In this timely activity, students learn about how cranberries are grown and harvested; estimate their size and quantities; and see what they can deduce from published statistics.

Appalachian Trail Needs – Calculating the needs and rates involved in enduring this 2,168 mile trek. Steepness and Fall Hiking – Use a little mathematics about percent grade change in hiking.

Use this activity to help your students work through the meaning of the Pythagorean theorem. Pythagorean theorem experiences are often skill and drill work with contrived right triangle problems. In this activity students work with a visual representation of the…

I risked infecting my friends or becoming infected myself by throwing a very small socially-distanced party. I served baked appetizers, disinfectant wipes, and latex gloves. I cooked while wearing clean latex gloves and served the appetizers with a spatula. The…

I have two fish in my aquarium. Betty is my white goldfish. She often stays really close to the front wall as she swims towards her food. Stripe, my clownfish, usually swims diagonally across the tank to the back top…

3 activities about wrapping presents: On the diagonal, 3-act by estimation with iPhone, and judging sizes and needs by estimation with man and shopping basket.

It’s Halloween and this is your neighborhood. How long will it take you to trick or treat at every house in your neighborhood? Possible conversation with students: How long will it take you to get from house to house? You…

The world record for the largest cup of coffee was recently set (see picture above). In this activity students explore scale, similar figures, volume and measurement as they estimate the amount of coffee that this record-sized mug holds. Students also…

If you have a set of cubes for your classroom, this would make a great group hands-on project. Its an old puzzle but the activity deserves a revisit. Below are two straight-on images of my stack of blocks. Can you…

To see this poster larger in a new window, click on the image. In 2017, Old Dominion Freight Line offered 2 free tickets to the next 3 World Series to the person who guesses closest to “How many baseballs are…

The building of this underground house and pool was presented by Cayote Person and his partner, Mark Lavins, on their youtube channel, “Brave Wilderness.” At BraveWilderness.com the business partners post animal and adventure films to promote education and conservation. Here…

More for π Day! On a cold and snowy day in Boston, two chefs created a huge Key Lime pie to remind the frozen people of the Northeast how tasty and warm the Keys of Florida are. After you…

We’ve found that some students believe that the approximation that their calculators show for irrational numbers is exact. Here’s an activity that you can advertise as long multiplication review. After they study our calculations have a discussion just to clarify…

The Philadelphia police were being proactive about keeping their enthusiastic Eagles fans from being reckless as they celebrated their 2018 Super Bowl win. So, the police departments frosted the city light poles with Crisco shortening to help discourage fans from…