I was in the Orangeburg County, South Carolina, public schools from 1966 to 1972 (1st through 6th grade). We had a travelling music teacher for part of that time and, at least in 4th grade, our homeroom teacher taught us music using "Time for Sounds", an education television program on a UHF channel.

Some folk and folkish songs which I believe I learned in school are:

Senor Don Gato (Was a Cat)
Erie Canal
Hawaiian Rainbows (with hula motions!)
John Brown's Ford (Had a Puncture in It's Tire) (This was not in our
    books or on T.V. The teacher taught us this parody, and hand
    motions to go with it, on her own.)
Do Your Ears Hang Low (The same teacher taught us this one, also
    with motions.)
This Land Is Your Land (This Land Is My Land)
Aiken Brown
Ach, Du Lieber Augustine
Valeri, Valera (I Love to Go A-Wandering)
Frere Jacque
Goober Peas
The Rattlin' Bog
There's A Hole In the Bottom of the Sea
There's A Hole In the Bucket (Dear Liza)

There were other songs that I had heard from other sources, but which (I believe) we also sang or heard in school:
Cindy (Get along Home, Cindy, Cindy)
Oh, Susannah
She'll Be Coming 'Round the Mountain
Go Tell Aunt Rhody
John Henry
Swing Low, Sweet Chariot
Ezekiel Saw the Wheel
Where, O Where, Has My Little Dog Gone

Thanks, Mr. Happy, for encouraging me to ponder some happy memories.

Kent