maths

Classroom Rules Posters

This tweet basically summarizes what the last week has been like in our house: Rest assured, all. Laminating continues because we found an unopened box of 100 pouches. @reilly1041 @theshauncarter @druinok @misscalcul8— Sarah Carter (@mathequalslove) July 31, 2016 The latest contribution for my walls are my classroom rules: These…

Algebra 2 Units and Skills

New standards means new plans. Except I've only just moved to Oklahoma, so I'm teaching Algebra 2 for the first time anyway. Good timing, I guess? Anyway, I'll be using SBG this year. Here you'll find my complete list of units, containing the relevant OK math standards and 'Critical Gaps',…

Planning Geometry Notes

I'll be teaching Geometry for the first time this year. Actually, everything is for the first time this year, as I've never taught discrete high school math subjects before*. It feels like I'm starting from scratch with my planning. I've already posted my list of Geometry units and skills, mapped…

Making a box

Problem I gave to Year 9 a few weeks back: Imagine taking an A4 sheet of paper, and cutting the corners out so it folds into a box. What is the maximum volume possible? Or how I actually presented the problem: I'm sure that any non-metric types could easily adapt…

Managing different student learning

I've been left in an interesting situation with my Year 10 class. This is their last semester before moving into VCE or VCAL, where they get to choose their own subjects. This means that they'll be studying a variety of maths subjects, at different levels of difficulty. Not to mention…

Student Feedback (Year 7)

Continuing on from my last post, here is the feedback I got from Year 7. Like last time, I used Start, Stop, Keep and Change, and I'll go through responses for each question, adding my own reflections as I go. I'll be honest, a lot of this feedback wasn't particularly…

3D Perspective Drawing

Today's lesson with Year 7 looked at front, side and top perspective drawings of 3D shapes. The moment of inspiration hit me when I woke up this morning (which is an improvement over the more common 10 minutes before the lesson starts), but I decided I wanted students to create…

Rotations around a point

In introducing rotations to my Year 7 class, I had them create a... thing. "Foldable" isn't really the word I'm looking for here. I think it's better described as a "spinable". Anyway, it looks like this... ...and this. The main idea is that students aren't just told what a rotation…

Football scores problem solution

The other day I posted this problem that one of my students discovered. We played around with it for a while and came up with this solution. I don't know if this is the easiest or most elegant solution, but it's what I have. Quick recap, we're trying to solve…

Football scores problem

As a maths teacher, one of my aims is to get students to think about the world mathematically. So there aren't many things more exciting than having a student come to me with a problem they noticed and are trying to solve themselves. Just for the fun of it. This…

Un-building equations

The other day I wrote a post about having students build their own equations. I decided to use this idea as a starting point for solving equations by backtracking. The class has already solved equations in a number of ways, and even used flow charts to solve them with backtracking.…

Building equations

Year 7 are currently working on solving equations with pronumerals for the first time. Specifically, we're using backtracking to solve multi-step linear equations. This year, I realised there's a problem with getting students to understand backtracking. Before I can expect students to work backwards through steps to solve an equation,…

Solving Linear Inequalities

Semester 2 has started, which means the Computer Science elective I was teaching has ended. The good news is, I've taken over Year 10 Maths, which means my teaching load is more maths than it's ever been before. I haven't taught Year 10 for a couple of years now, and…

Petals Around the Rose

Firstly, credit where it is due: I was given this idea by Sarah Hagan, who found it on Annie Forest's blog. So, thanks! So, Petals Around the Rose (the name is really important!) is a game/puzzle which, if you followed that link just now, is likely making you really…

Pythagoras Problem Solving Redux

Year 9 and I are working through Pythagoras' Theorem at the moment. After a little shuffling of units around, this is a little earlier than last year. An interesting consequence of this is that this is the first unit I've taught that I've blogged about previously. Getting to go back…

The Square Root Game

I'm currently working through our "Primes and Indices" unit with Year 7. We've already looked at square roots of perfect square numbers, and did a quiz on them today. But we also wanted to look at find the square root of other numbers. For this we played The Square Root…

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 journey from Australia to the United States:

Dropping the S

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

Math Equals Love

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