| 80 | 80th LS(230919) Trigonometry Graph (PDF 422) | Jp Park  | 2023-09-20 | 0 |
| 79 | 79th LS(230918) Trigonometry (PDF 400) | Jp Park | 2023-09-19 | 0 |
| 78 | 78th LS(230912) Application of Equation (PDF 390) | Jp Park | 2023-09-13 | 0 |
| 77 | 77th LS(230911) Graph (PDF 377) | Jp Park | 2023-09-12 | 0 |
| 76 | 76th LS(230905) Inverse Function (PDF 325) | Jp Park | 2023-09-06 | 0 |
| 75 | 75th LS(230904) Binomial Expansion (PDF 309) | Jp Park | 2023-09-05 | 0 |
| 74 | 74th LS(230829) Proof (PDF 285) | Jp Park | 2023-08-30 | 0 |
| 73 | 73th LS(230828) Tangent and Normal Line (PDF 251) | Jp Park | 2023-08-29 | 0 |
| 72 | 72th LS(230822) Differentiation (PDF 230) | Jp Park | 2023-08-23 | 1 |
| 71 | 71th LS(230815) Binomial Distribution (PDF 212 #27) | Jp Park | 2023-08-16 | 1 |
| 70 | 70th LS(230814) Discrete Distribution (PDF 205 #6) | Jp Park | 2023-08-15 | 0 |
| 69 | 69th LS(230801) Probability (PDF 191) | Jp Park | 2023-08-02 | 0 |
| 68 | 68th LS(230731) Box and Whisker Plot (PDF 177) | Jp Park | 2023-08-01 | 0 |
| 67 | 67th LS(230725) Histogram (PDF 150) | Jp Park | 2023-07-26 | 0 |
| 66 | 66th LS(230724) Summarized Data (PDF 142) | Jp Park | 2023-07-25 | 0 |
| 65 | 65th LS(230718) Angles of Elevation and Depression (PDF 120) | Jp Park | 2023-07-19 | 0 |
| 64 | 64th LS(230717) 3D Geometry (PDF 100) | Jp Park | 2023-07-18 | 0 |
| 63 | 63th LS(230710) Graph of Function Exercise (PDF 73) | Jp Park | 2023-07-11 | 0 |
| 62 | 62th LS(230704) Graph of Function (PDF 66) | Jp Park | 2023-07-05 | 0 |
| 61 | 61th LS(230703) Geometric Sequence (PDF 39) | Jp Park | 2023-07-04 | 1 |
