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Stock Market headlines - Biggest losses since 2008
Algebra Number Sense Social Studies Current events Ratio and Proportion Probability and Statistics
This year the Dow Jones Industrial Average made headlines as it dropped in March and April. The Dow is measured in points but this decline can also be measured in the percentage lost.  W...
6.RP 6th 7th 8th HS 7.RP.A percentage change Dow Jones relative loss

World record Snickers Bar
Algebra Number Sense Geometry Food Ratio and Proportion
  In late January, workers at the Mars Wrigley plant in Waco, Texas created this giant Snickers Bar. It won a spot in The Guinness Book of Records as the World's largest Snicker's Bar. Wh...
6.RP.2 6.RP.3 7.RP.2 7.G.1 6th 7th 8th similarity cross section

What is with this chart?
Algebra Number Sense Social Studies Ratio and Proportion Probability and Statistics
A fellow teacher, Laura Deschaines, saw this chart on the news the other night.  What do you notice?  Does anything seem amiss?  What should it look like? For Adventurer members we...
percent problem solving 3.MD 4.MD 6.RP 7.RP MP4 charts Coronavirus

Mixing colors with food dye
Number Sense Food Holidays Art
It's time to dye eggs! What do you wonder about these recipes (See the activity) for coloring? What would happen if I used the wrong recipe (i.e. cake mix instead of egg ...
Data and Probability proportions 5.NF 6th 7th 5th 4.NF 6.RP.A 7.RP.A saturation hue shade Easter

Hoarding stopped!
Current events Ratio and Proportion Probability and Statistics
  A Danish market found an interesting way to limit hoarding of hand sanitizer. How much are these costs in your currency? What is the unit price on these bottles...
percent increase 7.EE 6th 7th 8th HS monetary conversion unit pricing 6.RP.A 7.RP.A Coronavirus

Data remaining ... tricky
Algebra Number Sense Ratio and Proportion Probability and Statistics
I checked my data usage for the month.  What do you notice and wonder (see the activity)?   What could my data plan be? How much have I used? How much will...
6.RP.3 7.RP.3 6.RP.A 7.RP.A percentage calculations 8th HS

Which gasoline is the cheapest?
Algebra Number Sense Ratio and Proportion
When Brian traveled to Crete last summer with his wife and son on an Archaeological dig, buying gasoline for his small rental car got him wondering again. He was pretty g...
6.RP.3 7.RP.1 7.RP.3 6th 7th 8th HS gasoline conversion conversion rates unit fractions

How many delegates does each state get to send to the Democratic Convention?
Number Sense Social Studies Current events Ratio and Proportion Probability and Statistics
  Texas gets to send a lot more delegates to the July National Democratic Convention than New Hampshire does.  How do they figure out what each state's fair number of delegates ...
percent 6.RP 7.RP 7.EE 6th 7th 8th HS 6.EE.A 6.EE.B HSA.SEE evaluating expressions delegate math

K-Pop and BTS, how much can they earn from Youtube and Spotify?
Number Sense Social Studies Art Current events Ratio and Proportion
Bring a little K-pop music to your class with this activity. Jason Kibbe, a terrific middle school math teacher in Chambersburg, PA, sent us an activity that he created for one of his stude...
3.MD 4.MD 5.MD 6.RP 7.RP percentages 6th 7th 5th 3rd 4th earnings unit rates BTS Youtube Spotify kpop music

It's Girl Scout cookie time again!
Algebra Number Sense Social Studies Food Ratio and Proportion
  Let your students talk about their favorite Girl Scout cookies as they figure out what the local GS chapter really earns from these sales.  Use this old graphic (where a box...
6.RP 7.RP 6.EE 7.EE MP3 6th 7th 5th MP4 food

The Forever Roll
Algebra Number Sense Geometry Ratio and Proportion Funny
  That's a big roll of toilet paper!  Why would anyone need such a big roll of toilet paper?  How does it compare to Charmin's other toilet paper products? If this roll lasts for...
ratio rates 6.RP 7.RP 6.SP 7.SP HSS.IC 8.F 5.OA 6th 7th 8th HS 5th correlation HSM advertising tricks

How should I cook my turkey?
Algebra Number Sense Food Holidays
Should I oven bake it, deep fry it or barbecue and smoke it?  When do I have to wake up to begin preparations? How long will the cooking take?  How much will it cost?  How ma...
Data and Probability Recipe 6.RP.3 ratios Thanksgiving 5.NBT.7 7.NS.3 6.NS.3 4.MD.2 6th 7th 5th 4th 4.MD.1 7.RP.A unit ratio pounds per person Turkey cooking
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