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Federal debt and deficit - What are they?

Number Sense Social Studies Current events Ratio and Proportion Probability and Statistics
What's the big deal with our national debt?  Do we actually borrow money to cover our debt?  If we do, imagine the interest charges? Help your students (and their families) understa...

The new R-naught number

Algebra Number Sense Science Current events Probability and Statistics
There's a number used to quantify how fast a virus will spread, the R-naught number.  As the coronavirus spread though out the world, we saw how the threat of infection was measured and und...

At least the days are getting longer

Algebra Number Sense Science Holidays Current events Ratio and Proportion Probability and Statistics
What's your guess?  How fast are the number of daylight hours changing each day?  Are the changes dramatic or subtle? Students make guesses; compute how l...

December 21, 2020 - Great conjunction

Algebra Number Sense Geometry 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...

So just print some more money!

Number Sense Social Studies Current events Ratio and Proportion Probability and Statistics
                     What's the big deal with our deficit? Do we actually borrow money to cover our debt? If we do, imagine the interest charges? Help your students...

Madden Glitch

Algebra Sports Current events Probability and Statistics
It's the talk of the town. Madden video games have had some issues. Check this one out.     Here's one that has Le'Veon Bell seeming to fly from the Bear's goal line to the center...

More eruptions on Hawai'i's Kilauea

Algebra Geometry Science Current events Ratio and Proportion
The Volcano Kilauea is continuing to spew molten lava and ash on the island of Hawai'i. This volcano is on the tip of the southern most Hawaiian Island. Is that significant? In this activit...

Giant iceberg breaks off from Antarctica

Science Current events Ratio and Proportion Probability and Statistics
       The crack in Antarctica's Larson C ice shelf has been growing for years (2017).  Has the speed of the rift's growth stayed about the same? increased? dec...
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