A set of 4 subjects with 2 sessions of lectures. Mathematics: The problem sheet had some writing in pencil, but it has been erased. Includes handwritten solutions & handwritten lecture notes. Physics: Both the problem sheet & answer sheet are new. Includes handwritten solutions, handwritten lecture notes, & important points handout distributed during the lecture. Chemistry: Both the problem sheet & answer sheet are new. Includes answer sheets & handwritten lecture notes. English: Lecture content is written in blue pen on the problem sheet and the distributed answer sheets. The answer sheets include full translations and key question points. The latter half of the problem booklet contains "self-study problems" with their answers and explanations.