APMOPS Explanation Video Compilation

高旭明

For the past 3 years, our teachers have recorded numerous videos on APMOPS and RMO questions in detail.
Below is a compilation of such APMOPS videos that we have in store.

APMOPS (Chinese Explanation)

Calculation
Complex Fractions https://www.youtube.com/watch?v=M1sEi2al1x0

Sum of Digits https://www.youtube.com/watch?v=phfpFWuLzXQ

Number Theory
Factors and Multiples https://www.youtube.com/watch?v=iCcemXdLaJ4

Divisibility Test https://www.youtube.com/watch?v=yBP2fsx5OKA

Insert Board Method https://www.youtube.com/watch?v=j9IMMUOQIAo

Place Value https://www.youtube.com/watch?v=fSA1N7X186U

Special Prime Numbers https://www.youtube.com/watch?v=llNWf3yqFLg

Euclidean Algorithm https://www.youtube.com/watch?v=fSA1N7X186U

Extremal Problems in Number Theory https://www.youtube.com/watch?v=Gaib773P4Oo

Remainder Problems https://www.youtube.com/watch?v=sUvm5wdEGqc

Diophantine Equations https://www.youtube.com/watch?v=-z9yodcZI1M

Short Division https://www.youtube.com/watch?v=e4678ju5V8I

Prime and Composite Numbers https://www.youtube.com/watch?v=6pgtSqcQxWI

Geometry

Regular Polygons and Sectors https://www.youtube.com/watch?v=bEOJRYlqu6M

Butterfly Model https://www.youtube.com/watch?v=PGFugNEpTa0

Area of Rotating Figure https://www.youtube.com/watch?v=DLmgnBKQDF4

Equal Area Transformation https://www.youtube.com/watch?v=RKWS6ewcEI0

Butterfly Model 2 https://www.youtube.com/watch?v=YBWaXptNGhA

Kite Model https://www.youtube.com/watch?v=vODpH7e2qrQ

Equal Height Model https://www.youtube.com/watch?v=DuEMYV_vj08

8 Model https://www.youtube.com/watch?v=osOUj9mUOo0

Angle Calculation https://www.youtube.com/watch?v=AOZntnSiP7w

Travel Problems

General Travel Problem https://www.youtube.com/watch?v=0ZemNTdcKB0

Counting

Figure Counting https://www.youtube.com/watch?v=xfsAihCP8_8

Counting Problem https://www.youtube.com/watch?v=1ActQ9nIww8

Figure Counting with Number Theorem https://www.youtube.com/watch?v=91DD0oVHohw

Combination and Permutation https://www.youtube.com/watch?v=3-b7HXE5ccQ

Thinking Backwards https://www.youtube.com/watch?v=9Wty2Hd4mYQ

Mixed Questions

Parity Analysis and Extreme Analysis https://www.youtube.com/watch?v=lQDPI1PoG80

Dyeing Questions https://www.youtube.com/watch?v=GfHpGe_mG5w

Number Table Problem https://www.youtube.com/watch?v=nw5PCgxPEq4