfortunately I always end up buying several boxes.  Now I have a kitchen full of Thin Mints, Peanut Butter Patties, Lemonades and more.  It got me wondering … how many boxes of Girl Scout cookies are sold each year?  What does that add up to in yearly sales?

Mom’s matzo ball soup


Passover begins this year on Monday evening, April 14th, with a Passover seder dinner. Passover is one of the three high holidays in the Jewish calendar and celebrates the Exodus of Jews from slavery in Egypt.

Let your students review fractions in this investigation on tripling my mom’s recipe and trying to use the recipe to create one humungus matzo ball.

Recent Earthquakes

IRIS.eduSeismicMonitorNorthern Chili and Los Angeles, California have experienced recent earthquakes.  These quakes are along the “Ring of Fire” where Earth underground plates often collide.

The IRIS (Incorporated Research Institute of Seismology) Seismic Monitor will allow your class to visualize the most recent quakes and their magnitudes in this region.

Our updated Richter scale activity will allow your students to get an appreciation of the logarithmic Richter magnitudes.  

Department and school memberships


Is your math department looking for ways to use remaining math budget money?  Don’t let that math department money just disappear; put it to great use with memberships to Yummymath.

We have reduced membership rates for groups of teachers, departments and districts.   With membership, you will not only get continued use of our tasks, you will have access to editable word docs, Excel files, full solution materials and even teaching suggestions.  Your support will help us to remain advertisement free and keep our membership rates extremely low (a little more than $1 a month).

Pizza party


In this activity students decide how to divide 2 pizzas amongst 6 adults and 3 pizzas amongst 8 kids.  Fractional pizza parts need to be drawn and considerations discussed about which fractions are greater. Students interpret a fraction as division of the numerator by the denominator (a/b = a ÷ b).  Wicked fun, warm, and tasty.

April Fool’s day perplexors

We have two classic puzzles for your April 1st class starters.



PerplexingOne.pdf      PerplexingTwo.pdf

CCSS: MP.1, MP3,4.OA, 5.G, 8.EE, 8.SP

For members we have solutions.

PerplexingOne-solution.pdf     PerplexingTwo-solution.pdf

Or you might baffle and amaze your students with our Ghost Whisperer lesson.  They will think you are pulling one over on them until they figure out the math!

Another great April Fool’s day activity would be Robert Kaplinsky’s Foil Prank.