Geometry

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Sol LeWitt's pyramid - How might you count those blocks?

Algebra Number Sense Geometry Art
  Sol LeWitt, Four Sided Pyramid, 1999, Hirshhorn Museum Sculpture Garden, Washington DC Sol LeWitt (1928 - 2007) was a an American artist involved in Conceptual art and Minimalism. &n...

Fibonacci coloring

Algebra Number Sense Geometry Art
Let your students simply enjoy coloring our designs or artistically play with the whole creation of Φ designs. Simply coloring our Fibonacci patterns might allow students to ponder th...

Spiraling triples

Number Sense Geometry Art
Let students explore the patterns of perfect squares and Pythagorean Triples as they analyze our piece of art and decide why the resulting construction looks like spiraling squares. For a finale the...

Total solar eclipse - apparent sizes

Algebra Geometry Science Current events Ratio and Proportion
  Where will the eclipse be seen?  What if you are not in the path of totality?  Total solar eclipse?  What is apparent size?  How can the moon seem to cover the sun comp...

Fireworks on your calculator

Algebra Geometry Holidays Art
    Let your students experiment with their graphing calculators to create a nice fireworks display?  We've written a brief activity that questions students about manipula...

Measuring sea level

Algebra Number Sense Geometry Science Ratio and Proportion Probability and Statistics
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...

Kilauea's lava flow

Number Sense Geometry 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] The v...

My teacher says this stream is parabolic. Is he correct?

Algebra Number Sense Geometry Science
Instead of asking students to just believe what you've said, why not ask them to verify your assertions?  Students plot the points of the stream, perhaps map them with an equation generated b...

Geometry of Flooding

Number Sense Geometry Science
In 2010, March was so rainy that flooding was the topic of every newscast and many, many conversations. To this day, the March 2010 floods were described as “once-in-a-generation” river leve...
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