Math in Hospitals

Anemia is the most common disorder of the blood. People with anemia often don’t realize they have the disease until the symptoms are serious and dangerous, but a collaboration between a physician-researcher and a mathematician may disrupt this pattern.

Read more about the mathematical analysis that can predict who will become anemic almost 3 months before anyone usually starts noticing symptoms.



TenMarks has launched a math practice and learning program for grades 3 – High School and as of today, it’s FREE for teachers to use in class or for their students to use at home.

The TenMarks approach gives students a variety of problems on each topic, and ability to use hints if they need a little nudge, and immediate video lessons for them to refresh and learn the topic – on the spot. The end result – students refresh what they know and learn what they don’t.

Teachers choose their own curriculum (mapped to state standards), assign work to students, have it automatically graded immediately, review individual and class performance, and most importantly, take immediate action. TenMarks is super effective and real easy to use – it was designed with the help of math teachers across the country. What’s more – it’s FREE for the entire class!

Check it out at

Something to Scream About

A ride built on Coney Island in 1895 took roller coasters to a whole new level; its twists and turns were so extreme that they knocked riders out.  Literally.

The Flip-Flap Railway, as it was called, reached 12 times the force of gravity at the bottom of its loops, enough to make most people pass out. Engineers ripped apart the roller-coaster design and found the root of the problem: a neglected math principle.  Read more about the equation roller-coaster designers now use to make sure amusement park goers remain conscious.

Dr. Black Has Been Murdered

Detective Jill must determine the murderer, crime scene, and weapon. There are six possible murderers, 10 locations, and six weapons. Detective Jill tries to guess the correct combination then asks her assistant, Jack, to confirm or refute each theory.  

"Detective Jill" is each of 315 teen computer prodigies, "Jack" is a computer program that each competitor must write on the spot, and this word problem was the first challenge at the International Olympiad in Informatics. 

At IOI, high-school-age students solve problems that baffle graduate students, sometimes inventing algorithms in a matter of minutes.  Dozens of countries from Kazakhstan to Venezuela are represented, and each team member has beaten thousands of countrymen to make their country’s team.  At the "Math Olympics, " even the losers are brilliant.  What teen genius will come out on top this year?  Follow the competition here.

Caves and Equations

Mammoth Cave in Kentucky is the largest cave in the world, with more than 390 miles of passageway and new discoveries adding several miles to this total each year.

Spelunkers compete to explore it, early 1900s farmers competed to sell it, and now the best minds in math and physics compete to explain it.  For centuries, researchers have understood the basics: caves form when water trickles through tiny rock fractures. But the question has still remained: how does a small flow of water erode rock fast enough to make 300-mile tunnels? Now, an answer emerges from a series of math equations. This discovery has applications in everything from the safety of dams to the fate of nuclear waste. Read the full article here.