What’s your guess? How fast are the number of daylight hours changing each day? Are the changes dramatic or subtle? Students make guesses; compute how long, on average, the change in daylight hours should be; and finally understand the variability in our year of daylight hours.
Eliud Kipchoge runs marathon in 1:59:40.2
How have record marathon runs changed through the years? Will those record times keep being broken? Does the data help you predict?
Really big shoe
Brian and his son were doing some shopping when he found this shoe. Egad! Could that be someone’s real shoe? In this activity student need to use a shoe size chart, patterns or linear modeling to try to figure out…
Will college be affordable?
Whether you or one of your siblings is going off to college next fall, it is useful to know how much colleges cost. Not going to college this fall? No worries, we can use the information on college costs in…
Saffron and paella
In order to cook Paella (a delicious Spanish rice dish) I needed to buy Saffron spice. It was hugely expensive. So, I’ve decided to start a business of growing saffron and becoming immensely wealthy.
Best Sports City
My friend from Boston created this list of cities that had won championships (in the last 10 years) in the four major national leagues. What does this list make you wonder? Which city has the best teams? How do you…
Here are some pictures from a recent snowfall at my house. How Much Snow Did I Get? Have students make an estimate. Ask them for a guess that is probably a little too low and one that is probably too…
The Fiscal Cliff – sounds scary
We’ve used a graphic to help students understand what is meant by the Fiscal Cliff. Students will understand some of the terms and study the consequences of two upcoming scenarios. They will be deducing information from the graphic.
My Facebook IPO investment
What is an IPO? Are they always good investments? Students analyze charts and data, learn a little about investing, calculate percent loss (unfortunately), and make some Facebook stock projections. facebook-IPO.pdf