# Tag: 4.OA

## USPS needs help!

Students learn how the Postal Service is funded and try to decide how the USPS could earn more or spend less in their operation.  They finally get to think about whether the post office should be a government run service or a self-sustaining business.

## Ramen noodle heist

In 2018, the trailer of a truck filled with Ramen noodles was stolen from a parking lot in Georgia. The trailer contents were valued at \$98,000. What do you wonder about this? Is this even possible?

Could \$98,000 worth of Ramen even fit in a tractor trailer?

## Do you want to be an NBA virtual fan?

For health concerns, professional sports now have no actual live fans. To help generate the excitement and semblance of fans, some teams use cardboard cutouts of people.  Some use Zoom screens of fans.  The NBA creates virtual fans. Actual viewers…

## Weird and spooky puzzles for April Fool’s Day

This day is known for pranks and puzzles.   Try one of these 4 activities on April Fools Day. Ask students to analyze where I made my mistake        PerplexingProblem.pdf For members we have solutions. PerplexingProblem-solution.pdf      …

## Pascal coloring and modular math

Clock math, 1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7… is modular math. Let your students learn about the usefulness of modular math as they color and explore Pascal’s Triangle. Very pretty math!

## 02022020

What do you wonder?  Why is this string of digits special?  What will be the next number like this one?

## Want to earn \$150,000? – Mersenne prime search

What’s a Mersenne prime?        How hard could it be to find the next one? Why are there only 50 known Mersenne primes?     What’s with \$150,000? The activity:  NewMersennePrime.pdf

## Which is the best deal?

How do you calculate and justify which deal is a better savings?  By dollars saved?  By percent saved? By some other measure? The activity: WhichDealOffersMostValue.pdf CCSS: 4.OA, 4.NBT, 4.MD.A, 5.NBT, 6.RP, 6.EE, 7.RP, 7.EE.A

## Humongous vegetables of Alaska

This summer I visited Alaska and truly enjoyed the majesty of the Alaskan scenerey and the many accomplished people that I met. At the time that I was there, the newspaper’s front page was filled with pictures of huge vegetables…