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Mardi Gras, 2023
Algebra Number Sense Holidays Ratio and Proportion
Updated for 2023! Tuesday, February 21, 2023, will be the day before Ash Wednesday and the start of the season of Lent.  Mardi Gras is a last hoorah and is celebrated throughout the world ...
Data and Probability proportion ratio percent Unit rate environment 6.RP 7.RP 5.NF 6.EE 6th 7th 5th climate change

Shopping season already!
Number Sense Social Studies Holidays Ratio and Proportion Probability and Statistics
We used to see holiday sales right after Thanksgiving but, surprisingly, holiday shopping has already begun. Sales are advertised everywhere.  Students will be able to add some understanding an...
ratio percent 6.RP.3 7.EE.2 7.EE.3 6th 7th 8th 5th sale

I should have invested!
Algebra Number Sense Ratio and Proportion Probability and Statistics
  People who have invested their money in the stock markets could have made a lot of money in recent years.  Students use yearly percent increase data to decide which stock: Apple, Dis...
percent increase 7.RP.3 HSF-LE.A.2 HSF-LE.B.5 percentages 7th 8th HS HSN.RN.A.2 annual yearly return gains arithmetic mean geometric mean conflict Investment

Which sale would you rather use?
Algebra Number Sense Ratio and Proportion
In this short activity, students decide if these two sales are the same. If not, which is better? How would you explain this to someone?
percents 7.RP.3 6.RP discounts HSA-CED 6th 7th 8th HS HSF sales shopping

Federal debt and deficit - What are they?
Number Sense Social Studies Current events Ratio and Proportion Probability and Statistics
What's the big deal with our national debt?  Do we actually borrow money to cover our debt?  If we do, imagine the interest charges? Help your students (and their families) understa...
percent deficit debt 6.NS 6.RP 7.EE MP8 8.F HSF-IF 6th 7th 8th HS MP5 MP4 revenue expenses stacked bar graph

Steepness and fall hiking
Algebra Number Sense Geometry Science Sports
Fall is a beautiful time of year for hiking. Many students will be walking in the woods and mountains to enjoy the colorful leaves and the cool weather outside.  Let them combine what they ...
slope Pythagorean Theorem 8.G.7 7.EE.3 HSF-IF.B.6 8.EE.5 MP1 MP2 7th 8th HS 8.EE.6 8.G.8 HSG-MG.A.1 MP6 percent change

Shoprite's solar energy goals on the African continent
Algebra Geometry Science Social Studies Current events Probability and Statistics
  Shoprite is the largest supermarket chain in Africa.  The company is presently engaged in increasing their use of solar power to harness the abundant natural resource of solar potentia...
percents 4.MD 5.MD 6.RP 7.RP 6th 7th 5th 4th geography conversions solar energy climate sustainability

Is the Electoral College fair?
Number Sense Social Studies Current events Ratio and Proportion
Show your students this really cute segment comparing how the Electoral College functions in our elections to what students think is fair and just. From the New York Times, Electoral ...
Data and Probability percents electoral college 6.RP 7.RP 6th 7th 8th HS majority bias in congressional districting popular vote analyzing bias

Monster cake
Number Sense Geometry Food Ratio and Proportion
Jodie Berman, a high school math teacher in Chicago, loves mathematics and loves to cook.  We've created an activity based on her Monster Cake (composed ...
Fractions measurement percent estimation Volume 6.RP 7.RP 5.NF 7.G.6 surface area 6.G.4 6th 7th 5th 4th circle area food

Coronavirus trends
Algebra Science Social Studies Current events Probability and Statistics
Johns Hopkins University of Medicine has a team that maintains current maps and data about the Coronavirus.  They record changes and show trends of the virus activity throughout the World. Enjo...
percents MP2 MP3 MP7 HSS.IC 7th 8th HS 6.SP.B 6.RP.A 7.RP.A 8.SP.A 7.SP.A MP4 HSMD population density Coronavirus

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

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
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