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Anonymous No. 16089589

Why do American high school teachers do this?

Anonymous No. 16089593

>>16089589
Because you touch yourself

Anonymous No. 16089651

>start by assuming your desired conclusion
>carry out a series of logical steps ending in A=A
>make up arbitrary rules like "you can only work on one side of the equation" which ensure that the pseudo-proof can be trivially converted into a real proof by erasing the side you didn't work on
>never actually convert the pseudo-proof into a real proof, leave it in the nonsense form
>mark as wrong pseudo-proofs from students who envision more flexible ways of converting their pseudo-proof into a real proof, such as rewriting it in reverse order or putting "because" between each line