A comparison of gasoline in Greece, priced at Euros per liter, and gas in Massachusetts at dollars per gallon. Price and liquid volume conversion using unit fractions.

Using his famous mashed potato recipe, Brian has asked students to change decimals to fractions, to calculate ingredient measures for various-sized Thanksgiving gatherings, to explain their thinking in calculating these figures and to judge how many servings could be created…

Let your students marvel at World Record winning giant pumpkins as they use proportions to calculate the quantities of pumpkin puree and the number of pumpkin pies that could be made from one of these giants. To introduce the task…

What does this gizmo do? We’ve given students a diagram of what the interior of this mechanism contains and asked them to try to decide what its purpose must be. Then we’ve given them the data that was collected from…

In Massachusetts, Monday April 15th, 2019, will be a holiday from school and work. We celebrate Patriots’ Day on the 3rd Monday in April to commemorate the beginning of the Revolutionary War and the battles of Lexington and Concord. Students…

Who knew that creams for your face could be so expensive! I’m going to have to rethink what to buy for my mom. Which of these high priced cremes is most expensive? In this activity students observe some prices of…

A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday. In this activity students measure; create whole number ratios for the official U.S. flag; decide how our artistic flags will be different…

Monday, April 15, 2019 Patriot’s Day, is the next running of the Boston Marathon. What do you know about marathons? What do you know about the Boston Marathon? How long do you think the marathon is? Make your best guess.…

People spend lots of time staring at their screens (glowing rectangles). Kids spend hours each day using their cell phones, computers, tablets, television and more. Use that interest to motivate your student’s analysis of screen ratios and what proportions they…

The Appalachian Trail is one long hiking trail that begins in Georgia and ends on Mount Katadin, Maine. Fall is a beautiful time to be outdoors or on the Trail. This activity is about calculating the needs and rates involved…

Lately the news is filled with talk of the Euro, US foreign debt, the fragility of European monetary systems, and the interdependence of all of these crisis. In this activity students become familiar with the Euro, practice translating the Euro’s…