7 | 5th LS(200205) Linear Eqs(P14) | Jp Park | 2020-02-06 | 0 |
5 | 3rd LS(200122) Introduction of factorisation | Jp Park | 2020-01-23 | 0 |
4 | 2nd LS(200118) 식의 전개 EX15 (P82) | Jp Park | 2020-01-19 | 0 |
2 | 2nd Demo LS(200113) 지수법칙(P59) | Jp Park | 2020-01-14 | 0 |
1 | 1st Demo Lesson(200112) 직선의 방정식 | Jp Park | 2020-01-13 | 0 |