This is a course to familiarise you with the basics of the Bible, Jesus and the Christian Life. Unlike the Alpha Course, where there are discussion groups, the aim of Foundation Course is to give you information so as to build your confidence in handling the Bible. Each week there is a handout and homework(!), so that you can ink in what you are learning.
The Christian Foundation Course is a great course to do before you do Alpha, but unlike foundation works in buildings, it is also fine to do it any time!