It sounds like you might want to spend some time with a French tutor. From what I have been reading from the IBO, your final grade will be based on the following:
Assessment at a glance
Type of assessment Format of assessment Time (hours) Weighting of
final grade (%)
Paper 1 Text-handling exercises on
four written texts 1.5 25
Paper 2 Written productive skills
through one writing exercise 1.5 25
Written assignment Written exercise and
rationale based on
intertextual reading 20
Oral work Individual oral presentation 20
Interactive oral activities 10
It sounds like you will have to be able to analyze French texts (that's why your teacher suggested reading French books), produce written French, and speak French (oral presentation & interactive oral activities).
Besides getting a tutor, here are some other things you can try:
- form a study group, or at least have a study buddy from your class
- try talking to students who have taken and already passed the course to get some inside tips
- keep reading, not just books but try the online newspapers like Le Monde, Le Figaro, Le Canard Enchainé, ...
- listen to French language programming, look for RF!, TF1, France 2 or France 3, TV5 or TV5 Monde, ...
- Watch films in French, you can turn the English subtitles on to help check your understanding.
Just try and stay with French from France, unless your coursework already has French from the greater francophonie in it.