A blog about teaching and learning in a maths classroom.

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Growth Mindset. Yes, but…

Thursday, 09 April 2015 ·

As I've thought about "Growth Mindset", see also Jo Boaler, I am convinced but then I head into class and walk out unconvinced. That disconnection is helpfully elaborated on in this blog post:

The Math Ceiling: Where’s your cognitive breaking point?

Math with Bad Drawings

Worksheets are not bad… here’s proof

Thursday, 09 April 2015 ·

Don Steward shares his excellent worksheets on his blog, Median.

Coordimate on KickStarter

Sunday, 15 February 2015 ·

The Coordimate looks like a great idea, currently 80% funded:

Adam Spencer’s Big Book of Numbers

Friday, 16 January 2015 ·

Cover of Adam Spencer's Big Book of NumbersThis holidays I wandered through Adam Spencer's Big Book of Numbers (currently sold out). For teachers, if you purchase from Adam's site, I paid a little extra to also get a Lesson Plans booklet.

New year reading

Wednesday, 14 January 2015 ·

How to Avoid Thinking in Math Class is developing into a nice series to take us back into the new school year.

Current State 2

Sunday, 14 April 2013 ·

After writing Current State, I read these three articles that all resonated.

A Mathsmas advent calendar

Wednesday, 28 November 2012 ·

It is worth pointing out that Tanith on her blog, Jellybeans and other Tangents is blogging A Mathsmas Advent – 24 days of maths teaching ideas for the holiday season.

Lesson Prep

Monday, 16 January 2012 ·

Where do you go for maths lessons and good lesson ideas?
Here’s the start of my list, I’m not particularly recommending these sites, just listing them as places to look for ideas.
Lesson Ideas…?

Mathematician’s Dice

Wednesday, 26 January 2011 ·

Feeling nerdy? Backing this project on KickStarter will get you a Mathematician’s Dice for just $5 (2 for $10, 4 for $20).

Rather than the boring numbers 1 to 6, these dice have the six most important numbers in mathematics on them — i, 0, 1, φ, e and π!


Letters and Numbers

Friday, 10 September 2010 ·

Jeff of Webmaths points out a new Australian TV show, Letters and Numbers.

End of Term 7

Tuesday, 29 June 2010 ·

The end of term series of posts are some of the most popular on this site.

Using the web

Monday, 11 January 2010 ·

I just posted on my personal blog about how I use the web, looking at how the various technologies (RSS) and tools (Google Reader, Delicious, Twitter) fit together.

Some graphs are just wrong

Friday, 27 November 2009 ·

Here’s a great example of a graph that is just wrong, the data may be correct, but it has obviously been represented the wrong way. Watch the video…

Classroom Icons

Monday, 24 August 2009 ·

Having found this tip on Doug Belshaw’s blog about using PowerPoint:

Find graphics that represent things you do frequently in lessons (perhaps from clipart) and always use these when doing a similar activity. For example, a pen writing for when it’s time to start work or two people talking for discussion/group work. These help reinforce good habits and aid classroom management.

I went looking for some nice graphics to use.

Confusing with words

Sunday, 26 April 2009 ·

I wonder how often maths teachers make confusing statements like this in class: screenshot

Single aged pensioners may lose one-third of an expected $30-a-week increase in the May 12 budget. [emphasis mine, front page of on 26th April 2009]

What they actually mean is that the expected increase will be $20.

Chocolate and Maths

Saturday, 18 April 2009 ·

Cadbury Freddo

Eating chocolate could improve the brain’s ability to do maths.

[full story:

AKA, justifying the use of Freddos in the maths classroom.

Pie Graphs - “when will I ever use this?”

Saturday, 07 March 2009 ·

Dilbert answers:

1234567890 Day

Friday, 13 February 2009 ·

We celebrated 12345678890 Day in class today…

See, maths is important

Tuesday, 27 January 2009 ·

An embarrassing, and slightly funny, example of why Mathematics is important (in this case, being able to read a calendar).

Theatrical Aspect Ratio

Thursday, 15 January 2009 ·

Recently Dan Meyer posted his thoughts on the ideal maths textbook, which would actually be a digital archive of very interesting mathematical media.  This is a great idea, and whilst I don’t have a projector in my classroom yet (although fingers-crossed), it would be something that I would buy/subscribe to.  Anyway, there was a challenge in this for me: being mindful of the media I consume and the world around me to collect digital bits and pieces that might help explain a mathematical concept (I commented on Dan’s blog that I missed the opportunity to take a picture of 3m³ of dirt I had delivered).  The second, to my mind harder, challenge is to take that item and make a meaningful and engaging connection with a concept being taught in class.

Wild About Math!

Friday, 02 January 2009 ·

I’m currently sorting through the many teaching blogs I subscribe to, trying to cull the list.  The thing about Maths related blogs that tends to keep them in the list is that Maths teachers generally write more practical posts.

End of term activities 3

Thursday, 11 December 2008 ·

The end of year activity of choice this year, will be making Zombies!

Two fonts - tally and calculator

Saturday, 23 February 2008 ·

Two very handy fonts that will help make worksheets and other computer created resources look great.

Number Bowling

Friday, 22 June 2007 ·

Another game, this time for the most basic “technology” in the maths classroom – the calculator.


Wednesday, 23 May 2007 ·

I’m trying to build up a collection of maths games for lesson fillers, reward and skills practise.

EAA Mathematics Resources

Tuesday, 15 May 2007 ·

Here’s a nice page of resources for Mathematics teachers, published via the EAA (Educational Assessment Australia, UNSW).


Saturday, 03 March 2007 ·

CombiNumerals is a really handy font for Mac and Windows.

Report: “Their Space: Education for a digital generation”

Wednesday, 17 January 2007 ·

In the 16th January 2007 episode of the BBC’s program Digital Planet, Gareth Mitchell talks to the authors of a report about children and technology.  The report is titled “Their Space: Education for a digital generation”.  It’s a free PDF download.  I haven’t read it yet… maybe some reflections in a future post.

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Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
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