| 221 | 220th LS(200530) Ch11.3 Area of Polygon(P312) | jp Park  | 2020-05-31 | 1 |
| 222 | 221th LS(200601) Ch11.7 Surface Area(P642) | jp Park | 2020-06-02 | 0 |
| 223 | 222th LS(200603) Ch12.2 Independant Event(P677) | jp Park | 2020-06-04 | 0 |
| 224 | 223th LS(200606) Ch12.2 Independant Event(P679) | jp Park | 2020-06-06 | 2 |
| 225 | 224th LS(200608) Ch12.4 Probability of Overlapping Events(P6.. | jp Park | 2020-06-09 | 1 |
| 226 | 225th LS(200610) Ch12.6 Binomial Distribution(P710) | jp Park | 2020-06-11 | 1 |
| 227 | 226th LS(200613) Ch1.3 Modeling With Linear Regression(P27) | jp Park | 2020-06-14 | 1 |
| 228 | 227th LS(200615) Ch1.4 Solving Linear Eqs(P33) | jp Park | 2020-06-16 | 1 |
| 229 | 228th LS(200617) Ch1 Linear Function 연습문제 (P43) | jp Park | 2020-06-18 | 0 |
| 230 | 229th LS(200619) Ch2.1 Transformations of Quad Function (P51.. | jp Park | 2020-06-20 | 0 |
| 231 | 230th LS(200620) Ch2.2 Characteristics of Quad Function (P63.. | jp Park | 2020-06-21 | 0 |
| 232 | 231th LS(200622) Ch2.3 Focus of Parabola (P69) | jp Park | 2020-06-23 | 1 |
| 233 | 232th LS(200624) Ch2.4 Modeling with Quadratic Functions(P82.. | jp Park | 2020-06-25 | 2 |
| 234 | 233th LS(200626) Ch3.1 Solving Quadratic Functions(P101) | jp Park | 2020-06-27 | 1 |
| 235 | 234th LS(200627) Ch3.3 Completing Square(P114) | jp Park | 2020-06-28 | 0 |
| 236 | 235th LS(200629) Ch3.4 Using Quadratic Formula(P130) | jp Park | 2020-06-30 | 1 |
| 237 | 236th LS(200702) Ch3.5 Solving Nonlinear Systems(P135) | jp Park | 2020-07-02 | 0 |
| 238 | 237th LS(200703) Ch3.6 Quadratic Inequalities(P140) | jp Park | 2020-07-04 | 1 |
| 239 | 238th LS(200704) Ch3.6 Quadratic Inequalities(P146) | jp Park | 2020-07-05 | 0 |
| 240 | 239th LS(200706) 과제풀이 | jp Park | 2020-07-07 | 0 |
