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tags: geometry

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tags: geometry
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How many times bigger?
Algebra Number Sense Geometry 3-act tasks Any time math
Listen to students initial thoughts as they wrestle through what "bigger" means ... length? height? wheel-base? volume? [table id=10 /] Act One: What questions come to mind? How many times gr...
proportion ratio geometry scale 7.G.1 7.RP.3 7.G.6 MP1 MP2 6th 7th 8th HS HSG-MG.A.1 similar figure 3-act task MP4

Lighting the 2022 Olympic Torch
Algebra Geometry Math and Science Sports Holidays and Annual Events
On October 18th, 2021 the Olympic Torch was lit in Greece.  It was lit without the help of a flame or a match.  It was lit by concentrating the rays of our Sun. From Olympi...
geometry circle focus model angles 6th 7th 8th HS 5th 4.G.1 4.G.3 7.G.2 parabola Olympics

Wrapping presents on the diagonal
Algebra Number Sense Geometry Holidays and Annual Events
 Dr. Sara Santos is a popular mathematician and speaker on mathematics.  She has worked out a method for wrapping boxes (rectangular prisms) as efficiently as possible. (W...
geometry Christmas Pythagorean Theorem 8.G.7 7.G.6 MP3 nets MP.4 6th 7th 8th HS 5th HSG-SRT.C.8 HSG.MG.A.3 Holidays climate change pollution

Let's learn to gerrymander
Geometry Math and Social Studies Current events Ratio and Proportion
In this activity student first try to redistrict our pretend state in order to preserve the overall state's balance in its new districting plan.  Then, students redistrict our pretend state in a ...
MP1 MP2 MP7 6th 7th 8th HS 5th MP4 6.RPA 7.RPA geometry of balance redistricting

Total solar eclipse - apparent sizes
Algebra Geometry Math and 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 complete...
6.RP.3 7.RP.2 7.G.1 trigonometry 7.G MP2 MP3 HS HSG HSG-SRT.C.8 HSF 7.RP.A HSG.SRT.D.11 total eclipse annular eclipse angular diameter apparent diameter HSG.SRT.C.6 geometry Solar geometry distance

What's my angle?
Geometry Math and Science
I'm going to help save the planet by adding solar panels to my roof! Should I tilt the panels on my roof to more accurately aim towards the Sun? If so, at what angle should I use? S...
latitude MP2 Earth day 8th HS 7.G.B HSG.SRT Solar panel angles Solar geometry 8.EE.B HSG.CO HS.TF HS.C climate change trigonometry

Rescue of the Chilean miners - The 33
Geometry Math and Science
On August 5, 2010, the San Jose copper-gold mine near Copiapó, Chile collapsed stranding 33 miners in a large cavern more than 2,000 feet below ground. A new movie has just been released about the inc...
Volume cylinder 8.G.9 surface area 7th 8th HS HSG-MG.A.1 HSG.MG.A.2 geometry

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...
geometry 6.G 7.G comparisons nets mapping 3-d representations Earth day 6th 7th 8th HS HSG-GMD.B HSG-MG.A

Geometry of Flooding
Number Sense Geometry Math and Science
In 2010, March was so rainy that flooding was the topic of every newscast and many, many conversations. The picture shows how students went home from school in Wayland Mass. on Mar...
measurement percent flood flooding geometry Volume 5.MD 6.RP 6.G 7.RP 7.G 6.EE surface area 6th 7th 8th HS 5th HSG HSF weather
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