# Category: Algebra

## Do teams that spend a lot win a lot?

First ask students to look at the table below.  What do you notice?  What does it make you wonder?

I am an avid blog reader.  I find all sorts of new ideas and am refreshed about ideas that I realized in the past.  It always seems great to get a new or different angle on math ed topics.  Here…

## U. S. Open Tennis Tournament

The U.S. Open is about to get underway in New York City.  It is possibly the biggest tennis tournament in the world. We’ve updated our numbers and focused on the prize money.  As students ponder the amounts for various wins,…

## Bits, bytes, and nibbles

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 decided to practice with the numbers…

## Raising the bar

Recovery of the treasure from the 1941 sinking of the S.S. Gairsoppa was recently completed and a huge amount of silver was brought up from the ocean floor.  Let your students get a feel for this adventurous career as they calculate…

## Crop circles

In the travel section of our newspaper this week, Wiltshire, England was a recommended destination to see Stonehendge and crop circles  ………..  crop circles? Many of the crop circles in England appear mysteriously overnight.  They are often huge but appear…

## Methane math

Carbon dioxide and methane are our two most prevalent human-contributed greenhouse gases.  This holstein cow is one of many huge contributors to our methane production.  Let students calculate percentages of greenhouse gas production from cars, cows, and people.  We’ve got…

## My teacher says this stream is parabolic. Is he correct?

Instead of asking students to just believe what you’ve said, why not ask them to verify your assertions?  Students plot the points of the stream, perhaps map them with an equation generated by Excel or their calculator, and then use…

## Souvenirs and concessions

Brian has introduced systems of equations with easy, motivating problems that deal with the cost of stadium purchases for food or souvenirs. These systems of equations puzzles are so intuitive that very little support will be needed

Brian can’t even go to his town’s spring festival without seeing math. Let your class approximate the height or length of this ladder by using the relative size of the cars or the people to approximate the ladder’s length.

## Big gulp

Do you or your students love sugary drinks?  What if it were against the law to order a large sugary drink where you lived?  On September 13th, 2012 the New York City Health Department banned sodas and sweetened drinks larger…

Most of the life cycle of the Magicicada Septendecim is spent underground.  Then at 17 year intervals, these cicadas emerge from the ground, climb deciduous trees, molt into adults, mate, lay eggs, and die. Why does the 17 year interval…

## Patriots’ Day

Patriots’ Day. April 16, 2018. In Massachusetts, April 16th will be a holiday from school and work in Massachusetts. We celebrate Patriots’ Day on the 3rd Monday in April to commemorate the beginning of the Revolutionary War and the battles…

## Albert Pujols … On Pace? 2013

Albert Pujols, entering into his 13th year as a MLB player in 2013 could be on pace to break lots of records!  In 2012 Albert signed a 10-year \$240 million contract with the Los Angeles Angels.  In his first season…

## Lifespan of a meme, the Harlem Shake

Five friends who skateboard and video tape made up a strange dance one afternoon and filmed it on February 2nd.  Now the whole world knows them and their dance … weird.  This is the story of the life of a…