Tag: 7.RP

Which car should I buy?

Presidents Day is also about car sales. Should you buy a hybrid car or an electric car to save money?  What about the environmental considerations? Students create equations for finding the break-even points of these vehicles by mileage and years…

Columbus’s progression across the Atlantic

The Niña Columbus Day is a bit of an enigma that used to be celebrated throughout all of the Americas. Indigenous people were not treated well by the European colonization that began with Columbus’s voyage. For that reason, many U.S.states…

That’s a big tomato!

These Aussi tomatoes (the tomato on the left of all of the tomatoes) are huge.  How much do you guess one weighs? Can you figure it out?

Saint Patrick’s Day

Green, green river – They’re doing it again. In Chicago, the local plumbers union “dye” the Chicago River emerald green.  Students learn the meaning of PPM (parts per million) and  attempt to figure out how much dye is used to sufficiently…

Winter Olympics, PyeongChang: February 9 – 25

Scoring Ski jumping – 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…

Cost of hosting Olympic games

Clicking on this image will show it larger in a new window. Hosting the Olympics sure does cost a lot. Why is that? How much money is $5 billion dollars? What is a cost overrun? Why would a country want…

Water saving toilets

    How much water is used? How much water could be saved? The activity: PottyTime-SavingWater.pdf CCSS: 5.MD.1, 5.NBT.7, 6.RP.3, 7.RP.3, MP2

Tick time and Lyme disease

Deer tick

With the start of summer and wonderful outdoor activities, it might be good to examine the growth of Lyme disease occurrences in the United States.  The Center for Disease Control and Prevention (CDC) has published maps for all of the…

Patriots’ Day

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…

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…

Which is the best deal?

How do you calculate and justify which deal is a better savings?  By dollars saved?  By percent saved? By some other measure? The activity: WhichDealOffersMostValue.pdf CCSS: 4.OA, 4.NBT, 4.MD.A, 5.NBT, 6.RP, 6.EE, 7.RP, 7.EE.A

How much can my DVR record?

How many hours of HD video can my DVR strore? How about SD video? I love my DVR.  I can record my shows and movies and watch them whenever I want.  I know that when I record HD programs my…

New Horizons spacecraft observes Pluto

The New Horizon space probe was launched from Cape Canaveral on January 19, 2006. It has now come close to Pluto and has sent its first close-up images back to Earth.              

Tornadoes

Tornadoes have devastated the Great Plains of the U.S. in the last few days.  Oklahoma, Texas, Nebraska, Arkansas and Kansas have been brutally hit with these powerful events. Involve your students in a better understanding of the ranking and severity of…