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Inflation and the cost of gasoline
Inflation and the cost of gasoline

In 1980, one gallon of gasoline costs $1.22. Today's prices are a lot higher. Is that because the price has gone up or because in 1980 you could...

Algebra Number Sense Grades 4–6
How much caffeine are you consuming?
How much caffeine are you consuming?

Did you know that there is an amount of caffeine that is too much for the growing brain of a teenager? We did some research and have asked...

Algebra Number Sense Grades 5–HS
How many gumballs are there?
How many gumballs are there?

Gumball Machine Problem from Brian Marks on Vimeo This problem is a little puzzle to get your students thinking, estimating, and calculating. We've given you a pdf file...

Number Sense Geometry Grades 5–HS
What is Artemis 1 and when will it launch?
What is Artemis 1 and when will it launch?

Credit: (NASA/Joel Kowsky) 50 years ago we landed on the moon. We've established a space station and flown astronauts and guests to live there. Private industries have created...

Number Sense Geometry Grades 4–HS
Mallie's latest Big Burger
Mallie's latest Big Burger

It's time to treat your students to ratios, proportions, fractions and BIG BURGERS! In this activity students explore the ratio of the various ingredients in the world's largest...

Algebra Number Sense Grades 4–6
What time should I wake up?
What time should I wake up?

I'm going to surprise my mom with breakfast in bed for Mother's Day. She wakes up pretty early. When do I have to wake up to pull this...

Number Sense Math and Food Grades 2–5
Banana Art
Banana Art "Comedian"

What do you think this activity might be about? What do you wonder? How much would you pay for this piece of art? How much profit is involved...

Algebra Number Sense Grades 5–HS
How big of a crepe can you make?
How big of a crepe can you make?

At Costco you can buy this huge tub of n utella . It contains nearly 7 pounds of chocolaty-hazelnut spread. We use n utella to make banana/n utella...

Algebra Number Sense Grades 4–7
Refugees from Ukraine
Refugees from Ukraine

We are hearing a lot about the war in Ukraine. Civilian Ukrainians are fleeing the war zone in order to remain safe and find food and housing. How...

Number Sense Math and Social Studies Grades 5–HS
Shrinkflation
Shrinkflation

Shrinkflation! What do you think this word means? Inflation in the cost of living (2021) was estimated to be about a 7% rise. If "shrinkflation" is happening at...

Algebra Number Sense Grades 5–7
Shopping season already!
Shopping season already!

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...

Number Sense Math and Social Studies Grades 4–7
Spicy hot chocolate for the Dia de los Muertos
Spicy hot chocolate for the Dia de los Muertos

The Day of the Dead is always on the first and second of November. Life and death are part of the natural cycle of life and the Dia...

Algebra Number Sense