# Posts

### September 01, 2014

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5:16 PM | Pencil Sharpener Giveaway Winner

I hope y'all are having an enjoyable Labor Day Weekend! Today's a very special day. I finally get to announce the winner of the free pencil sharpener giveaway from Classroom Friendly Supplies! I was astounded to learn that there were 643 total entries in the giveaway. Wow! Drum roll, please! The winner is:Chrissy Konyha (@ckonyha)Congrats Chrissy! I hope you and your precious third graders enjoy the new pencil sharpener! Send me an e-mail
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4:01 PM | Technology Flow

At PCMI this summer we were discussing integrating student work into discussions and I realized I don't do this well. I also realized that I have a document camera that I almost never use - last year I used it to project my homework solutions in PreCalc daily and that one time I was being observed. That might be it. So I stopped to think, why? I am not one to use technology for technology's sake, but the document camera is a great tool and it's easier than having students come up to the board […]

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OMG, what am I doing? I guess the first long weekend of the brand new school year has got me feeling inspired! It’s good to be back with my students – many I’ve had for 3 year in a row (minus a few months of maternity leave) for Geometry, Algebra 2 and now Consumer Math […]

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2:09 PM | Second year of Common Core Algebra 1

Our department modified our Algebra 1 curriculum last year for the common core. This will be our second year of this course and we decided to remove the statistics unit. We have decided to offer one Prob and Stats course that covers all of the CCSSM standards rather than address them in little bits over our entire math curriculum. This frees up some time in our Alg 1 class, we would like to use this time to do a better job with the mathematical practices. We will be doing a section on math […]

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Math & Teaching Quotations has continued to be one of the most popular pages on my site, and it’s appropriate to revisit this as school resumes across the U.S. Here’s the direct link to quotes on Mr. L’s Math. A good quote can go a long way towards brightening my day as well as give students [...]

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1:02 PM | Warm Ups

I've seen some conversation about warm ups in other recent blogs, I use Kuta software to generate multiple choice worksheets and use clickers in self paced mode. The students do the worksheets and put in their answers while I'm checking hwk, handing back papers, etc. I do most problems from recent work, but I will be spiraling in problems from older lessons, as inspired by Kathryn's session at TMC14. I review the results of each question (histogram, not individual students) with the students […]

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12:00 PM | 2014 ISN Setup

This year, I have completely changed how my students are doing interactive notebooks. Each student has 4 1-subject notebooks. The first will be used all semester, and the other 3 will be used for each of the 3 grading periods. The notebook for each grading period will be used for homework and notes, and the notebook that will be used all semester has 5 sections for Daily Quizzes, Formulas & Reference, Vocabulary, Review Questions, and Warmups. Here's the 1st 6 weeks Notes ISN
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11:22 AM | Monty Hall Continued

In my recent post describing a Monty Hall activity in my AP Statistics class, I shared an amazingly crystal-clear explanation of how one of my new students conceived of the solution: If your strategy is staying, what’s your chance of winning? … Continue reading →

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9:00 AM | “Just invert and multiply”

Ours is not to reason why; just invert and multiply. – Anonymous Rule number one of Fractions club is: do NOT let the Mathematical Ninja hear you talking like that, otherwise you’re not going to have ears to hear rule number two. I mean – that is a way to divide fractions, and done correctly it works fine. However, it’s not something I often see done correctly. (As an aside: the word ‘just’ is probably the most dangerous word in maths. “Do I just…?” will get my hackles
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Featured book: Math Jokes 4 Mathy Folks Who says math can’t be funny? In Math Jokes 4 Mathy Folks, Patrick Vennebush dispels the myth of the humorless mathematician. His quick wit comes through in this incredible compilation of jokes and … Continue reading →

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One of my favorite mental challenges, as many regular Grey Matters readers know, is the Knight's Tour. The challenge is, using only the chess knight's L-shaped move, to land on each of the 64 squares once.
Mentalist Richard Paddon recently released a download resource titled The Knight's Tour: A Scenic Journey. In this post, I'll take a close look at this new take on a classic feat.
We'll start

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2:26 AM | Factoring like a Pro

Most people think that Factoring is a boring topic. They don’t know the real essence and wide applications of this topic. Factoring is very useful in solving equations, simplifying common core mathematics, and more....
The post Factoring like a Pro appeared first on Techie Math Teacher.

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2:02 AM | Another Reason for Twitter

Hey everyone, I’m getting worse at keeping my blog updated… I’ve been wanting to add something to this for a while because I haven’t liked that the first post people see when they come here starts with ‘Shameless Promotion!’. That’s just tacky. So – in an effort to move that from the top of my front […]

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1:37 AM | Infolinks 2014

Infolinks account verification
The post Infolinks 2014 appeared first on Techie Math Teacher.

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12:23 AM | A Quick Update & Summer PD Links

Well hi!It's been a long summer, but quite a lot has happened in the meantime. Here's a run-down on the personal stuff that's been going on:I spent most of the summer working on creating PD sessions. (Links to follow below)I also worked for my county on a technology team and a curriculum team. Every other spare moment was spent quilting. *Sigh of bliss*My husband and I spent time converting the guest room into a sewing studio.I got a new job (EEEP!) on weekends teaching quilting
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### August 31, 2014

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11:46 PM | Weekly Summary 8/31/14

This is it! Students come back on Wednesday! Lots of thoughts and feelings happening right now. Lets see if I can make a 3-2-1 summary of it. If you would like to join in on the challenge, click here.3 things I found out this week that have me worried:1. Got a call from my father-in-law this week and my mother-in-law is not doing too well. They found "stuff" on her lungs and pancreas, but since it is the holiday weekend they won't be able to do anything until Tuesday. […]

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11:13 PM | #MTBoSChallenge Week 3 Sunday Summary

This past week was our first week of classes! We are an A/B schedule ... I saw each set of students twice. Day 1 was a bit challenging because we had too much to accomplish but on Day 2 there was time for student discussion. I loved the hum of math talk in the room!3 things that happened this past week ...On Day 2 I built in time for partners to discuss graphs, determining domain and range. The hum of discussion, students helping students was exciting. And then we
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11:00 PM | On This Day in Math - September 1

"Life is good for only two things, discovering mathematics and teaching mathematics"Siméon PoissonThe 244th day of the year; 244 is the smallest number (besides 2) that can be written as the sum of 2 squares or the sum of two 5th powers. *What's Special about this numberEVENTS1672 Hooke's diary records " Calculated lengths of Glasses." from Hooke's Journal *Robert Hooke @HookesLondon This was done using Hookes "musical cylinder" or string phone. In July 1664 Hooke produced an experiment […]

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10:42 PM | Pics of my Classroom #mtbos Challenge

I still have a ton of work to do tomorrow before the students come on Tuesday, but here it is so far…

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10:30 PM | Share from Repository (weekly)

Solve this math problem: The gender gap - LA TimesTags: no_tagPosted from Diigo. The rest of Read on the Web -- Repository group favorite links are here.

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8:23 PM | L'uomo che non sapeva dove morire

Due gli aspetti stuzzicanti che mi hanno spinto a leggere L'uomo che non sapeva dove morire dell'argentino Guillermo Saccomanno: l'ambientazione apocalittica descritta nel risvolto della prima di copertina ("In una città devastata dagli attacchi della guerriglia e dalle piogge acide, percorsa da bambini zombi e cani clonati") e il capitolo 38, una paginetta su cui mi si sono posati gli occhi casualmente: A volte, di nascosto, si porta una rivista in bagno. Seduto sulla tazza, legge un articolo
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I know I am going to take some grief for this statement, but I have learned it to be the truth. There are some things that, once discovered, you simply need to memorize — and practice. This is about mental (and often physical) motor skills. Becoming fluent at some things requires more or less practice for different people, but for most of us, it does require something.I come by this knowledge honestly.I have played the piano since I was three or four. In growing as a pianist, there are […]

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5:09 PM | Grafische rekenmachine

"Tijdens de centrale examens wiskunde A, B en C van 2016 dient het geheugen van de grafische rekenmachine te zijn geblokkeerd door een examenstand, dan wel te zijn gewist door een ‘reset’ van de gehele machine."bronMaar wat zou dat zijn? Examenstand? Reset? Fabrieksinstellingen? Alles leeg?Zie Press-To-Test

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3:48 PM | Advanced stats becoming the rage in NHL

Advanced stats becoming the rage in NHL: Dave Isaac:
In many ways, hockey has been considered to be lagging behind the other three so-called “major” sports. The use of advanced metrics is one of those cases since baseball, football and basketball have used them for quite some time.
[source: mme rss]

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3:39 PM | French documentary questions 'new math'

French documentary questions 'new math': Kang Hyun-kyung:
A critically acclaimed French film tackles a popular belief that mathematics is a difficult subject to learn and useless once people pass the test to enter university.
[source: mme rss]

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University of Alberta professor asks people to give new math a chance: Kevin Maimann:
A University of Alberta professor [Lynn McGarvey] says “new math” should get a fair chance when school resumes in the fall.
[source: mme rss]

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3:34 PM | Magic Hexagon

Watch this video about the interesting Magic Hexagon (a relative of the magic square), and why there is only one magic hexagon in the world! Featured book: Speedsolving the Cube: Easy-to-Follow, Step-by-Step Instructions for Many Popular 3-D Puzzles Filed under: … Continue reading →