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Difference (version 1.2)

Date of issue: Jul. 2004

What is it?

Difference is an interactive teaching program (ITP) which allows you to compare two rows of beads and to analyse the calculations they can represent. It can be used to promote the language of addition and subtraction, particularly the interpretation of difference. The ITP operates as a series of animations which show how the rows of beads can be represented by two number lines and then as a single number line with the difference indicated by a 'jump'.

Downloads

Right-click to downloadDifference guide (WORD 159Kb)

Right-click to downloadDifference guide (PDF 159Kb)

Right-click to downloadDifference (Mac) (HQX 1.8Mb)

This version of Difference runs on Apple Mac OS computers. Download the file and click on the file to extract the application.

Right-click to downloadDifference (Shockwave SWF 33Kb)

This is an interactive Flash movie file. Click on the title to preview the movie in your browser. To save it on your computer right-click on the title and opt to 'Save Target As...' [Apple Macintosh users click and hold]. You will need Flash Player installed on your computer to run this program.

Right-click to downloadDifference (PC) (EXE 1013Kb)

This version of Difference runs on Windows based personal computers. This is an '.exe' file which may be rejected by some networked computers where an internet firewall is in place. If in doubt download the zipped version.

Right-click to downloadDifference (ZIP 552Kb)

This version of Difference runs on Windows based personal computers. You will need to have an unzip utility, such as WinZip for Windows or StuffIt Expander for Windows and Apple Macintosh, installed on your computer to unzip this file.