math

Over the last summer I completely rethought my Algebra 2 course. Part of this is my focus on parent functions through the first part of the year, giving students a solid understanding of each function and their transformations. To help focus on the fundamental properties of each function, we used…

I've decided to make functions the key focus of the first few units of Algebra 2 this year. I mentioned this in my post about my SBG skill lists: This year, the start of the [Algebra 2] course is going to focus on functions, transformations and inverses. For quadratics that…

This is the second skill for Algebra 2, which is pretty much what it says in the title. At this point, we're almost ready to start talking about functions, but I wanted to "review" a few things about solving equations first. Which brings us to these pages. Except, lets just…

Our very first skill in Algebra 2 this year was this: IN1: I can simplify radical expressions. Even though it isn't particularly related to the rest of the first unit (it's called "Introductory Algebra Skills", but it's really functions and transformations, focusing on linear and absolute value functions), there are…

This last week saw my Geometry classes finish off our introductory Reasoning and Logic unit, which means we're ready to go with setting up the basic building blocks of geometry: the Undefined Terms. I took similar notes last year, but they were constrained to a table on half a letter…

Let's cut to the chase. Here are my units with SBG skills (and alignment to the Oklahoma Academic Standards) for both Geometry and Algebra 2: geometry units.pdf algebra 2 units.pdf Last year was my first year teaching under the American system, with brand new standards as well. There…

There's a new version now, with more functions! https://blog.primefactorisation.com/2017/08/06/algebra-graph-sketcher/ Yesterday was the last day of our school year, so it's finally time to relax! And by relax, I mean write code. I was thinking about the tasks I want to set for next…

I invented a new game for factoring quadratic trinomials over the summer break. After waiting to get to quadratics, I'm excited that this week I was finally able to play it with my Algebra 2 classes. As I was planning, I was thinking about how to motivate teaching factoring. In…

I'm teaching again! There's so much that I can share about the start of my new job, but for now I just really want to blog about lesson ideas. So let's do that. In Geometry we're going through our introductory review unit. I wanted to see what my students' algebraic…

Next up in the back-to-school posterpalooza, it's the order of operations. I've heard different people have different opinions between GEMA and GEMDAS. I like the idea of arranging the letters like this as a compromise between the two. It emphasizes that multiplication/division and addition/subtraction occur in pairs, at…

Okay, before I go any further, I feel I should clarify: I have not just been working on posters for the last week, despite them completely taking over my blog. I have been working on lesson ideas, too. I just want actually try them out in class, so I can…

I'm a Geometry teacher who doesn't know how to measure anything. Okay, I can measure stuff. But, like most of the world except the nation I now live in, I learned* to measure everything in metric. Mostly. I grew up on a farm, so I'm very used to measuring area…

New posters today for Algebra 2: Parent Functions! I actually put these up a couple of weeks ago, but unfortunately didn't have any photos of them. Then the floors of the school hallways got waxed and we weren't allowed in. Until today! Here's them next to my Geometry Symbols Posters.…

Firstly, my recent exciting news that I don't think I've blogged about yet: I have a job at the same school as my wife! :D I have my own classroom! This was in doubt for a while, as it seemed I might need to be a roaming teacher (which didn't…

Another coding project to share today: an online interactive for demonstrating the areas under a curve for a Riemann sum. I started work on this a couple of months ago, then forgot about it. I'm probably not teaching Calculus in the near future, so I lost some of my enthusiasm…

Following on from planning units for Geometry, I've created SGB score sheets for students that also act as dividers between units for their notebooks. If this idea seems familiar, that's because I've totally stolen it from my wife. I feel like that's justified, though, because she's already asked me to…

First, the good news. I have a teaching job lined up for this August! While I can't go into details about it quite yet (partly because I'm not sure of some of the details myself), I'm pretty certain I'll be teaching Geometry some of the time. Having to start planning…

### author

Shaun used to be maths, IT and ocassional physics teacher at a small P-12 school (primary and secondary) in rural Victoria, Australia. He is currently in the process of starting his career again in the United States.

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### my website

The place where I put other stuff, usually math related coding:

primefactorisation.com

### my other blog

My journey from Australia to the United States:

Dropping the S

### my wife's blog

Sarah is also a math teacher, and she's much better at this blogging thing than I am:

Math Equals Love