A blog about teaching and learning in a maths classroom.

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Pythagorean Dates

Tuesday, 18 August 2015 ·

Pythagorean Dates WorksheetMonday (17/08/15) was a Pythagorean Day (172 = 82 + 152).

Magic Vs - Year 5 Lesson

Thursday, 23 July 2015 ·

Screenshot of Magic Vs SMART Notebook file.Today I had the fun of 20 Year 5 students in my classroom. I used the Magic Vs problem from NRICH. NRICH have lots of good leading questions, solution discussions and videos. There was lots of great thinking and discussion.

I made a SMART Notebook file to aid the discussions, available on MathsFaculty.


Relative Frequency - Investigation

Thursday, 23 April 2015 ·

Probability is one of those topics where it's best to "see it".

Worksheets are not bad… here’s proof

Thursday, 09 April 2015 ·

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

Constructing Triangles

Saturday, 29 November 2014 ·

One of the challenges I had this week when students were constructing rectangles and squares using a ruler and set square (drafting triangle) was checking the accuracy of the measurements (sides and angles). I walked around with a ruler and set square checking their drawings.

Water usage and collection

Tuesday, 03 June 2014 ·

For my HSC Mathematics General 1 class, we are currently completing the Focus Study FSPe1CEC Water usage and collection.

In this topic, students interpret information, make comparisons, and perform a range of calculations in relation to personal water usage.

Consumer Arithmetic - Spending - Electronic Worksheets

Monday, 17 December 2012 ·

This is part 2 of my electronic worksheets for Consumer Arithmetic. Part 2 focuses on Spending Money, in particular: profit and loss, discounts, purchasing, best buys and buying on terms (hire purchase). (Part 1 focused on earning money)

The Biggest Loser 2012

Monday, 20 February 2012 ·

The Biggest Loser 2012 Worksheet

Each year I use the TV Show, The Biggest Loser, as an application of percentages – here is a worksheet for 2012 setting out the contestant data that your students can use to perform some calculations.

I’m completing this activity earlier than normal this year, so the data is from earlier in the competition.

Superman Number Plane Logo

Sunday, 06 November 2011 ·

A number plane drawing worksheet for making the Superman logo. Included in the file (see below) is a page with a suitable coordinate grid.

Smartie Statistics

Thursday, 08 September 2011 ·

Looking around, there are lots of activities for collecting and analysing data using small boxes of Smarties. Here is my version.

The Biggest Loser 2011

Monday, 04 April 2011 ·

Each year I use the TV Show, The Biggest Loser, as an application of percentages.

Teaching Surface Area

Thursday, 25 November 2010 ·

I like teaching surface area, I think it’s an interesting topic. Yet, I find kids struggle with the concept. Not understanding the basics of area and then getting over the prior knowledge of solids meaning volume are two aspects that cause some difficulty.

Inequalities with GeoGebra

Friday, 19 November 2010 ·

This is a great interactive for representing simple inequalities on the number line: Inequalities with GeoGebra.

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…

Building Bridges

Saturday, 28 August 2010 ·

For Australian teachers with access to objects from The Le@rning Federation, the resource Bridge Builder is a nice way to deal with geometric patterns and finding the algebraic rule.

Investigating Scientific Notation

Wednesday, 26 May 2010 ·

I’ve been trying to increase my use of the laptops with Year 9.

Pythagoras Outside

Saturday, 15 May 2010 ·

This is a fairly simple activity that allows for something different in the teaching of Pythagoras’ Theorem.

Pie Graphs on Netbooks

Thursday, 03 December 2009 ·

Despite every Year 9 student having a laptop for a few weeks, the topics we’ve been covering haven’t lent themselves to full laptop lessons. To end the term, though, we’re reviewing graphs.

Evidence of doing anything

Wednesday, 25 November 2009 ·

I think that each student using a netbook/laptop in your class presents some slightly different issues in Maths.

Link: Western Bulldogs Number Plane Logo

Monday, 28 September 2009 ·

If you’re looking for more number plane drawings, but lean towards AFL, then check out Jeff Trevaskis’ Western Bulldogs Number Plane Logo from his blog, Webmaths. Nice one Jeff!

Brisbane Broncos Number Plane Logo

Monday, 21 September 2009 ·

Last year, I posted the Melbourne Storm Number Plane Logo – and today, exactly one year later, purely by coincidence, I’ve made a Brisbane Broncos Number Place activity.

Surface Area and Chocolate

Sunday, 16 August 2009 ·

An excuse to use chocolate in a maths lesson…

The Biggest Loser 2009

Sunday, 05 April 2009 ·

The Biggest Loser, the Australian version, is again on television. This year, Year 9 are looking at Percentages at the same time.

Equal areas in a circle

Monday, 24 November 2008 ·

Trying to motivate Year 10 after the School Certificate Exams are completed is tough.  I like to use geometric design activities.  Whilst they seem like “fun”, or at least non-taxing on the brain – they get the students following a procedure, using geometric instruments and can be lead to a good discussion about the Mathematics of design.

Fraction Shading

Saturday, 09 August 2008 ·

Understanding the concept of a fraction by shading in a part of a shape is a fairly standard introductory activity.  When I did a search on Flickr for fractions, I found this set of fraction shading diagrams*.  What I liked about these diagrams is that you are required to represent two fractions on one diagram.

Angle Wheel

Friday, 27 June 2008 ·

Building an Angle Wheel is a great way to consolidate an introduction to angles for Year 7.

Estimating length

Saturday, 03 May 2008 ·

When looking at measurement, year 7 measure “body units” and use them to measure things in the classroom, as an example of estimating.  Then, when we move onto perimeter, we come back to one body unit, the pace.

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