| 64 | 63th LS(200928) 3.4 Quadratic Formula(P124) | Jp Park  | 2020-09-28 | 0 |
| 63 | 62th LS(200925) 직선의 위치관계와 각(동위각, 엇각) 시험대비 | Jp Park | 2020-09-25 | 1 |
| 62 | 61th LS(200923) 3.2 Complex Number(P107) | Jp Park | 2020-09-24 | 0 |
| 61 | 60th LS(200921) 3.1 Solving Quadratic Eqn(P100) | Jp Park | 2020-09-24 | 1 |
| 60 | 59th LS(200918) 2.2 Characteristics Quadratic Function(P62) | Jp Park | 2020-09-18 | 1 |
| 59 | 58th LS(200916) 2. Quadratic Function(P48) | Jp Park | 2020-09-16 | 0 |
| 58 | 57th LS(200914) 1 Parents Functions and Transformations(P7) | Jp Park | 2020-09-14 | 1 |
| 57 | 56th LS(200911) Rotation Symmetry | Jp Park | 2020-09-11 | 0 |
| 56 | 55th LS(200909) Transformation | Jp Park | 2020-09-09 | 2 |
| 55 | 54th LS(200907) Using Deductive Reasoning Problem solving | Jp Park | 2020-09-07 | 1 |
| 54 | 53th LS(200904) Using Deductive Reasoning to Verify Conject.. | Jp Park | 2020-09-04 | 1 |
| 53 | 52th LS(200831) Statements, Converse, Inverse, Contrapositio.. | Jp Park | 2020-08-31 | 1 |
| 52 | 51th LS(200828) Using Inductive Reasoning to Make Conjecture.. | Jp Park | 2020-08-28 | 1 |
| 51 | 50th LS(200826) Line Segment and Circle given length | Jp Park | 2020-08-26 | 1 |
| 50 | 49th LS(200824) Ch9.1 Pythagorean Theorem(p466) | Jp Park | 2020-08-24 | 0 |
| 49 | 48th LS(200821) Ch8.3 Triangle Similarity by SSS and SAS(p44.. | Jp Park | 2020-08-21 | 2 |
| 48 | 47th LS(200819) Ch8.1 Similar Polygons (p423) | Jp Park | 2020-08-19 | 1 |
| 47 | 46th LS(200814) Ch7 Review(p410) | Jp Park | 2020-08-15 | 0 |
| 46 | 45th LS(200810) Section 7.5 Properties of Trapezoids and Kit.. | Jp Park | 2020-08-10 | 0 |
| 45 | 44th LS(200805) Section 7.3 Proving That a Quadrilateral is .. | Jp Park | 2020-08-05 | 2 |
