What differences have people noticed between the HL and the SL of a subject? What have you heard from people who take the same subject as you, except at a different level? How are their perceptions of the difficulty, courseload, etc. of the subject different from the perceptions that you have of that same subject that you take at a different level? I've found English and History do not have as much of a difference between HL and SL. For both subjects, the classes are actually a mix of HL and SL students, so students at both levels basically do the same work. The only difference is when we are doing work that counts for the final grade, like World Lit and History IA. Then, the teacher will simply notify the students that for SL students, the assignment will be worth more. Also, SL English students occasionally do not have to attend classes, because the class is studying the additional HL novels. Of course when students review the material for the finals, SL History students don't have to review as much. Biology is also taught in mixed classes. My teachers suggests that SL students should still take notes when he's teaching HL material because it overlaps with our provincial education system, which we also have to fulfill requirements for. From what I've heard from my HL Physics friends, the HL Physics course sounds a lot more intense than my SL Physics class. What do you find are the differences between the HL and the SL of the same subject, comparing what you've heard to what you've experienced?