3% Olympiad 2nd course
Chapter 1.
Drainage Determination Method ①
Chapter 2.
Triangles with equal heights①
Chapter 3.
Calculating using the circumference ①
Chapter 4.
Number of cases where the sum is constant
Chapter 5.
Increasing sequence (differential sequence)
Chapter 6.
Work-related issues
Chapter 7.
Greatest common divisor and least common multiple
Chapter 8.
Area of ​​a triangle application problem
Chapter 9.
Split and find①
Chapter 10.
Problems about the number and sum of numbers
Chapter 11.
Speed ​​Problem ①
Chapter 12.
Factoring into products of small numbers (prime decomposition)②
Chapter 13.
Observation of the rest ①
Chapter 14.
Triangles with the same height②
Chapter 15.
Stacking Tree①
Chapter 16.
New operation
Chapter 17.
Hour and minute hand angle problem ②
Chapter 18.
Fraction calculation problems
Chapter 19.
Drainage Determination Method②
Chapter 20.
Congruence of shapes
Chapter 21.
Parallel translation of shapes
Chapter 22.
Inclusion and Exclusion②
Chapter 23.
Application of increasing sequence
Chapter 24.
Fraction application problem ②
Chapter 25.
Find the number of multiples
Chapter 26.
Calculating using the circumference②
Chapter 27.
Split and find②
Chapter 28.
Complete the equation by reasoning
Chapter 29.
Problem about averages ①
Chapter 30.
Fraction size comparison problem
Chapter 31.
Making a drain
Chapter 32.
Area of ​​a trapezoid
Chapter 33.
polygon inscribed in a circle
Chapter 34.
Guess the score
Chapter 35.
Speed ​​problems solved with pictures
Chapter 36.
Strange Clock

1.
This book is organized into 144 smaller topics, categorized into "areas outside the curriculum" deemed suitable for elementary school students to study, "areas covered in middle and high school courses but where elementary school students can observe phenomena and understand theories," and "areas covered in the curriculum but requiring high-level problem-solving."
The 144 small topics are categorized based on criteria that students can easily accept, and because they are for elementary school students, the size of each topic is categorized relatively small.

2.
I have listed the breathing techniques that are actually suitable for studying.
It is divided into a total of 4 courses, and each course contains 36 topics.
The 36 topics are the amount to be studied over 6 months, with 6 topics per month.

3.
I have explained it in a way that it can be explained to elementary school students.
Course 1 has selected and explained topics so that anyone who has completed the 4th grade elementary school curriculum can understand them.
Likewise, you can study Course 2 if you have completed the 5th grade curriculum, and Courses 3 and 4 if you have completed the 6th grade curriculum.
Of course, in the 3rd and 4th courses, we also preview the middle school level, so we also included middle school level solutions.
The answers and explanations contain detailed explanations so that you can study on your own.

4.
Even for 5th and 6th graders, this is a program that allows for the greatest learning effect by completing all 4 courses in order from Course 1.