| 16 | 16th LS(200504) Ch.6.1 Perpendicular and Angle Bisectors(P30.. | Jp Park  | 2020-05-05 | 1 |
| 17 | 17th LS(200506) Ch.6.3 Medians and Altitude(P323) | Jp Park | 2020-05-07 | 6 |
| 18 | 18th Lesson(200511) Ch.7.4 Properties of Special Parallelog.. | Jp Park | 2020-05-12 | 2 |
| 19 | 19th LS(200513) Ch.8.4 Proportionality Theorems(P449) | Jp Park | 2020-05-14 | 2 |
| 1 | 1st LS(200311) Quadratic function Chapter review (P458) | Jp Park | 2020-03-12 | 2 |
| 20 | 20th LS(200518) Ch.9.5 The Sin and cosine(P500) | Jp Park | 2020-05-19 | 1 |
| 21 | 21th LS(200520) Ch10.1 Lines and segment(P532) | Jp Park | 2020-05-21 | 1 |
| 22 | 22th LS(200525) Ch10.5 Angle Relationship(P567) | Jp Park | 2020-05-26 | 1 |
| 23 | 23th LS(200527) Ch11.1 Circumference(P597) | Jp Park | 2020-05-28 | 2 |
| 24 | 24th LS(200601) Ch11.6 Volume of Pyramid(P638) | Jp Park | 2020-06-02 | 2 |
| 25 | 25th LS(200603) Ch12.2 Independent Event (P678) | Jp Park | 2020-06-04 | 1 |
| 26 | 26th LS(200608) Ch12.6 Binomial Probability (P712) | Jp Park | 2020-06-09 | 1 |
| 27 | 27th LS(200615) Ch1.4 Solving Linear Eqs (P33) | Jp Park | 2020-06-16 | 1 |
| 28 | 28th LS(200622) Ch2.4 Modeling with Quadratic Functions (P79.. | Jp Park | 2020-06-23 | 2 |
| 29 | 29th LS(200707) Ch3.3 Quadratic Eqs and Complex Number (P118.. | Jp Park | 2020-07-07 | 2 |
| 2 | 2nd LS(200316) finding zeros of functions(P478) | Jp Park | 2020-03-17 | 1 |
| 30 | 30th LS(200713) Ch4.1 Graphing Polyno,ial Functions (P159) | Jp Park | 2020-07-14 | 1 |
| 31 | 31th LS(200721) Ch4.3 Synthetic Divisions(P176) | Jp Park | 2020-07-22 | 2 |
| 32 | 32th LS(200728) Ch4.5 Solving Polynomial Eqs(P196) | Jp Park | 2020-07-29 | 2 |
| 33 | 33th LS(200804) Ch4.7 Transformations of Polynomial Function.. | Jp Park | 2020-08-05 | 2 |
