YUMMYMATH

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

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

How Much is a Tweet Worth?

Algebra Number Sense Social Studies Sports Ratio and Proportion Probability and Statistics

These days it seems everyone is on social media. Are you? Famous athletes and entertainers are on social media and they can make a lot of money. In this activity students study how ...

line of best fit Unit rate 6.RP.3 7.RP.2 8.SP.2 8.SP.3 HSS-ID.B.6 8.EE.5 8.F.4 HSF-LE.A.2 MP.4 6th 7th 8th HS HSS.ID.C.7 HSS-ID.C.8 graphing linear relationships

Free Flights?

Algebra Number Sense

This can't be right! If my flight cost $200 and I stayed for 10 days it would be free. Right? You can kick off this activity by asking students to think about where ...

data analysis 7.EE.4 HSA-CED.A.2 MP3 MP8 MP.4 7th 8th HS HSA.CED.A.1 relationships equations costs patterns

What's with the plovers?

Algebra Number Sense Science Ratio and Proportion Probability and Statistics

Cute little birds. Piping plovers are nesting on beaches along the Atlantic coast. Consequently beaches are often roped-off or closed to protect their nests and chicks. Is this conservatio...

Scatter Plot line of best fit data analysis average 7th 8th HS 7.RP.A 8.SP.A HSS.ID.B 7.EE.B 8.EE.C HSA.CED.A

California water measurements - chains, links, and furlongs

Algebra Geometry Science Ratio and Proportion

Help your students understand what they are reading or hearing about the California drought. Terms like acre-feet, chains, and furlongs are often used to describe the volume of the reservo...

Data and Probability 6.RP.3 5.MD 6.G 7.RP 6th 8th 5th MP6 drought acre-feet furlong chains water source

Deflategate

Algebra Number Sense Sports

The deflated ball controversy makes an interesting segue into negative number line understanding. A particular digital psi football gauge reads 0 when the ball is at a proper NFL in...

Data and Probability 7.NS.1 HSA-CED.A.3 6th 7th HS 6.NS.5 6.NS.6 6.NS.7 HSA.CED.A.1 6.EE.5 football inequality absolute value

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

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How Many Pennies did Otha Save?