They changed it. That is so not fair … or is it? You can check out a video news story on the delicious shrinking Toblerone bar here. Two sizes of Toblerone bars are now configured differently. How much did they…

How many houses can you get to – It’s Halloween. Time to trick or treat. How long will it take you to get to all of these houses? This is a very open-ended task, counting, trick or treating strategies, distance and more.…

One of my favorite foods is a burrito. One of my favorite places to get a burrito is Chipotle. Their food is delicious and environmentally friendly. For Halloween 2016, Chipotle is again running a promotion and charity drive. Chipotle is…

Use your student’s Halloween enthusiasm to do a study on volumes. We’ve created an activity that asks students to calculate the volume of candy containers that are silly and intriguing. Skip the cone and the sphere to make this activity…

Check out the video: What do you wonder? How many donuts make up this Big Papi tribute? What would be useful to help you figure this out? The following pictures that will open in new windows: Big Papi Sky View,…

On September 15, 2016, Olive Garden again offered a $100 pass for never-ending pasta, bread sticks, salad and coca cola soft drinks. The 21,000 patrons who quickly (in less than a minute) bought all of the passes will be entitled…

Jodie Berman, a high school math teacher in Chicago, loves mathematics and loves to cook. We’ve created an activity based on her Monster Cake (composed of everything that Cookie Monster loves) from her blog Binomial Baker. Students find the surface…

Act I: This restaurant bill has the suggested tips, but they are smudged out. What should they be? Consider having students make a fast 5 to 10 -second prediction in their heads. Act II: Students work – for few minutes…

How do you calculate and justify which deal is a better savings? By dollars saved? By percent saved? By some other measure? The activity: WhichDealOffersMostValue.pdf CCSS: 4.OA, 4.NBT, 4.MD.A, 5.NBT, 6.RP, 6.EE, 7.RP, 7.EE.A

Topper Chocolate Easter Bunny from Dilettante Chocolates. What can you deduce about the bunnies (pictured in this activity) from the descriptions given … solid? hollow? cost per pound? cost per height? Anything else? The activity: GiantChocolateBunnies.pdf

Have you ever wondered how the income from Girl Scout cookie sales is distributed to the individual girls, to their Troops, or to the organization? In this activity students learn a little about the organization of the Girl Scouts, try to…

Using his famous mashed potato recipe, Brian has asked students to change decimals to fractions, to calculate ingredient measures for various-sized Thanksgiving gatherings, to explain their thinking in calculating these figures and to judge how many servings could be created…

Part of the Smithsonian’s Sally L. Steinberg Collection of Doughnut Ephemera — Click on the image to see it larger. When you are working on volume in your class, you can use this activity for students who might like to find…

What additional information would you like to know? Record your data from your investigation … either from your own research or from what your teacher can supply. Use all the information that you have gathered to determine which banana deal is…