Doing the problem for him doesn't help him learn. :tongue2: For example, it takes away from him the possibility of figuring out on his own that he could look at the algebraic expression W or X or Y or Z, and figure out that he can group them in pairs, then turn the result into a circuit. These things are much better learned by working it out yourself than being handed the answer.
hi. thank you. i am thinking of that way too but wouldn't that require 3 get instead of 2?