yofx

Money For Being Mathy

Hendree — Mon, 30 Aug 2010 09:00:18 +0000

Yahoo is unbelievable at targeting distracting articles your way. Every time I’m on their homepage. It requires herculean effort not to click on the latest celeb scandal/news of the weird. Here’s an article that got me: Jobs for Math Lovers that pay $50K + up. I noticed math teacher wasn’t on there…time to get paid more. Also it was interesting that engineers didn’t make it. They definitely made this list of majors that I’d posted previously.

pic by Thalia Twilight Photography

The Science of Apology

Hendree — Mon, 23 Aug 2010 09:00:57 +0000

I was going to offer each one of my RSS subscribers $5 for enduring my posting sloth over the summer (and last spring), but I found this article in Science Daily about research that indicates all you really want to hear is “I’m sorry.” So there you go, I’m sorry!!!! I’m going to try to stick to a weekly posting regimen this fall. Part of the problem last spring is that my life has become too crazy for the daily post. Wish me luck!

pic by Mike Hulsebus

Mr. Boggs Steps Out

Hendree — Mon, 19 Apr 2010 15:06:32 +0000

Lee came up with a great find on Archive.org. Mr. Boggs Steps Out is a tale of love, adventure, and……statistical rectitude? Best of all it’s free. Follow the link to Lee’s page.

Easy as Pi

Hendree — Tue, 13 Apr 2010 00:49:45 +0000

I was out shopping with the fam this weekend. Not only did I find a new belt, but look pi grill work on this set of table and chairs.

Teaching Problem

Hendree — Tue, 06 Apr 2010 13:58:15 +0000

I use MyMathLab to run my classes and I have all this great info on each assignment called an “Item Analysis”. Below is an item analysis for a sample exam in one of my algebra classes. Here’s my question, which are the most urgent problems to cover when I go to give my class the review? I’m not looking for an intuitive listing of the top problems, but a spreadsheet function that I can use to sort the problems. Note, something that makes this problem harder is that the questions aren’t given with the same frequency. (Hint: the most obvious is calculating the percent of time a question is gotten correct, but there are certain problems with that.)

Binary Heads

Hendree — Tue, 30 Mar 2010 00:15:15 +0000

I found this in Kids Discover while hanging out with my daughter in the childrens section of our library. Pretty cool example of a visual binary operation.

ps. Thanks Brian and Lee for getting me off my butt and posting.

Math + tats

Hendree — Fri, 26 Feb 2010 01:35:47 +0000

As pi day approaches, show everyone you’re a hardcore geek with a pi day tat from Academic Tattoos.

Grading…

Hendree — Tue, 23 Feb 2010 18:26:20 +0000

Lee emailed me regarding my throwing the papers down the stairs experiment.

Hi Hendree -
I know of several methods for grading papers. One I’m sure you’ve heard of is to throw all papers down the stairs and whichever fall farthest get the higher grades. Another is illustrated by the graphic at http://primepuzzle.com/tc/grade.html

Thanks, Lee!

Free HS math tutorials

Hendree — Tue, 23 Feb 2010 00:24:53 +0000

Check out this batch of free online math tutorials from Brightstorm.

Math + War

Hendree — Tue, 16 Feb 2010 10:59:16 +0000

Just happened to run into this on a data mining blog. A very provocative use of mathematics to understand Iraq and it’s connection to other world conflicts.