tags: change

tags: change
We found 29 post available for you

Alarming ice cracks on Brunt Ice Sheet in Antarctica

Algebra Number Sense Geometry Math and Science
  A new, fast-growing ice crack is forcing the Halley VI British research station in Antarctica (shown above) to be moved.  Fear of a huge break-off from the ice sheet is alarming no...

Are these really 70% off?

Algebra Number Sense Ratio and Proportion
We ran into this sale online. Is that advertisement correct?  Do they just want us to believe their math and not question what is really 70% off?  Is everything or...

Pottytalk

Algebra Number Sense Math and Science
  I'm trying to be more savy about wasting our resources.  I have really old fashioned toilets and I'm trying to figure out if I should invest in saving water.  Can you help me? For...

What's my angle?

Geometry Math and Science
I'm going to help save the planet by adding solar panels to my roof! Should I tilt the panels on my roof to more accurately aim towards the Sun? If so, at what angle should I use? S...

McDonalds moves towards antibiotic-free chicken

Number Sense Geometry Math and Science Math and Food Ratio and Proportion
   Recently McDonald's announced that by 2016 they will use only chicken raised without the antibiotics that are used in human medicine.  McDonald's plans to join Chick-fil-A, Pa...

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...

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...

Fast Growing Plant

Algebra Number Sense
This activity/post is a little different than are usual posts.  We look at a particular math concept and consider how to use context, models and CCSS math practices to increase stud...

Occupy Wall Street protest is growing

Number Sense Math and Social Studies
   The Occupy Wall Street (OWS) movement has grown since it began on September 17th.  Students can look at charts that show percent mentions of the demonstrations and calculate the p...
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