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…

Friction, score-keeping, trajectory and weirdness are the main concepts in this activity. Curling is not a well-understood sport but the science and strategy are easily understood and enjoyed. Let your students watch this video to get a feel for the…

The scoring rubric for each of the Olympic events is intended to eliminate the possibility of scoring bias from the judges. Let your students learn more about the scoring of one event and decide whether it seems fair or not.…

Check out the TVs. All have essentially the same features, only the size of the screen varies. Which TV do you think is the best deal?Explore area and unit pricing to determine which HDTV offers the most screen area for…

How were your holidays? Your school vacation? Mine was good. I surprised my family with this HDTV, which I wrapped and hung on our wall. The size of an HDTV is determined by the length of its diagonal. What size…

At the Toys R Us store, I saw an amazing LEGO creation. He was a life-sized LEGO fireman with a walkie-talkie, an oxygen tank and even an oxygen tank gauge. He must have taken a long time to build. Let…

Vespa mandarinia In AnKang, China in Shaanxi province, giant hornets have injured and killed scores of people. Government officials are now trying to eradicate these insect’s hives and have destroyed about 4,500 nests so far. The Asian giant hornet is the…

Halloween means lots of candy and chocolate. In this activity students approximate the volume (through finding the morsel’s base area) of three different pieces of chocolate. The chocolates are shaped like a heart, a bat (for Halloween) and a chocolate…

We stumbled upon this interesting caffeine infographic at visual.ly. Wonderings? How many McDonalds coffees do I need to get the same amount of caffeine that I would get in a Starbucks coffee? What is the whole circle worth? How do you…

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,…

In the travel section of our newspaper this week, Wiltshire, England was a recommended destination to see Stonehendge and crop circles ……….. crop circles? Many of the crop circles in England appear mysteriously overnight. They are often huge but appear…

Instead of asking students to just believe what you’ve said, why not ask them to verify your assertions? Students plot the points of the stream, perhaps map them with an equation generated by Excel or their calculator, and then use…

Brian can’t even go to his town’s spring festival without seeing math. Let your class approximate the height or length of this ladder by using the relative size of the cars or the people to approximate the ladder’s length.

Robert Kaplinsky kindly contributed this post. We think it would make a great April Fools day activity. Check out his site for more great lesson ideas. Watch this movie with your class: foil_prank The Challenge(s) How much does it cost to…

Valentine’s Day is here again and that means candies and chocolate. In this activity students approximate the volume (through finding surface area) of three different pieces of chocolate. The chocolates are shaped like a heart, a bat (for Halloween) and…