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We found 52 post available for you

Fish tale, go figure!
Algebra Geometry 3-act tasks
I have two fish in my aquarium.  Betty is my white goldfish. She often stays really close to the front wall as she swims towards her food. Stripe, my clownfish, usually swims diagonally a...
Pythagorean Theorem 3-d shapes 8.G.7 8th HS HSG-SRT.C.8 3-act task 3-d Pythagorean Theorem 8.G.A.4 trigonometry

Tiny vacuum with a huge reach
Algebra Number Sense Geometry 3-act tasks
From the vacuum description and advertisement in the PDF, how long do you think its cord must be? Thanks to Brian Shoemaker, Newton, MA teacher, for the idea and pictures.
MP.1 MP.3 MP.4 MP.2 6th 7th 8th HS 7.G.B 8.G.B HSM circle area HSG.MG HSG.C trigonometry angles

How long will it take you to trick-or-treat?
Number Sense Geometry Holidays and Annual Events
It's Halloween and this is your neighborhood. How long will it take you to trick or treat at every house in your neighborhood? Possible conversation with students: How long will it tak...
problem solving Halloween estimation MP.1 MP.3 MP.7 MP.2 4.MD.2 6th 7th 8th 5th 3rd 4th 4.NBT.4 8.G.8 4.MD.3 4.NBT.5 3.NBT.2 3.NBT

Largest coffee, new world record
Algebra Number Sense Geometry Math and Food
The world record for the largest cup of coffee was recently set (see picture above).  In this activity students explore scale, similar figures, volume and measurement as they estimate the...
proportion measurement scale Volume circle cylinder metric simliar figures 8.G.9 G.MG.1 G.GMD.3 7th 8th HS HSG-MG.A.1 coffee

Point of view
Geometry Math and Art
If you have a set of cubes for your classroom, this would make a great group hands-on project. Its an old puzzle but the activity deserves a revisit. Below are two straight-on images of my ...
8.G 6th 7th 8th HS 5th 4th HSG.CO.A 4.G.A HSG.MGA parallel perspective line of site

Spiraling squares - compass and straight edge
Algebra Number Sense Geometry Holidays and Annual Events Math and Art
Can you see the many spirals in this design? Students calculate the size of each increasing round of squares and consider what sort of spirals these must be. Working wit...
Pythagorean Theorem math art 7th 8th HS HSG 8.G.B irrational numbers HSG.CO spirals endofyear art

How long would it take to build this underground house and pool?
Algebra Number Sense Geometry Math and Social Studies 3-act tasks
The building of this underground house and pool was presented by Cayote Person and his partner, Mark Lavins, on their youtube channel, "Brave Wilderness." At BraveWilderness.com the busin...
estimation Volume rate 6.RP 6.G 7.RP 7.G 7.EE MP8 8.G 6th 7th 8th HS 5th 5.G HSG MP5 3-act

Huge Key Lime pie
Number Sense Geometry Math and Food Ratio and Proportion
More for π Day!   On a cold and snowy day in Boston, two chefs created a huge Key Lime pie to remind the frozen people of the Northeast how tasty and warm the Keys of Florida are. ...
ratio estimation Volume 4.MD 6.RP 7.RP 7.G 8.G 6th 7th 8th HS 5th 4th multiple HSG.GMD pi

Pythagorean Triples and coloring
Algebra Number Sense Geometry Math and Art
Pythagorean triples are not only handy for students to recognize but produce some interesting and lovely patterns.  We've combined a little coloring with our Pythagorean Triple patter...
Pythagorean Theorem 7th 8th HS 7.G.B HSG 8.G.B HSS 8.SP.A HSA.APR.C.4 Pythagorean triples patterns

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...
6th 7th 8th 5th 4th geography 4.MD.A 6.EE.C 8.G.A 8.F.A geology tectonic motion rate calculations translation HSG.CO.A ratio unit rates
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