Problem Set: what 13-year old kids do in China

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In this note, I will provide a set of problems, all copied from my homework or test assignments. I am now 13 but I suppose there are some interesting problems in my homework anyways. Why not take a look?

Assumptions(all assumptions are made from the knowledge level of Secondary 1, which is Grade 7, in China)(Just to brag, I know integration now :) ) :

  • Imaginary and complex numbers do not exist.
  • There is no angle greater than 180180^\circ or less than 00^\circ. No angle equals 180180^\circ or 00^\circ.
    • This must be explained further:
    • Here OCOC bisects AOB\angle AOB while ODOD is not considered as a bisector at all.
  • Angle bisectors are rays. Rays, straight lines and line segments are to be STRICTLY DISTINGUISHED FROM ONE ANOTHER.

Part 1
Part 2
Part 3
Part 4
Part 5
Note created on 2021.3.11, three days to π day\color{#D61F06}\small \text{Note created on 2021.3.11, three days to}~ \pi ~\text{day}

Note by Jeff Giff
1 month, 1 week ago

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I think by rods you mean rays, maybe they teach a different terminology in China

Jason Gomez - 1 month, 1 week ago

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yup

Jeff Giff - 1 month, 1 week ago

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i edited that just now :)

Jeff Giff - 1 month, 1 week ago

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