| 1 | 1st Demo LS(190531) Normal Dist. and ETC | jp Park  | 2019-06-01 | 3 |
| 2 | 2nd Demo LS(190601) Binomial Dist. and ETC | jp Park | 2019-06-02 | 5 |
| 3 | 1st LS(190602) Mean, Margin error, Design Experiment | jp Park | 2019-06-03 | 5 |
| 4 | 2nd LS(190603) Confidence Interval & Its Application | jp Park | 2019-06-04 | 26 |
| 5 | 3rd LS(190605) Polynomial Ftn & Gauss Ftn | jp Park | 2019-06-06 | 38 |
| 6 | 4th LS(190606) Question about combination, Inverse, Absolute.. | jp Park | 2019-06-07 | 46 |
| 7 | 5th LS(190607) Instantaneous Sploe, Rational Ftn, Log Ftn | jp Park | 2019-06-08 | 47 |
| 8 | 6th LS(190608) Probabilty & Application of Normal Distributi.. | jp Park | 2019-06-09 | 5 |
| 9 | 7th LS(190609)Conditional Probabilty & Its Application | jp Park | 2019-06-10 | 21 |
| 10 | 8th LS(190615) Synthetic Division, Factoring | jp Park | 2019-06-16 | 4 |
| 11 | 9th LS(190617)Trigonometric Ftn, sin law, cos law | jp Park | 2019-06-18 | 1 |
| 12 | 10th LS(190619) Normal Distribution, E(X), V(X) of discrete .. | jp Park | 2019-06-20 | 26 |
| 13 | 11th LS(190622)pascals triangle, binomial theorem, descartes.. | jp Park | 2019-06-23 | 55 |
| 14 | 12th LS(190626) Rational Function, Asymptotes, Graph | jp Park | 2019-06-27 | 17 |
| 15 | 13th LS(190629) Apex Learning - Practice Assignment+log 정의 및.. | jp Park | 2019-06-30 | 15 |
| 16 | 14th LS(190702) Geometry Series + Trigonometry | jp Park | 2019-07-03 | 19 |
| 17 | 15th LS(190706) Trigonometry Function Graph(sin, cos, cot, s.. | jp Park | 2019-07-07 | 2 |
| 18 | 16th LS(190710) Triangle Question+Draw Trigonometry Functio.. | jp Park | 2019-07-11 | 1 |
| 19 | 17th LS(190713) Sine and Cosine Law and its Application | jp Park | 2019-07-14 | 1 |
| 20 | 18th LS(190717)Trigonometry Identity | jp Park | 2019-07-18 | 2 |
