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Tags: horizontal slope, 5.NF.6, overrun, currency conversion, HSS,
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tags: HS
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My teacher says this stream is parabolic. Is he correct?
Algebra Number Sense Geometry Math and 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

Season 12, American Idol
Number Sense Holidays and Annual Events Data and probability
Let your student study American Idol viewing figures over the last eleven seasons. Students compare historical season premier and season finale audience size in several different ways to determi...
mean data analysis average median graph 6.SP.5 6.SP.3 7.SP.4 6.SP.2 6.SP.4 7. SP.3 box whisker plot 6th 7th HS stats

Lifespan of a meme, the Harlem Shake
Algebra Number Sense Math and Social Studies Data and probability
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

Snow Days
Algebra Math and Science
Here is a picture  from a recent snowfall at my house.  How Much Snow Did I Get?  Have students make an estimate.  Ask them for a guess that is probably a little to...
slope graph rate winter snow 8.F.B.5 HSF-IF.B.6 HSS-ID.B.6 HSF-LE.A.2 8.SP 7th 8th weather data analysis

Happy 14th B'ak'tun!
Number Sense Math and Science Math and 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 Math and 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 Math and 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 Math and 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
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