Put, Turn

BirdyFlies"He put me onto math.""He turned me onto math."

This makes no sense. What are you trying to say? Do you mean "meth", or math?

Hi,

"He put me onto math." He brought the subject of math to my attention.
"He turned me onto math." He made me think math is very interesting and exciting.

How are "put" and "turn" different?

How they slangy?

http://dictionary.cambridge.org/dictionary/british/put-sb-onto-sth.
Definition. to introduce a person to something or someone that could bring them an advantage. David put me onto a wonderful vegetarian cookery book.

I wonder if this is a common idiom in AmE.

dimsumexpressI wonder if this is a common idiom in AmE. For a quarter of a century, being thins country, I have never heard this idiomatic expression used.

I hardly ever hear it myself. It doesn't sound particularly American to my ear, but maybe it's used in other regions of the country more.

CJ

Thanks CJ, your words are good enough to clear my suspected ignorance.