Concept: Teacher Jeongmil's Water Purifier Concept Notes
[Jeong]precisely [Su]hak [Gi]basic [Jeong]su [gi]s: 'Water Purifier' Concept Notes
https://jeongmilmath.tistory.com/21
Problems: Concept Principles RPM Middle School 1-1
This is the newly released 25th edition orange textbook. The problems differ from the 24th edition blue textbook.
Here is the playlist for the 24th edition explanation lectures.
• 개념원리 RPM 중1-1 해설 강의
[Recommended for these students]
1. Students studying Middle School 1-1 for the first time
2. Students who have already studied Middle School 1-1 but whose concepts are all jumbled up
3. Students who want to study concepts and problem-solving at the same time but have nowhere to turn (in various senses)