YOU SAID:
you teach me and I'll teach you
INTO JAPANESE
教えて、教えてあげる
BACK INTO ENGLISH
Tell me and I'll tell
INTO JAPANESE
教えてください、私が教えてあげる
BACK INTO ENGLISH
Please let me know and I'll tell you
INTO JAPANESE
私に知らせてくださいと私はあなたを教えてあげる
BACK INTO ENGLISH
Please let me know and I'll tell you
That didn't even make that much sense in English.