tags: ratio

tags: ratio
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More eruptions on Hawai'i's Kilauea

Algebra Geometry Math and 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...

Boeing 787 draws an airplane over the United States

Number Sense Geometry Ratio and Proportion
Recently, pilots of a Boeing 787 testing a new set of Rolls Royce engines, fulfilled their FAA required long-distance endurance requirement in an unusual way. The Boeing pilots decided to have ...

What me? Irrational?

Number Sense
We've found that some students believe that the approximation that their calculators show for irrational numbers is exact.  Here's an activity that you can advertise as long multiplication ...

Pizza party figuring

Number Sense Geometry Math and Food
  In this activity students decide how to divide 2 pizzas amongst 6 adults and 3 pizzas amongst 8 kids.  Fractional pizza parts need to be drawn and considerations discussed about which f...

Super Bowl ads and scientific notation

Algebra Number Sense Holidays and Annual Events
The Super Bowl is over now and all of the ads have been seen. Let your students revisit and reflect on the interesting commercials with this scientific notation a...

Is this promo a good deal?

Number Sense Math and Food Ratio and Proportion Data and probability
McDonald's was offering an "Arch Card" special deal. If you bought an Arch Card for $100 you were entitled to a free BigMac or EggMcMuffin every week for a full year. The card was only offered a...

Hands of Support

Math and Art Ratio and Proportion 3-act tasks Data and probability
Lorenzo Quinn, an Italian sculptor, created and temporarily installed this piece of art entitled "Support" in Venice.  Quinn used his own children's hands to design this piece.  His in...

Population Clock

Algebra Number Sense Ratio and Proportion Data and probability
How in the world does this clock conclude that there is a net gain in the United States of one person every 14 seconds? Have a little care about younger children when using this activity. T...

Water saving toilets

Geometry Math and Science Ratio and Proportion Data and probability
     How much water is used? How much water could be saved? For Adventurer members we have an editable Word docx and solutions with added world-wide information.

Immigration numbers

Algebra Math and Social Studies Ratio and Proportion Data and probability
Here's an opportunity to work with calculating percents and the percent changes in the U.S. immigrant population. Students can reflect on what those changes demonstrate. Start your class with this ...
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