Should I oven bake it, deep fry it or barbecue and smoke it? When do I have to wake up to begin preparations? How long will the cooking take? How much will it cost? How many can I feed? Will there…

Every year Americans spend lots of money on Halloween and Halloween costumes. Use our updated data on Halloween spending in America to engage your students in an analysis of the ratios and percents of population, participation, and money spent in honor…

In mid-August and early September, the Monarch butterflies begin their annual migration south to more moderate climates to hibernate and overwinter. It is an incredibly long migration and fascinating to observe. But, the populations data on Monarchs has seriously changed…

In my family it is traditional to eat latkes (Yiddish for potato pancakes) at this time of year. They are fried in a lot of oil and salted generously. My mom’s latkes were wonderful but they couldn’t have been good for…

We ran into this sale online. Is that advertisement correct? Do they just want us to believe their math and not question what is really 70% off? Is everything or anything really 70% off?

Grubs are killing my grass. I don’t want to put poison into the ground. What can I do? There are tiny roundworms called beneficial nematodes. They can kill destructive soil pests in your garden and lawn. They are tiny worms that…

A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday. In this activity students measure; create whole number ratios for the official U.S. flag; decide how our artistic flags will be different…

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

Valentine’s Day is a good excuse to explore parametric equations. First students figure the coordinates of this figure using trigonometric unit triangles. Then they simplify and accelerate this task with either a graphing calculator or with online software like Desmos…

In this activity students do a little comparison shopping as they determine which size Goldfish product is the best deal. Students are introduced to the ratio table as a tool for determining equivalent ratios and comparing different rates. Students graph cost per ounce relationships and answer a…

After the games Thomas Ulsrud, Norwegian curler; Eun-Ryung Sung, South Korean single luge Dachhiri-Sherpa, Nepalese cross-country; Jason Brown, U.S.figure skating The 2014 Winter Olympics have concluded. Which country had the most successful olympics? Three students can’t agree. Have your students…

Wildfires are burning in the Sierra Nevada Mountains near Yosemite National Park. In this activity we ask students to examine various maps of this California region, calculate distances using map scales, draw conclusions about the nature of fighting fire here,…

Monday, April 17th, 2017, is the official holiday this year to remember the Battles of Lexington and Concord that began the Revolutionary War 242 years ago in 1775. (The actual date was April 19th, 1775) Both Paul Revere and the…