|
ORMC Meetings • 2020-2021 Academic Year
For meetings prior to Fall 2020, visit the Circle Archive. Advanced 1A | Advanced 1B | Advanced 2A | Advanced 2B | Advanced 3 | AMC10/12 Training | Beginners 1A | Beginners 1B | Beginners 1C | Beginners 2A | Beginners 2B | Intermediate 1A | Intermediate 1B | Intermediate 2A | Intermediate 2B | Olympiads 1 | Olympiads 2 | | 10/11/2020 | Many nontrivial Olympiad problems can be solved by angle chasing. This class we covered inscribed angles, cyclic quadrilaterals, and properties of the orthocenter. [Show less] | 10/18/2020 | Directed angles, incenter/excenter lemma, problems. [Show less] | 10/25/2020 | More advanced angle chasing problems [Show less] | 11/1/2020 | Power of a Point and Radical Axis [Show less] | 11/8/2020 | Harder problems with Power of a Point [Show less] | 11/15/2020 | Today we did three challenging problems whose solutions involved Power of a Point in a fundamental way. [Show less] | 11/22/2020 | We will introduce Ceva's Theorem, Menelaus' Theorem, the Extended Law of Sines, and some basic length formulas in a triangle. [Show less] | 12/6/2020 | Two proofs of Heron's Formula; Nine-Point Circle, Euler Line, Monge's Theorem [Show less] | 12/13/2020 | Simson line configuration (including proof that Simson(P) bisects PH) and incenter touch-point configuration. [Show less] | 1/10/2021 | We will go over the winter break geometry homework and review last quarter's material, and do some Olympiad problems from other subjects if time allows. [Show less] | 1/17/2021 | Complex numbers and AIME problems [Show less] | 1/24/2021 | [Show less] | 1/31/2021 | [Show less] | 2/7/2021 | [Show less] | 2/21/2021 | AIME Number Theory problems, which tend to be computational [Show less] | |
|
|
|
|
|