Tag: 7.RP.3

Cheesy Goldfish crackers

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…

HDTV Surprise!

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…

California wildfire

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,…

Raising the bar

Recovery of the treasure from the 1941 sinking of the S.S. Gairsoppa was recently completed and a huge amount of silver was brought up from the ocean floor.  Let your students get a feel for this adventurous career as they calculate…

Cruising

There have been a lot of cruise ship mishaps and disasters this year. While these are in the news, let your students consider how these floating cities manage their resources and which of their needs are precarious as they calculate…

Starbucks, 2012

Time to give students some authentic math on a topic they will surely be interested in … Starbucks.  We ask and answer a few questions in this activity. About how many drinks does Starbucks sell in a year? If I…