On June 12, "Short-Term Battle Prep School Excellia," a prep school founded by the University of Tokyo, released "Hikaru Shiozaki Slices Through 'Combinatorics'!" as the first in its video course series designed to bridge the gap between textbook knowledge and university entrance exam levels. Hikaru Shiozaki is an editor for the renowned mathematics monthly "Mathematics for University" and his book "Rhapsody of Difficult Problems" is extremely well-known among students aiming for difficult-to-enter universities. He also teaches at Kaisei Academy, and his teaching ability is second to none. As the first installment of its courses designed to elevate students from "textbook level" to "a level competitive for difficult-to-enter universities," Short-Term Battle Prep School Excellia has begun distributing Hikaru Shiozaki's video course on "Combinatorics" in a lecture style of 5 sessions, approximately 75 minutes each. Instead of memorization, the course focuses on understanding combinatorics from its fundamental principles of "why that formula works," allowing students to acquire the thinking methods and practice exercises applicable to past exam questions from difficult-to-enter universities. As a special launch promotion, the course is being offered at a 50% discount until July 31. Students struggling with past exam questions in combinatorics are highly encouraged to enroll. → Confirm Details How to Apply: Please select "Hikaru Shiozaki Slices Through 'Combinatorics'!" from the link above. The application process is simple. Rising Star Mathematics Instructor: Hikaru Shiozaki Hikaru Shiozaki, who has served as an editor for the mathematics magazine "Mathematics for University" for over 60 years and was praised for his outstanding problem-solving skills as the author of "Rhapsody of Difficult Problems." His instruction is described as "brilliant and highly reproducible," and he also teaches at Kaisei Academy, which produces numerous University of Tokyo admits each year.