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Methane math
Algebra Number Sense Science Social Studies Food
   Updated!  Carbon dioxide and methane are our two most prevalent human-contributed greenhouse gases.  This holstein cow is one of many huge contributors to our methane produ...
Data and Probability percents 6.RP 7.RP 7.SP percents of percents pie charts global warming methane flatulence greenhouse gas 6th 7th 8th HS climate change Earth day

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

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

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

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

The Fiscal Cliff - sounds scary
Number Sense Social Studies
We've used a graphic to help students understand what is meant by the Fiscal Cliff.  Students will understand some of the terms and study the consequences of two upcoming scenarios.   The...
Data and Probability percents reading graphs fiscal cliff budget deficit debt 7.SP 8.SP HSF-IF 7th 8th HS

Is this possible?
Algebra Number Sense Geometry Food
Brian Shoemaker, a Newton, MA mathematics teacher, saw this Dunkin Donuts Mazda traveling down the road.   He wondered if that size coffee cup could really have coffee in it. &nbs...
ratio estimation Volume cone cylinder 8.G.9 coffee HSG-MG.1 7th 8th HS HSG.GMD.3 Frustum

My Facebook IPO investment
Number Sense Social Studies
What is an IPO?  Are they always good investments? Students analyze charts and data, learn a little about investing, calculate percent loss (unfortunately), and make some Facebook stock proj...
Data and Probability percent data analysis Business graph 7.RP 6.SP 7.SP 8.SP 6th 7th 8th HS S-ID

Storm cleanup
Algebra Number Sense Geometry Ratio and Proportion
This activity could be used as an introduction to trig ratios.  Students figure out the approximate length of the huge branch that I have to fell for safety and firewood. After approximating ...
Data and Probability measurement estimation trigonometry 7.RP G-SRT 7th 8th HS 8-RP weather HSG-MG.A HSG.SRT.C

Video game download
Algebra Number Sense Ratio and Proportion 3-act tasks Probability and Statistics
How long will it take me to download the video game? This can be done as a 3 Act Task.  To get started simply show the video and following picture to your class.ACT ONE: I decided to download a c...
proportion ratio estimation video games proportional 6.RP 7.RP 5.NF 7.EE 8.EE.5 S-IC 6th 7th 8th HS 5th 3-act task

It sure is cold out ... or is it?
Algebra Number Sense Science Probability and Statistics
Students ponder the relationship between place latitudes and average January temperatures while they try to discover a correlation. Is this a linear or near linear relationship? … averaging, mis...
line of best fit range linear equations mean slope Data average graph linear 6.SP.5 8.SP.2 8.SP.3 HSS-ID.B.6 A-CED 8.SP.1 8.EE.5 HSA-CED.A.2 6.SP 8.F 6th 8th S-ID F-LE HSF.LE.A.1 HSS.ID.C.7 weather HS modeling

Valentine's Cardioid
Geometry Holidays Art
WojciechSwiderski at the Polish language Wikipedia Happy Valentine's Day!     This PDF contains four ways students can draw cardioids for Valentine's Day. There is no solu...
graph circle cardioid math art heart graph 7th 8th HS HSN.CN.B polar graphing Valentine's Day
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