tags: RP

tags: RP
We found 234 post available for you

Cost of light bulbs - updated!

Algebra Number Sense Math and Science Math and Social Studies Ratio and Proportion Data and probability
There's a lot of misinformation out there about the cost to consumers of CFL and LED bulbs and the savings in energy and money that could be realized. Let your students "do the math" and realiz...

Green, green river

Algebra Number Sense Holidays and Annual Events Ratio and Proportion
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 ...

Shamrock Shake

Number Sense Math and Science Math and Food Holidays and Annual Events
For Saint Patrick's Day add a little nutrition math to your celebration.  In this post we look at calories, carbohydrates, sugars, fats, and proteins to decide what would be left for our day's ...

Which TV is the Best Deal?

Number Sense Geometry
Check out the TVs.  All have essentially the same features, only the size of the screen varies.  Which TV do you think is the best deal? Explore area and unit pricing to determine which H...

HDTV Surprise!

Number Sense Geometry
  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 ...

California wildfire

Number Sense Geometry Math and Science
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 us...

Bits, bytes, and nibbles

Algebra Number Sense Math and Science Ratio and Proportion
Clicking on the image will show it larger. I'm not very good at understanding how large my device capacities are and how big the files that I want to download are in comparison.  I decid...

Raising the bar

Algebra Number Sense Math and Science Ratio and Proportion
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 fe...

Methane math

Algebra Number Sense Math and Science Math and Social Studies Math and Food
Updated!  Carbon dioxide and methane are our two most prevalent human-contributed greenhouse gases.  This holstein cow is one of many huge contributors to our methane production. &nb...

Ladder figuring

Algebra Number Sense Geometry
   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 p...
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