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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...
parabolas HSA-SSE Excel HSA-CED HSA-REI HSF-LE vertex form 8th HS quadratic

Father's Day blueberry surprise
Number Sense Food Holidays
 Father's Day is coming up, and there is still time to have a tiny fraction review in the guise of celebrating Father's Day.This is a short activity that asks students to change the amounts in a ...
Fractions division father's day 7.NS.2 4.NF.4 5.NF.7 6.NS.1 6th 7th 5th 4th elementary

Ladder figuring
Algebra Number Sense Geometry
   Brian can't even go to his town's spring festival without seeing math. Let your class approximate the height or length of this ladder by using the relative size of the cars or the p...
estimation Pythagorean Theorem 6.RP 7.G right triangles 8.G 6th 7th 8th HS

Big gulp
Algebra Number Sense Science Food
Do you or your students love sugary drinks?  What if it were against the law to order a large sugary drink where you lived?  On September 13th, 2012 the New York City Health Department ban...
Data and Probability rates 6.RP 7.RP 7.SP large sodas healthy eating candy bar units 6th 7th 8th food Unit rate nutrition

Cicada swarmaggedon
Algebra Number Sense Science
Most of the life cycle of the Magicicada Septendecim is spent underground.  Then at 17 year intervals, these cicadas emerge from the ground, climb deciduous trees, molt into a...
patterns 6.NS.4 prime numbers cicadas life cycle magicicada septendecim biology 4.OA.4 elementary 6th 7th 5th 4th

Lifespan of a meme, the Harlem Shake
Algebra Number Sense Social Studies Probability and Statistics
Five friends who skateboard and video tape made up a strange dance one afternoon and filmed it on February 2nd (look it up on youtube!).  Now the whole world knows them and their da...
data analysis exponential growth 8.F.5 MP1 MP2 Harlem Shake MP3 8.F.3 HSS-IC.B.6 7th 8th HS

Cruising
Algebra Number Sense Science Food Ratio and Proportion Probability and Statistics
There have been a lot of cruise ship mishaps and disasters this year. While these are in the news, let your students consider how these floating cities manage their resources and which of their need...
proportion ratio measurement Unit rate Data food news 6.RP.3 7.RP.3 5.NBT.7 7.NS.3 6.NS.3 6th 7th 8th 5th MP6

Voyager on the edge
Algebra Number Sense Science Ratio and Proportion
The two Voyager space probes are in the news recently as they approach the edge of our solar system.  Scientist can tell that the Voyager's environments are changing.  They are receiving m...
Data and Probability proportion Fractions Unit rate rates 6.RP 7.RP 8.EE 6th 7th 8th 5th 4th 4.MD.C 5.MD.A astronomy 7.RP.3 unit conversion

Happy 14th B'ak'tun!
Number Sense Science Social Studies
Luckily, we’ve passed 12/21/2012 and the world is still here and we’ve made it into the start of the next Mayan calendar cycle ... the next B’ak’tun. The ancient Mayans had an interesting...
5.NBT 6.NS 8.EE 6th 7th 8th HS 5th 4th 4.NF HSN-RN history weather extremes LCM

How many movies can you see in one day?
Number Sense
Robert Kaplinsky at robertkaplinsky.com shared this lesson idea with Yummymath. With plenty of days off from school coming up you plan to spend a day at the movie theater.  You want to s...
Data and Probability time scheduling MP.3 3.MD.1 4.MD.2 6th 5th 3rd 4th
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