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Tags: HSA.REI.B.4, 7.G.B, HSA-SSE, HSN.RNB, HSA.APR.C,
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Fast Growing Plant
Algebra Number Sense
 Students look into a plant that doubles in height every month and work out a rule for its height at any point, then run that rule backwards to discover why a positive number raised to a negative expo...
8th 8th HS Fractions patterns negative exponents exponential growth 8.EE.1 rate of change

All you can eat for 10 cents
Algebra Number Sense Food
The history of the Dairy Queen franchise began with this ad in Illinois in 1938: All the ice cream that you can eat for only 10 cents! We know that 10 cents was worth more in the past, but was it...
8th 8th HS 9th 6th 7th 5th 6.RP.A 7.RP.A3 HSF.IF.C HSF.LE.A estimation summer inflation inflation rate money exponential growth exponential percentage change Business

National Donut Day (2 activities)
Algebra Geometry Food Current events Ratio and Proportion 3-act tasks
 Friday, June 5th, is National Donut Day.  We have 2 activities to support this silly holiday.  How much have doughnuts changed? Students become familiar with the word "torus"...
5th 6th 7th 8th HS estimation Volume 6.RP.3 7.G.1 reasoning MP1 MP2 MP3 Torus donuts donut

NBA Finals 2026
Sports Ratio and Proportion Probability and Statistics
 Teams are competing in the playoffs, and the NBA Finals are right around the corner.  Let's do a little sports history and data analysis through the context of NBA Finals math!  T...
Data and Probability Data 6th 7th 8th sports basketball NBA 6.SP.5 6.SP.3 7.SP.4 8.SP.1 Venn Diagram

Memorial Day 2026
Number Sense Holidays
Memorial Day is a US holiday observed on the last Monday in May. Who are we honoring? How did the holiday come about? Isn't Memorial Day usually on May 30th? Students learn a little about the his...
6th 7th 8th calendar patterns patterns 6.RP 7.RP 7.SP 5.OA 5th

Thank you, mother and father, for all of those diapers (Updated)
Algebra Number Sense Holidays Algebra Number Sense Holidays
Which is a better deal, cloth or disposable diapers?  How much did you cost your parents in diapers?  In the future, how much could your kid's diapers cost?  Help students realize all t...
6th 7th 8th 6.EE.9 7.EE.4 8.EE.8 8.F.4 8.F.2 MP7 MP8 linear equations linear relationships graphing graphing linear relationships inflation diapers Mother's day father's day 6th 7th 8th 6.EE.9 7.EE.4 8.EE.8 8.F.4 8.F.2 MP7 MP8 linear equations linear relationships graphing graphing linear relationships inflation diapers Mother's day father's day

Cost of light bulbs (Updated)
Social Studies Ratio and Proportion
With incandescent and halogen bulbs banned since 2023, students compare CFL, LED, and Smart LED bulbs, calculate energy use in kilowatt-hours, and determine which bulb is the better deal over time.&nb...
slope graphing linear relationships linear relationships Earth day environment rates 6.RP.3 6.EE.9 6.NS.3 7th 8th 6th

Hybrid, Electric or Gasoline
Algebra Number Sense Probability and Statistics
 Gas prices are up, EVs are everywhere, and hybrid technology keeps improving!So which car is better? Which car would you/your family choose? Students compare the latest prices (updated) of a hyb...
6.RP 7.RP 7th 8th 8th HS 8.EE.C systems of equations environment finding equations linear equations slope graphing graphing linear relationships graphing equations to find solution

The Game of GO
Number Sense Social Studies
In March 2016, Lee Se-dol, one of the world's best Go players, and Google's artificial intelligence program "AlphaGo" had their first match. (Watch the incredible Documentary) Exactly 10 years la...
8th 8th HS combinations Data and Probability HSS-CP number of ways game estimation

Pixar vs DreamWorks

Movies and Entertainment Probability and Statistics
 Animated films are a billion-dollar industry.  The two biggest producers of animated films are DreamWorks and Pixar.  The two have been going head-to-head for more than ten years now. ...
7th 8th 8th HS quartiles bar graph data analysis Data interquartile range mean measures of central tendency central tendency box whisker plot movies median 6th 6.SP.3 6.SP.5 7.SP.4 animation conflict HSS.ID.A.1 HSS.ID.A.2 HSS.ID.A.3

Peeps
Number Sense Food Holidays Probability and Statistics
"How many Peeps do you think are sold for Easter in the U.S.?"In this updated activity, students start by making their own guesses for the number of Peeps sold each Easter. They then consider what inf...
5th 6th 7th 8th Easter mean estimation MP1 MP2 MP3 candy 7.SP.1 7.SP.2

Pi Day Activities
Geometry Holidays
 5 Activities for π day!  What is π? The logic of finding the perimeters of inscribed and circumscribed polygons as the number of sides to the polygons increases. Good in...
4th 5th 6th 7th 8th 8th HS measurement pi circumference circle circle circumference trigonometry diameter radius 7.G.4 hat size 8.NS.1 reasoning patterns
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