# Carnival of Mathematics IX

So they handed this thing to a school teacher? What did they expect? A lesson, of course. Today we’ll use the alphabet to study math. (Apologies in advance for the irregular capitalization).

**A**lane (Math Notes) **A**ddresses why we teach **A**rithmetic and about how we **A**ll can learn the **A**bcs. (elementary mathematics education)

RandomHacks **B**roaches **B**acktracking. (computing)

Michi will be **C**onsidering **C**ohomology in the **C**aucasus. (and **C**omplains about **C**onnectivity) (travel/conference)

Involutions attempts to **C**lassify **C**oncepts by search engine page **C**ounts. (statistics)

**D**y/**D**an continues his **D**iscussion of assessment with part **D**eux. (secondary mathematics education)

**E** of **E**‘s Ponderings **E**xpresses some thoughts about her **E**xperiences at a math and math **E**d conference. (math wars/conference)

SharpBrains **F**orces the reader to use their **F**rontal lobe with the **F**ork in the road. (recreational mathematics)

John, the Unapologetic Mathematician, **G**oes to a **G**rown-up math competition (ARML) and **G**ives a solution to a power question.

**H**al **H**untsman has written about **H**ow community colleges teach algebra. (post secondary mathematics education)

Brent of Math Less Traveled **I**nstructs us in a most beautiful **I**dentity (in **i**) and then uses it to **I**nform simpler **I**dentities in Trig. (trigonometry)

**J**D2718 (your host) **J**ogs kids’ memories by forcing them to **J**oin prior knowledge with . (secondary mathematics education)

MadKane **L**aughs with a **L**ecture error **L**imerick. (humor)

Dave **M**arain **M**entions **M**ortgages, and **M**ore **M**ortgages, deeper **M**eaning from an sat algebra problem, and **M**ore problems. (secondary mathematics education)

**M**ath and Logic Play takes a look at the **M**onte Hall Problem. (recreational mathematics)

Dan at the Exponential Curve gets a **N**egative response about **N**ational Board Certification (also check out his recent series of puzzles). (secondary education)

Julie of Math Trek **O**ffers an explanation of the recent **O**rigami Trisection of an Angle. (geometry)

Grey Matters **P**roposes and discusses several variations and the **P**sychology of the **P**risoner’s Dilemma. (logic puzzle)

Denise of let’s **P**lay math **P**osts on **P**roblem solving. (mathematics education)

Hamid **P**romoted a **π** **P**late. (merchandise; humor)

**R**od of Perfectly **R**easonable Deviations **R**eports on a bidding scheme which is not **R**ational. (recreational mathematics)

The Crazy Math Lady **R**ants that her students cannot manipulate **R**ational expressions in their heads (and therefore must show work). (primary/secondary mathematics education)

Mark of Good Math/Bad Math **S**eeks to **S**eriously **S**hare **S**ome introductory ideas about **S**et Theory (definitions), **S**et theory (the need to axioimatize), **S**et theory (axioms). (set theory – now that’s a useless label. While I’m breaking voice, this guy writes to me. Not private e-mails, just his blog posts, but I am a high school math teacher who’s dabbled here and there, and forgotten as much college level stuff as I’ve ever learned, and MarkCC explains fundamental concepts at exactly the level where I can understand everything, but didn’t necessarily before reading it)

Linda of **T**eens and **T**weens sends her kids to public school, and supplements with math **T**eaching at home, but her **T**ext choice has recently changed. (enriching elementary mathematics education)

Measure **T**heory **T**alks about the **T**rials and **T**ribulations of **T**utoring **T**wo calculus students. (post secondary mathematics education)

mrc from **U**nderstanding has an **U**nusual scheduling question. (algorithm)

Text Savvy **W**rites on the **W**ason Selection Task, and again here. (elementary logic)

**X**KCD’s latest: The Power of One. (humor)

Out of the archives: Ms. fri**ZZ**le (stretching to use those **Z**‘s) bemoans her middle school students’ difficulties with mathematics, a – Z, and again. (primary/secondary mathematics education)

**3**. **Three** Standard Deviations to the Left does the math for his school’s suspension rate, and makes his students try their estimates as well. (secondary mathematics education)

– – — — —– ——– ————- ——– —– — — – –

Apologies to K, Q, V, Y, 1, 2, and all the other numbers.

The next carnival opens in 13 days at Dave Marain’s Math Notations. Submit via the submissions tool.

Thanks to all for your current submissions.

And a final thanks to Alon Levy, blogger emeritus, for setting all of this up.

### Trackbacks

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Looking at that CSS link, it seems to be very promiscuous in posting itself elsewhere and not very theme-bound for mathematics.

The fundamentals of life are found in numbers and absolute zero :)

Steve

http://www.bloust.com

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You are so cool!I do not suppose I’ve truly read through something like that

before. So nice to find another person with a few unique thoughts on this

issue. Seriously.. many thanks for starting this up. This website is one thing that’s needed on the web, someone

with some originality!