【自治医大】何個も図を書くつもり？1つで十分。なぜ教科書はこの「一手」を王道にしないのか

#Mathematics #QuadraticEquations #QuadraticFunctions Having stood at the front of the classroom for so long, and having seen so many students hit a wall due to time constraints on this type of problem, let me say this: Are you students struggling with these kinds of problems involving the arrangement of solutions in mathematics? "I ended up drawing six diagrams because I was writing out the discriminant, axis, endpoints, etc." "In the end, I couldn't figure out which was the answer." "There's no way I can finish this within the exam time." This is actually the standard, textbook method of solving this problem, but if you do it this way during an actual exam, you will undoubtedly run out of time. Why is this cumbersome method of drawing six diagrams taught as commonplace in schools? Why isn't there a smarter, less error-prone "step" that isn't included in textbooks? In this video, First, we will recreate the "hell of drawing six diagrams" that many students fall into. ・Following that, I will reveal a "one-trick move" that will instantly resolve the problem. Knowing this "one-trick move" eliminates the need for six diagrams. You can derive the answer by simply looking at the movement of a single graph. It's not in textbooks, but it will be your most powerful weapon in exams. Please see for yourself this "truth about mathematics that makes things so easy it's almost unfair." This content is especially recommended for those who want to escape the hell of case analysis and those who want to solve problems elegantly while reducing calculations. "I never thought of it this way!" "Using this one-trick move makes it so much easier!" I will carefully explain the thinking process that leads to such discoveries, using an actual entrance exam problem (revised from Jichi Medical University). However, mastering the standard solution methods in textbooks is a prerequisite. Knowing this one-trick move will dramatically improve your understanding. If you found this video helpful, please give it a thumbs up and leave a comment; it would be greatly appreciated. We will continue to share solutions and ideas useful for university entrance exam mathematics, so please subscribe to our channel! ◆ Subscribe here! 👉www.youtube.com/@maseman-sugaku?sub_c... 【Time Schedule】 00:00 Opening & Problem Confirmation 00:38 Six Case Analysis Patterns (Using Discriminant, Axis, and Base Point) 02:20 Solutions for Case Analysis Patterns ① and ② 03:53 Solutions for Case Analysis Patterns ③, ④, ⑤, and ⑥ 05:33 Preparation for Constant Separation 07:09 Formulating a Strategy for Constant Separation Using a Graph 10:15 Solution for Constant Separation Thank you for watching until the end! #UniversityEntranceExam #ExamMathematics #ExamPreparation #ThinkingSkills #MathematicsII #ExamProblems #JichiMedicalUniversity #Study #HighSchoolMathematics #MedicalSchool Reference Materials: Multiple university entrance exam problem sets and reference books (e.g., New Action Legend)