| 80 | 80th LS(230311) Factoring (BIG Algebra 1 PDF 384) | Jp Park  | 2023-03-12 | 0 |
| 79 | 79th LS(230308) Polynomial (BIG Algebra 1 PDF 373) | Jp Park | 2023-03-09 | 0 |
| 77 | 77th LS(230301) Factoring (PDF 54) | Jp Park | 2023-03-02 | 0 |
| 76 | 76th LS(230222) Number Base (PDF 40) | Jp Park | 2023-02-23 | 0 |
| 75 | 75th LS(230218) Unit Conversion (PDF 33) | Jp Park | 2023-02-19 | 0 |
| 74 | 74th LS(230215) Linear Eqs (PDF 23) | Jp Park | 2023-02-16 | 0 |
| 73 | 73th LS(230208) Law of Sine and Cosine (BIM Geometry PDF 517.. | Jp Park | 2023-02-09 | 0 |
| 72 | 72th LS(230201) Trigonometry Ratio (BIM Geometry PDF 503) | Jp Park | 2023-02-02 | 0 |
| 71 | 71th LS(230128) Complex Number (PDF 14) | Jp Park | 2023-01-29 | 0 |
| 70 | 70th LS(230125) Log (PDF 10) | Jp Park | 2023-01-26 | 0 |
| 69 | 69th LS(230116) AMC 8 final Review | Jp Park | 2023-01-17 | 0 |
| 68 | 68th LS(230111) AMC 8 (22 #14) 문제풀이 | Jp Park | 2023-01-12 | 0 |
| 67 | 67th LS(230107) AMC 8 (20 #17) 문제풀이 | Jp Park | 2023-01-08 | 0 |
| 66 | 66th LS(230104) AMC 8 (19 #13) 문제풀이 | Jp Park | 2023-01-05 | 0 |
| 65 | 65th LS(221230) AMC 8 (18 #13) 문제풀이 | Jp Park | 2022-12-31 | 0 |
| 64 | 64th LS(221221) AMC 8 (17 #14) 문제풀이 | Jp Park | 2022-12-22 | 0 |
| 63 | 63th LS(221217) AMC 8 (15 #22) 문제풀이 | Jp Park | 2022-12-18 | 0 |
| 62 | 62th LS(221214) AMC 8 (14 #19) 문제풀이 | Jp Park | 2022-12-15 | 0 |
| 60 | 60th LS(221130) AMC 8 (11 끝까지) 문제풀이 | Jp Park | 2022-12-01 | 0 |
| 59 | 59th LS(221127) AMC 8 (10 #20) 문제풀이 | Jp Park | 2022-11-28 | 0 |
