A blog about teaching and learning in a maths classroom.

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Scale Cars

Sunday, 23 November 2014 ·

Matchbox cars, specifically that brand, have a scale written underneath.

I've always wanted to do something with that.

Preparing to Engage, Enhance and Extend

Tuesday, 26 August 2014 ·

I am presenting twice in September about how I use technology to engage, enhance and extend in my teaching.

Activity - Atlantis and Hubble in front of the Sun

Wednesday, 23 April 2014 ·

If we can determine the altitude of a plane in front of the moon, why not try the altitude of the Space Shuttle Atlantis in front of the Sun?

Activity- Airplane in front of the moon

Saturday, 19 April 2014 ·

Back in 2011, Nordin Zuber posted this found image on MathsLinks.

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?

It does the Math™

Thursday, 27 December 2012 ·

Back in 2010, putting a piece of wall in our kitchen to attach a child gate to, a problem arose about evenly spacing screws.

Lift Buttons

Thursday, 05 January 2012 ·

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

Double Strength Cordial and Ratio

Tuesday, 18 January 2011 ·

When introducing the topic of ‘ratio’, I use the mixing of cordial as an illustration that most kids get.
The idea of using 1 part of cordial to 4 parts of water makes sense to them – and they get the idea of equivalence when you mix the cordial in a different sized container (I use the examples of using cups to fill a bottle for a picnic, and using buckets to mix a big batch for a party).

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)

My classroom

Monday, 25 January 2010 ·

I really appreciate having my own classroom for many reasons, but one is the ability to place student work (the fun stuff) around the classroom.

Chocolate Bar Graphs

Friday, 01 January 2010 ·

Some chocolate discussion starters for looking at bar graphs: a series of chocolate bar graphs.

Heat Sinks - Surface Area

Monday, 16 November 2009 ·

I’m about to get into Surface Area with Year 8.  Of course, there will be chocolate.  But, since I last looked at Surface Area with Year 9 I’ve been thinking about Heat Sinks.

Perimeter of curved shapes

Saturday, 08 August 2009 ·

This week, Year 9 were looking at finding the perimeter of shapes that include curves (parts of a circle).

What’s in the fridge?

Monday, 15 June 2009 ·

What else could you do with capacity?  As I was getting a glass of juice to have with my breakfast, I was thinking that I could use this image as a quick question at the start of a lesson.

Digital Media - Capacity

Saturday, 13 June 2009 ·

With laptops rolling out shortly and projectors appearing in some classrooms, we should be thinking about collecting digital media for use as stimulus or investigation material.  So, the other day when filling up my young daughter’s bottles, I took some pictures.

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 in your RSS feeds, it’s time to add it.  Alan Taylor regularly collects some fascinating photos together.  This edition, At work.