I recall reading a rather short poem and I am looking for 
1) the title of this poem
2) the author
3) an online source where I can read it.  (--If you can't find an
online source but you own a print version of the poem, please type the
poem in your answer with proper indenation, etc.)

What I remember is that the poem addressed a female (the boy's
teacher, I think). The boy (narrator) mentions knowing of the French
tradition where one keeps an apple on the bedpost and will take a bite
to freshen one's breath the morning after. He concludes the poem by
saying something like, "I would keep an apple on my bedpost for you,
Miss _____." I don't remember her name, unfortunately.

If you absolutely can't find an online source of the poem, the title
and author will be sufficient, as well as the name of a book in which
the poem is printed.

Thanks very much! Redmango

Dear Redmango

Thanks for your question. I think the poem you are looking for is:

"In Second Grade Miss Lee I Promised Never To Forget You And I Never
Did" by Alberto Rios. Its closing lines are:

Miss Lee, I promised,
I would keep apples
For you. 

You can read it online at:

http://www.writersalmanac.org/docs/02_04_01.htm

(scroll down to FRIDAY, 5 APRIL 2002). There’s also a link to an audio
version.

Google search terms:

"keep an apple"  morning

Best wishes
blackbird-ga

Exactly what I wanted. Thank you very much.