Tag: 6.RP.A

Wow, everything must be free!

What happens when you take 50% off again after taking 50% off at first? Students examine this retailer trick of giving double discounts.  What happens to the price when you are given a double discount?  Could everything be free?

How much water should you be drinking?

As outdoor activities get into full swing and the temperatures rise, it might be a good time to look at hydration. A healthy requirement for fluids can’t really be the same for everyone.  Surely the amount of water that you…

Value of a lifetime of Whoppers?

Locked in a smelly bathroom for one hour and then promised a lifetime of Whopper meals, an Oregon man sued BK when the manager’s promise was withdrawn. How much money should he ask for in his suit? The activity: BurgerKingBathroomLawsuit.pdf

New Horizons spacecraft just flew by a really distant asteroid

On January 1st, 2019, the New Horizons spacecraft passed close to Ultima Thule, a Kuiper Belt object that’s a billion miles beyond Pluto. That milestone marked the most distant celestial object that we have ever been able to see close-up.  In this activity student do some rate conversions to try to understand the delay in knowing that the mission was a success.

Weird wing prices

Clicking on this image will show it larger in a new window. Danny’s Wok in Philadelphia has a huge price list for ordering their famous chicken wings. Why did they write the prices this way? Do you see a pattern?…

Debt and deficit

The growing deficits of our government and accumulated debt are constantly in the news. Allow your students to investigate these concepts and their causes with this timely activity. The activity involves reading charts, making comparisons, computing percents and analyzing trends…

How huge could this mid-term election be?

Will November 6th election bring record number of voters to the polls? Students get a chance to understand what the usual percentage of voters is, look for trends and central tendencies, and make predictions about this year’s voter turnout. The…

Monarchs are flying south again

In mid-August and early September, the Monarch butterflies begin their annual migration south to more moderate climates to hibernate and overwinter.  It is an incredibly long migration and fascinating to observe.  But, the populations data on Monarchs has seriously changed…

How much pee is in that pool?

After chlorination, it has been hard to measure the quantity of pollutants in pool water.  A Canadian chemist, Xing-Fang Li, has found a marker for urine that chlorine doesn’t disguise. In this activity, students calculate volume of several pools, change that…

How fast can you run?

In preparation for the Boston Marathon, we thought that an analysis of running speeds might be appropriate.Have you heard of The Six Million Dollar Man?  He was the character in a science fiction show about an astronaut that was rebuilt,…