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Tags: 3.MD, HSA-CED, percent change, rational numbers, charts,
tags: percent
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Should I get the Big One?
Algebra Food Ratio and Proportion
  Let your students decide if the BIG one is a fair deal.    Which size will they get?  Which size offers the most value?  Make a guess, then do the math.
Data and Probability 7.RP.2 7.RP.3 7.EE.3 7th 8th percent change

Proposed southern border wall
Number Sense Social Studies Current events Ratio and Proportion
You have probably heard about the proposed border wall that may go up along the U.S./Mexico border.  How much wall needs to be built? How much will that cost? What is that per mile? Per foo...
5.NBT 6th 7th 5th unit pricing 6.RP.A 7.RP.A HSM cost per unit understanding large numbers operations with fractions decimal percent

Are these really 70% off?
Algebra Number Sense Ratio and Proportion
We ran into this sale online. Is that advertisement correct?  Do they just want us to believe their math and not question what is really 70% off?  Is everything or...
Data and Probability percents 6.RP.3 ratios 7.RP.3 7th 6.RP.A 7.RP.A change discount salem 6th shopping clothes

Pokémon GO! I should have invested
Algebra Number Sense Current events Ratio and Proportion Probability and Statistics
Pikachu Pokémon GO is all the rage.  News reports show people glued to their smart phones as they travel to nearby landmarks where virtual critters appear and need to be caught ...
MP2 MP.4 6th 7th 8th HS 5th 6.SP.B 7.SP.B 6.RP.A 7.RP.A megabytes gigabytes 5.G.A gaming earnings analyzing graphs percent usage data usage Pokémon Investment

Double Discount
Algebra Number Sense
   Wow, check out this sale!  I'm gonna be able to get this great hoodie so cheap!   If I use the promo code what will be the total percent off?
Data and Probability percent 7.RP.3 6th 7th 8th HS HSF-IF.C.8b 6RP.3 HSF.LE.A.1c discount sale percent of a percent decay shopping

How did they figure these tips?
Number Sense Social Studies Food
  Act I:  This restaurant bill has the suggested tips, but they are smudged out.  What should they be?  Consider having students make a fast 5 to 10 -second prediction in th...
Data and Probability percents 6.RP.3 7.RP.3 6th 7th 8th sale tips tipping 3-act

Which is the best deal?
Algebra Number Sense Food Ratio and Proportion
How do you calculate and justify which deal is a better savings?  By dollars saved?  By percent saved? By some other measure? Looking at 4 different deals, students will need to...
5.NBT 6.RP 7.RP 6.EE 6th 7th 5th 4th 4.OA 4.MD.A sale 7.EE.A 4.NBT percent discount savings percent

Mark Zuckerberg and Priscilla Chan to give away 99% of their shares of Facebook
Algebra Number Sense Social Studies Ratio and Proportion
  That sounds like an awful lot of their Facebook shares.  They want to help create a better world for their daughter, Max. I wonder if they will have enough left over to live on? The...
Data and Probability percents 6.RP.3 percent increase 7.RP.3 7.EE.3 6th 7th 8th HS HSF.LE.A.1 HSF-IF.C.8b

Growth of Facebook

Algebra Number Sense Ratio and Proportion Probability and Statistics
 In this activity, students analyze and graph the numbers and decide if Facebook's growth in the first 20 years has been linear, exponential, meteoric, or something else.  Will the number of...
Scatter Plot percent Business Data exponential growth news growth factor 7.RP.3 HSS-ID.B.6 8.SP.1 8.F.4 7th 8th HS F-LE linear growth F-IF.6

Green, green river
Algebra Number Sense Holidays Ratio and Proportion
During the St. Patrick's Day parade in Chicago, the local plumbers union dyes the Chicago River emerald green. Students learn what PPM (parts per million) means and  attempt to figure ...
Data and Probability proportion ratio percent Unit rate estimation Volume 5.MD 6.RP 6.G 7.RP 7.G 6th 7th 5th St. Patrick's Day

Shamrock Shake
Number Sense Science Food Holidays
For Saint Patrick's Day add a little nutrition math to your celebration.  In this post we look at calories, carbohydrates, sugars, fats, and proteins to decide what would be left for our day's ...
percent data analysis estimation food nutrition 6.RP 6.SP 7.SP 6th 7th 5th St. Patrick's Day

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
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