Mathematical Conventions

Increase screen size

Working through the examples

Completing the tasks

The Tab key

Understanding task feedback

Macromedia Flash


Mathematical Conventions

A full-stop rather than a decimal point is used. This is done for technical reasons so when typing your answers you will have to use a full stop. E.g. use 6.7 not 6·7. When hand writing figures you can use a decimal point, i.e. 7·5.

The decimal point symbol is a convention designed to communicate effectively - where it sits, on the line or in the middle, is purely convenience and has no mathematical significance.

Most non-English speaking countries use a comma instead of a point. A German drug house would use 2,5mg rather than 2.5mg.

In most cases a space is used to separate 'thousands' rather than a comma or no space. E.g 2 000 rather than 2000 or 2,000.


There should not be a space between numbers and their units . E.g. 2ml, 24cm, 89kg but a space is used where the unit is written in full. E.g. 700 micrograms.

There should always be a zero in front of the decimal point when the number is less than 1. E.g. 0.4, 0.8, 0.9.

The symbol for 'micro' is 'µ' but when hand written may be confused with a 'u' or 'm'. Hence, always write micro. E.g. use 4 microgram rather than 4µg.

You may like to use a calculator and/or paper & pencil to assist you. There is an on-screen calculator available from Windows Accessories. Start > Programs > Accessories > Calculator.

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Increase Screen Size

To increase the working area of your screen hit the F11 key on your keyboard. This will remove some of the tool bars at the top of the screen giving you a larger area to work with. To change back to the normal screen size, hit the F11 key again.

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Working Through the Examples

To proceed through the course content pages, click on the Continue buttons. Occasionally, a Replay button is shown to allow you to view the section again.

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Completing the Tasks

To complete a task, complete the form (either by typing the answer or selecting from the options shown) and click the Done button. For certain tasks, a Restart button is shown which allows you to begin the task again.

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The Tab Key

When completing the tasks that are included in the Technique and Application sections of the table of contents, you will be required to type your answer in to a number of boxes. To move between these boxes you could use the mouse. Alternatively you can use the tab key.

tab key

Moves cursor to next text field

shift key + tab key

Moves cursor back to previous field

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Understanding Task Feedback

Once you have entered your answers in to the text fields and clicked on the Done button you will be presented with a feedback window. The information displayed here indicates how well you have done. The original questions are repeated for you to refer to. A correct answer will by indicated by a tick, an incorrect answer indicated by a cross and an unattempted question by a question mark.

In the case of an incorrect or unattempted question the actual answer will appear along side in red text. You will be able to compare the correct answer with the original question.

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Macromedia Flash

What is Flash? Flash enables webpages to be made interactive and enhances the users experience with colour, animation and and even sound. Flash has been used quite extensively throughout this course. You do not need to understand Flash and you will be provided with the necessary instructions.

When viewing a Flash 'movie' it is not possible for the user to choose when to go back and review a section. Occasionally this option is offered and is normally marked with a 'Replay' button. You will have the ability to Restart a whole movie once it has ended by clicking on the 'Restart' button.

If you cannot see any of the flash content, click here to download the Flash player