MathsClass

A blog about teaching and learning in a maths classroom.

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Dates as Operations 2017

Wednesday, 28 December 2016 ·

Like most teachers I write the date at the top of the whiteboard each day. As an extra point of interest, in 2016 I endeavoured to write a number sentence using the digits of the date, in order, underneath the date.

Division problems

Sunday, 08 February 2015 ·

My Year 7s do not have a good grounding in division.

Self-checking Christmas Worksheet

Thursday, 04 December 2014 ·

Here's a self-checking, simple questions, as you get the answers correct the tree lights up.

Nothing fancy. Just needed something for a computer lab tomorrow.

Number of the day

Monday, 27 January 2014 · (2) Comments

Here's a starter activity I have built on MathsStarters: Number of the day.

Number Sense Posters

Sunday, 17 March 2013 ·

For a few years, I’ve noticed that kids not only don’t know/struggle with their times tables, but also general ‘number sense’.

Kitchen Scale

Monday, 28 January 2013 ·

I put up my first image on Dan Meyer’s 101 Questions yesterday, Kitchen Scale. Wander over there.

What’s the first question that comes to your mind?

Times Tables Grid Wall Poster (Made4Math)

Friday, 21 September 2012 ·

It’s the last day of term here, so teachers might want to spend some time today fixing up their room. So, I brought my Made4Math Monday forward.

I needed some times table posters for my classroom, but the posters you can buy tend to be for younger students and I haven’t seen a grid version (rather than each table listed separately).

Lift Buttons

Thursday, 05 January 2012 ·

Whilst often used as a textbook example, I had never seen negative numbers used in a lift before.

Tables Spider

Monday, 18 April 2011 ·

In 2007, I wrote about a resource, a Number Spider, that I used as a lesson starter.

For the new year

Sunday, 30 January 2011 ·

Here are some resources for the new year…

Follow-up to WCYDWT: Spacing Evenly

Saturday, 18 September 2010 ·

I showed WCYDWT: Spacing Evenly to some of my classes this week. A couple of reflections…

WCYDWT: Spacing Evenly

Sunday, 12 September 2010 ·

A real-life version of this problem presented itself today.

Question 20. Find the least number of cuts needed to cut a log into 5 equal pieces.

(Source: Elementary Math Mastery, Rhonda Farkota)

Letters and Numbers

Friday, 10 September 2010 ·

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

Guessing to learn

Wednesday, 09 December 2009 ·

This week, my Year 8s have been looking at inequality signs, graphing inequalities and solving simple (one-step) inequalities. Today, after solving inequalities, we played a simple game. A simple, obvious game, that really doesn’t warrant a blog post.

Words for operations

Monday, 12 October 2009 ·

I’ve been meaning to try ClassTools.net for a while. With ClassTools.net you can make interactive Flash games, from a range of templates, then save and share them.

Million, billion, trillion

Thursday, 12 March 2009 ·

I used to think that I knew what 1 billion was, i.e. 1 000 000 000 000. Then a couple of years ago, I looked on Wikipedia and found there were two defintions: Long and short scales.

The Big Picture

Saturday, 21 February 2009 ·

If you don’t have The Big Picture from boston.com in your RSS feeds, it’s time to add it. Alan Taylor regularly collects some fascinating photos together. This edition, At work.

The Story of 1

Thursday, 01 January 2009 ·

Here’s a video about the history of number, in particular the numbers 0 and 1.  Our Year 7 program begins the year looking at ancient number systems, so this video will fit in nicely.

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About

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