Geometry

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A parametric heart ... with love

Number Sense Geometry Holidays and Annual Events Math and Art
Valentine's Day is a good excuse to explore parametric equations. First students figure the coordinates of this figure using trigonometric unit triangles. Then they simplify and accelerate...

Do you have text neck?

Algebra Geometry Math and Science Data and probability
What does looking down at your electronic device do to your breathing? To your muscles? To your spine curvature? To your pain?  It can lead to a condition called Text Neck.  To learn more about Text...

Kilauea's lava flow

Number Sense Geometry Math and Science
[caption id="attachment_15749" align="aligncenter" width="500"] Halema‘uma‘u Lights the Morning Sky - Photo taken from the overlook by the Volcano House on January 30, 2014 - NPS photo[/caption] Th...

How large a TV should I get?

Algebra Number Sense Geometry
Whether you are in middle school or high school, someday you are going to be moving out and you might need to select the right size HDTV for your living space. I found this guide th...

The growth of Godzilla

Algebra Number Sense Geometry Data and probability
Image from Kris Holt: http://www.policymic.com/articles/76357/the-scary-way-godzilla-has-evolved-through-the-years-in-one-chart The new Godzilla movie is out at theaters.  ...

The Blue Marble

Geometry Math and Science Holidays and Annual Events
Sunday, April 22nd, 2018, is Earth Day. Use this activity to demonstrate the various mappings of our 3-d Earth to a 2-d piece of paper. Students compare maps with this famous photo and check to...

Scoring Olympic ski jumping

Number Sense Geometry Sports
The scoring rubric for each of the Olympic events is intended to eliminate the possibility of scoring bias from the judges.  Let your students learn more about the scoring of one event and deci...

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...
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