If 30% love math, and 30% are neutral about math, then the 40% that hate it could be the largest group, hence the majority. If so, then the headline might actually be brilliant. EDIT: Or not. A “majority” means “more than half.” The word I was thinking of is “plurality.” For the record, editors often write their own headlines to fit the available space, or to generate more traffic. Here’s…
Jerz > Writing > Technical Writing Tips
My math education predated the widespread use of graphing calculators. I remember writing my own BASIC programs to graph simple functions, but that was in a summer school programming class during middle school, not part of my high school curriculum. I’m amazed these old calculators cost this much. Bulky and black, with large, colorful push buttons and a low-resolution screen, TI graphing calculators resemble top-of-the-line design from the 1990s and…
A pleasantly detailed analysis of how the various editions of Tetris chose what piece was next. In 1985, Alexey Pajitnov and Vadim Gerasimov released Tetris to the public. This fun and highly addictive game challenged players to fit pieces together that were dealt in a random order. Since then, over 150 licensed versions of Tetris games have been released. Varying in game modes, rules, and implementations, they all play slightly—or very—differently. In…
My wife says she bought the pies intending to use them for a math lesson, but she just ended up letting the kids start eating them.
Every Friday since Columbine, one schoolteacher has asked her students to to submit a list. Who would they like to sit next to next week? Who has been an exceptional classroom citizen this week? Chase’s teacher is not looking for a new seating chart or “exceptional citizens.” Chase’s teacher is looking for lonely children. She’s looking for children who are struggling to connect with other children. She’s identifying the little…
Numerical errors usually occur for one of these five reasons: A journalist mishears a correct number given to them by a source and fails to double-check it. A source unwittingly provides a mistaken piece of information and the journalist fails to verify it. A source deliberately fudges the numbers and the journalist fails to verify them. A journalist or editor miscalculates a figure. A journalist re-reports a mistake made by…
(Lights up on a college journalism classroom. The professor enters, surveys the room.) Professor: Math! Students: (Shocked reaction.) Professor: Math!! Students: (Scattered cries of “No!”) Professor: MATH!!! Students: NO!!! (Blackout.) (40 minutes later.) Professor: So, at the very least when you encounter numbers in your reporting, contact sources who can help you interpret those numbers critically. Seek out a variety of credible views on the provenance and…
Over the Christmas break, I’ve been churning through Khan Academy math drills, so that I can be a more effective homeschool parent. It’s actually kind of fun watching my score go up, and earning badges. In the way that birds who are trained to peck buttons for food think it’s fun to peck their little beaks bloody. As a grad student ploughing through Kant and Derrida, I found it an intellectual relief to run a computer program through…
Data visualization is one of the most important tools we have to analyze data. But it’s just as easy to mislead as it is to educate using charts and graphs. In this article we’ll take a look at 3 of the most common ways in which visualizations can be misleading. —Heap Data Blog.
Upon reading that recent message from my inbox, I wanted to shout out “let your child fail.” The shouting was not due to frustration, rather to be sure that my voice was heard by many. And when I say fail, I mean fall. Let them fall. How can we learn to get back up if we never fall? Or if someone else always picks us up. Too often today, students…
I am working on some conference papers that touch on coding as a liberal art. While reviewing classics, like Stephenson’s In the Beginning Was the Command Line and Knuth’s approach to “Literate Programming,” From the insightful and quirky “A Mathematician’s Lament,” by Paul Lockhart. A musician wakes from a terrible nightmare. In his dream he finds himself in a society where music education has been made mandatory. “We are helping…
Fascinating. Barsalou then goes all math geek and applies to the data the Bayes’ Theorem formula for calculating conditional probabilities. After a little mathematical shake and bake, he determines there is a 61.9 percent chance that any given casualty is wearing a red shirt. That still sounds high, but it’s not really once you consider the sheer number of redshirts running around the Starship. “Although Enterprise crew members in redshirts…
Hold on… An on-again, off-again move by the Obama administration to scrap the federal gas tax in favor of a pay-per-mile fee would boost the tab to Americans as high as 250 percent, raising their current tax of 18.4 cents a gallon to as high as 46 cents, according to a new government study. —New pay-per-mile scheme would boost taxes 250 percent | WashingtonExaminer.com The math example doesn’t illustrate the…
A humanities faculty member and a math faculty member collaborate on a course about the meaning of math. “Don’t worry;” I told them. “You can’t find this more frightening than I do.” And it was true. Ever since the word problems my father forced on us at dinner, I’ve always been terrified of math. I probably skipped dessert for all of fourth grade in order to escape some design to…
Sal Khan has done something remarkable in creating such a vast and varied library, and he deserves to be recognized. His commitment to making the site free is a rare and selfless act, and he deserves to be praised. Sal Khan is a good guy with a good mission. What he’s not, though, is a good teacher. Unfortunately, the media hype surrounding Khan Academy has created a level of expectation…
Why don’t states require students to take four years of English and math, and three or four years of science? Why isn’t there a class dedicated to teaching the fundamentals of writing? For that matter, why don’t we require more than two years of history or social studies and foreign language? The students want it—69 percent of respondents say high school graduation requirements are “very” or “pretty” easy, while 37…
A certificate of debt, found in a regional archive, attests that Mittenwalde lent Berlin 400 guilders on May 28 1562, to be repaid with six percent interest per year. According to Radio Berlin Brandenburg (RBB), the debt would amount to 11,200 guilders today, which is roughly equivalent to 112 million euros ($136.79 million). —Reuters.com. But hold on — 2012 -1562 imeans the debt is 450 years old, not 540.
Interesting application of math to sports. In analyzing teams’ shot quality, shot rates and shot percentages, Skinner found that the average NBA squad has a 4 percent probability of shooting the ball when left with 15 seconds on the shot clock in their final possession. The ideal rate is 12 percent. Skinner didn’t offer guidelines for exactly when a team should shoot. So many variables exist, particularly the subjective nature…