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Another year of Never Ending Pasta (Updated)
Algebra Number Sense Food
Updated – 2025/2026 Olive Garden again offered a $100 pass for never-ending pasta!  The 21,000 patrons who quickly (in less than a minute) bought all of the passes will be entitled to as muc...
5.NBT.7 MP3 6th 5th 4th 4.OA.3 MP4 food Business

How high can a gymnastic score be?
Algebra Number Sense Sports
Gymnasts have just successfully competed in St Louis, Missouri for positions on the USA Olympic team.  As you watch their performances don't you wonder how their scores are determined&nb...
Data and Probability gymnastics 5.NBT.7 6.EE.2 6.NS.3 6.SP 6th 7th 5th Olympics elementary

Flag Art
Number Sense Geometry Social Studies Art Ratio and Proportion
    A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday. In this activity (Flags) students measure; create whole number ratios for the official...
proportions 6.RP.2 6.RP.3 7.RP.1 7.RP.2 7.G.1 6.RP.1 ratios 5.NBT 6th 7th 8th 5th 4th 5.NF.B 6.RP.A 7.RP.A 4.NBT ratio conversion

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

How Many Pennies did Otha Save?

Number Sense Geometry 3-act tasks Probability and Statistics
Otha Anders used picking up pennies as a way to remember to pray.  In this 3-act activity we try to estimate how much he actually collected and stored in 5 gallon water jugs. This ...
average rate Three Act Task 5.NBT.7 7.EE.3 7.NS.3 6.NS.3 estimate MP.1 MP.3 MP.4 MP.2 6th 7th 5th approximation 3-act task 5.MD.3 money pennies

Chili Con Queso
Number Sense Food Ratio and Proportion 3-act tasks Probability and Statistics Wow factor
Act 1: Take a look at the promo at Moe's. What is the first question that comes to mind? How much does a 42-gallon jug of Chili Con Queso cost?  How many cups or bowls of Chili Co...
ratio proportions 6.RP 5.NBT.5 5.MD.1 6th 5th quantities 3-act task

Cost of light bulbs

Algebra Number Sense Science Social Studies Ratio and Proportion Probability and Statistics
 This activity has been updated (2026). See the new activity here:https://www.yummymath.com/post/light-bulb-cost-comparison/ There's a lot of misinformation out there about the cost to consu...
Unit rate estimation environment 6.EE.9 6.RP.3 rates 5.NBT.7 6.EE.1 6.NS.3 8.EE.8 Earth day 6th 7th 8th HS 5th 5.NBT.3 HSF.IF.C.7.B HSA.REI.C.6 climate change slope linear relationships

Scoring Olympic ski jumping
Number Sense Geometry Sports
The scoring rubric for each of the Olympic events is intended to eliminate the possibility of scoring bias from the judges.  Let your students learn more about the scoring of one event and deci...
Data and Probability 5.NBT 6.NS 7.NS 6.EE 7.EE 5.OA HSA-CED 6th 7th 8th HS 5th Olympics ski jumping scoring data analysis integer

Which TV is the Best Deal?
Number Sense Geometry
Check out the TVs.  All have essentially the same features, only the size of the screen varies.  Which TV do you think is the best deal? Explore area and unit pricing to determine which H...
Unit rate area TV 6.RP.3 5.NBT.7 6.G.1 5.NBT.5 6th 7th 5th 4th 4.MD.3 multiplication diagonal shopping similar figure

Bits, bytes, and nibbles
Algebra Number Sense Science Ratio and Proportion
Clicking on the image will show it larger. I'm not very good at understanding how large my device capacities are and how big the files that I want to download are in comparison.  I decid...
Data and Probability conversion 6.RP 7.RP 6.EE.1 6.EE.2 7.EE 7.SP 6th 7th 8th HS 5th 5.NBT.2 8.EE.1 making an orderly list unit ratios HS.modeling HSN-Q HSS-CP.9

Cruising
Algebra Number Sense Science Food Ratio and Proportion Probability and Statistics
There have been a lot of cruise ship mishaps and disasters this year. While these are in the news, let your students consider how these floating cities manage their resources and which of their need...
proportion ratio measurement Unit rate Data food news 6.RP.3 7.RP.3 5.NBT.7 7.NS.3 6.NS.3 6th 7th 8th 5th MP6

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