@Liveitlight oh, don’t leave them in the dark! EE is the Extended Essay, an independent 10-15 page research project which is part of the full Diploma requirements. On the one hand, a great experience in defining and conducting original mentored research, great preparation for college work. On the other hand, no matter how many interim deadlines your teacher sets, an excruciating opportunity for procrastination and self-torture, particularly come winter-spring of senior year. The straw that nearly breaks the camel’s back in terms of completing Diploma requirements – my Diploma student appreciates and enjoys his classes, has no problem with CAS hours, but struggles to find enough hours in the day to make any progress on his EE.