tags: change

tags: change
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AQI - Air Quality Index

Number Sense Math and Science Math and Social Studies Current events Data and probability
The AQI is a measurement of how much particulate matter, dangerous ozone, carbon monoxide, nitrogen dioxide and sulfur dioxide there is in the world's atmosphere at any one time and place. This W...

December 21, 2020 - Great conjunction

Algebra Number Sense Geometry Math and Science Current events
Right now, just after sunset, in the southwest sky, you can check out the planets of Jupiter and Saturn as they get closer and closer to each other. They are millions of miles apart but they app...

Extreme weather 2020

Number Sense Math and Science
Because of climate change, we've been having too many extreme weather events. There have been unusual droughts and heat in the West, an increased number of hurricanes, severe flooding, and high ...

Stock Market headlines - Biggest losses since 2008

Algebra Number Sense Math and Social Studies Current events Ratio and Proportion Data and probability
This year the Dow Jones Industrial Average made headlines as it dropped in March and April. The Dow is measured in points but this decline can also be measured in the percentage lost.  W...

Bears Ears revisited

Math and Social Studies Current events Data and probability
There is some beautiful land in Utah that was changed last year from federally protected land to Utah overseen land.  The buttes of Bears Ears (shown above) and the surrounding territory cont...

Louisiana

Algebra Number Sense Math and Science Math and Social Studies Current events Ratio and Proportion
We recently watched the approach of Hurricane Barry and worried about the fate of Louisiana. After the devastation of Hurricane Katrina, what would another powerful hurricane do to this fragile ...

Should I get the Big One?

Algebra Math and Food Ratio and Proportion
  Let your students decide if the BIG one is a fair deal.    Which size will they get?  Which size offers the most value?  Make a guess, then do the math.

Giant iceberg breaks off from Antarctica

Math and Science Current events Ratio and Proportion Data and probability
The crack in Antarctica's Larson C ice shelf has been growing for years.  Has the speed of the rift's growth stayed about the same? increased? decreased?  Do the math and discuss the...

Measuring sea level

Algebra Number Sense Geometry Math and Science Ratio and Proportion Data and probability
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...

Giant iceberg

Number Sense Geometry Math and Science Ratio and Proportion Data and probability
Ferryland, Newfoundland. JODY MARTIN / REUTERS Over the past Easter weekend this giant iceberg drifted passed Ferryland, Newfoundland.  Its hard to tell how large it actually is but...
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