As a maths teacher, I am constantly looking for student friendly software to help my classes achieve the best grades they possibly can. While I don't believe that any of these study guides/revision software programmes can ever replace good teaching, I do believe that they can help with the revision process. This CD-Rom from Britanica is certainly one of the better ones I have come accross, so much so that I have recommended it to some of the students I tutor on a private basis.
The lessons are really well put together and in most cases, don't assume vast amounts of prior knowledge, but go through the topics step by step, giving the student plenty of opportunity to practice the lessons being given.
The software itself is well thought out and the graphics are great. The 'virtual' calculators supplied are easy to use and so far i have not found any problems with running the programmes.
It has a great feature whereby students can test themselves on all the topics and the results are saved for later. Each test is designed to be done more than once and each sucessive attempt will save the results so that progress can be seen.