SamizdatMath

Greetings phrens: this is a 41 page guide to how to think about the basic measures of central tendency in statistics (mean, median, mode and range) beyond the basic recitation of "here's how to do it." If you think about it, statistics is one of the most important and relevant area of mathematics that we teach. It is powerful because it allows us to take large amounts of data and and distilling it down into just a few numbers. However, very often these numbers are either irrelevant, non-repres

From the same place that brought you Fractions: You're Teaching Them Wrong, this is another resource to up your teaching to the highest reaches of the universe.... You're a novice teacher, you're an experienced teacher. You think you've been teaching concepts, but you're not sure. You know why? BECAUSE YOU DON'T KNOW WHAT A CONCEPT IS! This is the definitive 60 page fully detailed explanation that explains everything EVERYTHING you need to know about teaching mathematical concepts. EVERYTHING

Greetings friend & fellow educator, Here we go again: just when you thought you had everything fixed up and all your ducks lined up in a neat little row, I’m back to give you some straight talk about place value, because, as I’m fond of saying, you’re teaching it wrong. Not only are you teaching it wrong, but you probably don’t even understand much of it yourself. Oh, you thought you knew everything, just because you bought a few games and did some random stuff with those silly “foldables” th

Abstract: Zombies are a popular figure in pop culture/entertainment and they are usually portrayed as being brought about through an outbreak or epidemic. Consequently, we model a zombie attack, using biological assumptions based on popular zombie movies. We introduce a basic model for zombie infection, determine equilibria and their stability, and illustrate the outcome with numerical solutions. We then refine the model to introduce a latent period of zombification, whereby humans are infected

This is the most complete guide you will ever own that answers each and every one of the questions you have ever had about teaching subtraction from grades K - 6. I mean, EVERY SINGLE THING YOU EVER WANTED TO KNOW ABOUT TEACHING SUBTRACTION FROM Kindergarten through 6th GRADE. How can this possibly be? Because it's over 75 pages long! This massively documented booklet includes EVERYTHING, including: • Why you should model subtraction beyond "SOAR" * What are the essential properties of subtr

Are you teaching the good old "o of o's" this year? Are you dreading it, because no matter how much "scoot" you play with it, you still don't like teaching it and you don't like your students not understanding it and do you not like re-teaching it? Do you know that there is a different way to teach it so that it is actually fun, interesting and, most of all, relevant? This is 45 pages of detailed information about how you can implement THE MOST AWESOME UNIT ON THE ORDER OF OPERATIONS EVER! I'm

This is a study guide plus 3 quizzes and answer keys for the article that appeared in the "Ideas" section of the New York Times on Sunday, July 18, 2014. "How Tests Make Us Smarter" Note: the original article can be accessed at this Permalink: http://nyti.ms/1rnx6cC This ideal to be used as a form of professional development. It can be conducted in about 1 hour, including the warm-up questions, discussion, "quiz #1" and wrap up. This is an excellent (and very readable) article about the sc

This is a fingering diagram for a 30 button Anglo-Irish Concertina, for single notes as well as major and minor chord combinations. Please note this is for a 30 button concertina; if you have more or fewer buttons these fingering diagrams will not work for you. You should also know this is for a diatonic concertina; if your concertina is not diatonic, these chord charts and fingering diagrams will not be useful. This is also for a concertina tuned in C/G; if your concertina is tuned for differen

We are reflective teachers who embrace the CCSS Standards for Mathematical Practice. We are committed teachers who want to take the magic out of mathematics and focus on the beauty of sense-making. We wish for teachers everywhere to seek coherence and connection rather than offer students memorized procedures and short-cutting tricks. Students are capable of rich conceptual understanding; don't rob them of the opportunity to experience the discovery of new concepts. We acknowledge that this is

UPDATED DECEMBER 8, 2016: Shout out & props to my 6th Grade Student "Leo' for bringing this up! Leo and I were discussing the problem 5 ÷ 1 1/2. As we worked together, we came up with 2 solutions, both of which were correct! Read the new section I added and make sure you show this to your students: it will enhance both their understanding of division AND fractions! AS OF FEBRUARY 10TH, 2014, THIS PRODUCT NOW HAS 58% MORE CONTENT! If you're developing products for TpT or teaching dividing fr