The grades awarded for each of the six courses range from 1 (lowest) to 7 (highest). Students can also be awarded up to three additional points for their combined results in Theory of Knowledge (TOK) and the Extended Essay. Therefore, the highest total that a Diploma Programme student can get is 45 points. The diploma is awarded to students who have at least 24 points and have a satisfactory participation in Creativity, Action and Service (CAS).