Could someone explain this joke to me please

Question

. The New Teacher

George comes from school on the first of September.

"George, how did you like your new teacher?" asked his mother.

"I didn't like her, Mother, because she said that three and three were six and then she said that two and four were six too....."

I don't get it...

Answer 1

lol its an o joke.....kid comment!

Answer 2

i think he was confused about how six could be the answer to 2 different problems

Answer 3

I think that maybe he didn't like her because he had to think about what she said. that's what i think it means :)