Tag: 7.G

Green, green river

During the St. Patrick’s Day parade in Chicago, the local plumbers union dyes the Chicago River emerald green. Students learn what PPM (parts per million) means and  attempt to figure out how much dye is used to sufficiently color the…

How much caffeine?

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…

Crop circles

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…

Ladder figuring

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.

Geometry of Flooding

In 2010, March was so rainy that flooding was the topic of every newscast and many, many conversations.  The picture shows how students went home from school in Wayland Mass. on March 31st – on a Duckboat. This two page investigation asks…