It's also a two year programme where you take the same classes for the two years, with the same classmates and same teacher (generally).
Like TW said, one has 6 classes + TOK (basically how do we know that we know something?). One can take 7, but then one has to choose which of the 7 subjects will
not count towards the IB Diploma (so say you reeeeally want to take a 4th language or drama but already have your 6 subjects, then you take a 7th... at the beginning of senior year when you register for the exams you have to decide which 6 will count towards the IBD and which one won't).
TOK (theory of knowledge) matters because it, in conjunction with the EE (Extended Essay), gives you a maximum of 3 bonus points (which I heard yesterday aren't easy to get
). ToK is graded on the A-E (E='incomplete') scale throughout the year (in-class essays and class participation); when it counts for the 3 bonus pts, the tok component is worked out by the average of what you got on the ToK presentation (I did How do we gain knowledge from dreams? [the sleeping kind]) and the ToK essay (choose one of 10 prescribed titles).
The points to letters translation TW gave is ok but is deeefinitely not fixed! 7 I'd put more to be an A** for HL classes (and maybe an A* only for SL?), and a 6 can be anywhere between a 'B++' and an A.
But 3, 2 and 1 all equal an F. To pass a HL course, one needs > (or equal to) 4points, and I think for SL > (or equal to) 3????? points
-->the 3 bonus points "grading system" TW wrote about is this thing:
http://www.rism.ac.th/Hs/ib website/IB Extended Essay_EE_TOK_Matrix.htm
Plus, there are all sorts of rules to what actually constitutes passing the IB:
wikipedia said:
Diploma conditions:
In order to be awarded the full IB Diploma the following requirements must have been met:
* at least three subjects are completed at Higher Level (HL) and three at Standard Level (SL).
o should four subjects be completed at HL then only two need be completed at SL.
* all six subjects have been awarded a numerical grade higher than 1, with a minimum total score of 24.
* the CAS (Creativity - Action - Service; community service) requirement of 150 hours has been completed
* the Extended Essay and TOK course have been completed and essays submitted.
o additionally a grade D or better has been awarded in either the Extended Essay or TOK.
* if the overall score is 24-27, there is no grade 2 at HL and not more than one grade 2 at SL; if the overall score is greater than or equal to 28, not more than one grade 2 at HL and no more than two grades 2 at SL; altogether, there are no more than three grades 3 or below
* at least 12 points (12 for overall score 24-27; 16 if four HL subjects are taken) have been gained on HL subjects, and 9 (6 if only two SL subjects are taken) on SL subjects
* the final award committee has not judged the candidate to be guilty of malpractice
Diploma conditions