| 166 | 166th LS(230211) Differential Equation (PDF 329) | Jp Park  | 2023-02-11 | 1 |
| 161 | 161th LS(230118) 지수, 로그 미분 (PDF 120) | Jp Park | 2023-01-18 | 1 |
| 68 | 68th LS(211209) Midpoint (PDF 125) | Jp Park | 2021-12-10 | 1 |
| 67 | 67th LS(211207) Triangle (PDF 122) | Jp Park | 2021-12-07 | 1 |
| 66 | 66th LS(211205) Distance(PDF 120) | Jp Park | 2021-12-06 | 1 |
| 61 | 61th LS(211124) Sequence (PDF 537) | Jp Park | 2021-11-24 | 1 |
| 57 | 57th LS(211021) Simultaneous Eqs (PDF 356) | Jp Park | 2021-10-22 | 1 |
| 50 | 50th LS)210915) 시험 대비 학교 자료 | Jp Park | 2021-09-15 | 1 |
| 49 | 49th LS(210912) 시험 대비(recurring decimal, percent) | Jp Park | 2021-09-12 | 1 |
| 48 | 48th LS(210911) Ratio 복습 | Jp Park | 2021-09-11 | 1 |
| 47 | 47th LS(210905) Standard form 학교자료 | Jp Park | 2021-09-05 | 1 |
| 44 | 44th LS(210729) Exponential Eqs (PDF P62) | Jp Park | 2021-07-30 | 1 |
| 43 | 43th LS(210725) Indices (PDF P60) | Jp Park | 2021-07-25 | 1 |
| 42 | 42th LS(210718) Indices (PDF P54) | Jp Park | 2021-07-19 | 1 |
| 36 | 36th LS(210620) Algebra (PDF P38 #2) | Jp Park | 2021-06-20 | 1 |
| 33 | 33th LS(210529) 연립방정식의 활용 (PDF P310) | Jp Park | 2021-05-29 | 1 |
| 32 | 32th LS(210523) 연립방정식의 활용 (PDF P310) | Jp Park | 2021-05-23 | 1 |
| 30 | 30th LS(210506) Simultaneous Eqs by Elimination (PDF P307) | Jp Park | 2021-05-06 | 1 |
| 28 | 28th LS(210422) Simultaneous Eqs(PDF P304) | Jp Park | 2021-04-23 | 1 |
| 27 | 27th LS(210418) 직선의 방정식 (PDF P298) | Jp Park | 2021-04-18 | 1 |
