| 64 | 64th LS(210803) Past Paper (PDF 159 #10) | jp Park  | 2021-08-03 | 0 |
| 63 | 63th LS(210730) Finding Root using iteration (PDF 147) | jp Park | 2021-07-31 | 0 |
| 62 | 62th LS(210727) Integration of trigonometry functions (PDF 1.. | jp Park | 2021-07-27 | 0 |
| 61 | 61th LS(210723) Integration of trigonometry functions (PDF 1.. | jp Park | 2021-07-24 | 0 |
| 60 | 60th LS(210720) 1/x Integration (PDF 117) | jp Park | 2021-07-20 | 0 |
| 59 | 59th LS(210716) Integration (PDF 114 #9) | jp Park | 2021-07-16 | 1 |
| 58 | 58th LS(210713) Implicit Differentiation (PDF 105 #1) | jp Park | 2021-07-13 | 1 |
| 57 | 57th LS(210709) Ch4 Differentiation (PDF 99 #7) | jp Park | 2021-07-10 | 0 |
| 56 | 56th Lesson(2021/07/06) Ch4 Differentiation (PDF 90) | jp Park | 2021-07-06 | 0 |
| 55 | 55th LS(210702) Ch3 Cross Topic Review (PDF 79) | jp Park | 2021-07-03 | 1 |
| 54 | 54th LS(210629) Ch3 삼각함수 연습문제 (PDF 76 #2) | jp Park | 2021-06-29 | 1 |
| 53 | 53th LS(210625) Ch3.5 삼각함수 합성 (PDF 72 #9) | jp Park | 2021-06-25 | 1 |
| 52 | 52th LS(210620) Ch3.2 Compound Angle Formula (PDF 65 #14) | jp Park | 2021-06-20 | 1 |
| 51 | 51th LS(210618) Ch3.2 Compound Angle Formula (PDF 59) | jp Park | 2021-06-18 | 2 |
| 50 | 50th LS(210613) Ch3 Trigonometry (PDF 56) | jp Park | 2021-06-13 | 1 |
| 49 | 49th LS(210611) Ch2 Log and exponetial functions (PDF 39) | jp Park | 2021-06-12 | 0 |
| 48 | 48th LS(210529) Log Eqs (PDF 39) | jp Park | 2021-05-29 | 1 |
| 47 | 47th LS(210523) Log Function 연습문제 (PDF 44) | jp Park | 2021-05-23 | 1 |
| 46 | 46th LS(210521) Log Function (PDF 37) | jp Park | 2021-05-21 | 1 |
| 45 | 45th LS(210516) Factor Theorem(PDF 33) | jp Park | 2021-05-16 | 1 |
