The 'It 'Aint Me Babe' singer has allegedly been dubbed the "weird man" by children in the class, in the Los Angeles suburb Calabas, where his son Jakob Dylan's child attends.
A source told the New York Post newspaper: "The kids have been coming home and telling their parents about the weird man who keeps coming to class to sing scary songs on his guitar.
"He's been visiting the school just for fun, but the kids don't appreciate they are in the presence of a musical legend.
"They just think of him as the weird guitar guy." Dylan is currently touring Europe on his 'Never Ending Tour'.
He plays at Berlin's Max-Schmeling-Halle tomorrow night (04.05.07).