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The six main lope: areas covered in the Diagnostic Tests are: Kinetic Theory, Atomic Strict ire; Bonding and the Periodic Table salts, purification, acids, bases, metals and their compounds; Activity Series electrolysis. reaction rates, redox reactions and the chemical industry: The Air gas preparations, and the chemistry of sulphur, chlorine, hydrogen and oxygen; Mole Calculations carbon and nitrogen, organic chemistry, fuels and energy.

The Study Aid book goes over all these topics in detail, while the 30 sections in the Learning Modules programs break the information into manageable units. The Hints are particularly good in this package, and if the wrong answer is typed in. a helpful comment appears and you are also directed towards the relevant pages in the Study Aid book.

For the serious student, these packages represent superb value for money. What they are most definitely not, is a short-cut for the less able. The fact that each Course Tutor covers such a wealth of information may cause problems to the student who is unsure about the precise requirements of the exam syllabus being followed, but an approach to the teacher would resolve this problem. The producers of these programs have avoided any temptation to include gimmicks or unnecessary graphics to give them more mass appeal, and a great deal of thought has gone into their preparation. Their main advantage lies in the way the computer is used to test understanding and pinpoint areas of weakness, to provide personal tuition based on the Diagnostic Test results, and to give practice in answering examination questions. As examples of truly interactive learning they are impressive indeed.