# Mathematics

### Math puzzle: Filling a bath tub with increasingly smaller containers

We are trying to fill a bath tub! How long does it take if we make our containers smaller and smaller following a certain pattern? Finding an upper …

Bathtubs### Building our Students’ Mathematical Intuition

I’ve been asked to share my OAME 2017 presentation on Mathematical Intuitions by a few of my participants. Instead of just sharing the slides, I …

### Plotting Two-dimensional Differential Equations - Maple Programming Help

Some of the options available to DEplot are summarized in the subsections that follow.<p>color<p>Color handling is allowed for the plotting of arrows in …

Grammar### Bucks and NBA Math Hoops Partner To Develop Math Skills of Wisconsin Youth

Over the past academic school year, the Milwaukee Bucks have partnered with NBA Math Hoops, a product of Learn Fresh Education Co., to bring a …

Mathematics Education### Here's a complex ACT geometry question that stops students in their tracks — see if you can solve it

Remember those standardized test questions that always used to stump you?<p>Well, they still exist.<p>And they're still hard to solve, even if you're an adult now and have successfully taken the SAT and/or ACT once or even a few times.<p>We spoke with Tom Rose, the co-founder of Testive, which offers SAT …

### Here's how you can use math to find your soul mate — and why we're so resistant to that idea

Eric Barker is the author of "Barking Up The Wrong Tree." In this video, Barker explains how you can find your soul mate using math. The following is a transcript of the video.<p><i>In terms of finding your soul mate, there's actually an algorithm developed by mathematicians that can be used to help you</i> …

Relationships### The Mathematics of Juggling

The late computer scientist Claude Shannon has a well-deserved reputation as the father of information theory, but he was also an avid unicyclist, …

### Solution to Riddle of the Week #28: The Bicycle Killer

Difficulty level: Moderate<p>To solve this riddle you must find the key piece of information. There are 53 bicycles in the room. Does that number remind you of anything? See the original question here.<p>Solution<p>A group of people were having a poker game, and one of the players was cheating with an extra …

### The Sierpinski Triangle: Visualising infinity in R

(This article was first published on <b>The Devil is in the Data</b>, and kindly contributed to R-bloggers)<p>Wacław Sierpiński was a mathematical genius who …

Data Science### How the Mighty Have Grown

<i>“We hope that, when the insects take over the world, they will remember with gratitude how we took them along on all our picnics.” – Bill Vaughan</i><p>All …

Intel Corporation### Trump Budget Based on $2 Trillion Math Error [Updated]

One of the ways Donald Trump’s budget claims to balance the budget over a decade, without cutting defense or retirement spending, is to assume a $2 …

Taxes### The Calculus Collection: A Resource for AP and Beyond

<b>Caren L. Diefenderfer & Roger B. Nelsen, Editors</b><p><i>The Calculus Collection</i> is a useful resource for everyone who teaches calculus, in high school or in …

Mathematics Education### Counting exactly the number of distinct elements: sorted arrays vs. hash sets?

Suppose that you have ever larger sets of 64-bit integers, and you want to quickly find out how many distinct integers there are. So given {10, 12, …

Programming### mathematical limit for a ouroboros torus

The other day i was watching an episode of Tom and Jerry in which a similar situation was present toms head comes out of his own mouth. My head hurts …

### What Does Compactness Really Mean?

I don’t think I’ve spent more time with a mathematical definition than I did with compactness. It is an important mathematical property and one that …

### This math whiz is getting a master’s in the subject — before graduating high school

Full screen<p>1/3 SLIDES © Family photo/courtesy of Stephanie Mui<p>2/3 SLIDES © Family photo/courtesy of Stephanie Mui<p>3/3 SLIDES © Family photo/courtesy …

Mathematics Education### How Applied Mathematics Could Improve the Democratic Process

A low-tech solution to America’s voting problems<p>American voting relies heavily on technology. Voting machines and ballot counters have sped up the formerly tedious process of counting votes. Yet long-standing research shows that these technologies are susceptible to errors and manipulation that …

Sociology### Math Fun with Riddle Task Cards

Hello, Teaching Friends!<br>Do your students love solving riddles? Then they're sure to have fun with this set of number elimination riddle cards! In …

### Oops! Uber Owes Drivers $45 Million in Back Pay After Math Mistake

A company that employs scores of math geniuses apparently can't figure out how to calculate commission.<p>On Tuesday, Uber told the <i>Wall Street Journal</i> that the company has been underpaying its New York City drivers for two years. Oops!<p>Uber intends to issue back pay of roughly $900 per driver, which …

Uber### Guest Post: Math Night at Curtis High School

« Learning Can't and Shouldn't Be Quantified | Main<p>Guest post by Sam Williams<p>It's 6:30 p.m. and the fresh sting of PVC cement on an exposed finger …

Mathematics Education### Emmy Noether's Mathematics as Hotel Decor

Albert Einstein’s Theory of Relativity was published in 1915, forever changing the way that we understand the relationship between space and time. As …

Women in Science### First Ride – Canyon Lux CF 9.9 Pro Team

There had been endless rumors the last couple years that Canyon Bikes would be selling its bikes in North America, and this winter the news became …

Mountains### Can you solve it? The maths problem for 5-year-olds 'stumping' the web

The truth about the latest viral maths problem from Singapore - and another historic Oriental numbers puzzle<p>UPDATE: To read the solutions click here.<p>Happy birthday Monday Puzzle!<p>It is now exactly two years since the birth of this column, which I started as a consequence of a Singapore maths problem …

Education### Here's the Viral Math Question That's Stumping Both First Graders—and Their Parents

See if you can solve this challenging problem.<p>A child’s math problem is dividing people on the Internet as they struggle to answer what should be an …

Mathematics Education### The importance of understanding what’s being asked

<i>“My dad heard this story on the radio. At Duke University, two students had received A’s in chemistry all semester. But on the night before the final</i> …

Teaching### 1 + 1 = You’re a Racist

Piper Harron is an unhappy-looking black woman whose mood would be greatly improved if white male math professors would just ’fess up to their …

Mathematics Education### Mathematical Representations as Products of Thinking

I have worked with a lot of teachers who tell stories of being pushed toward one single correct way of representing their math work by their …

in order to### Weapons Of Math Instruction - The Power Of The Protractor

Weapons of Math Instruction by Cafe Pretzel<p>Many people believe using weapons of mass destruction are the most powerful and effective way to get …

Cool Stuff### Online maths and English practice.

Counting objects, inside and outside, longer and shorter, letter names, rhyming words and more.<p>Comparing numbers, names of shapes, consonant and …

### How to Help Your Kids Get Excited About Math

Americans are lacking in confidence when it comes to math. Restaurants now print the suggested tip on receipts because so many customers struggle to …

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