BRIDGEVILLE, Pa. — Two Pittsburgh high school teachers have been suspended without pay and face trial on theft charges for allegedly accepting discount groceries from a student who wanted better grades.

Attorneys for the teachers' said in a preliminary hearing Monday the teachers did not know Tom Weaver, 17, was not charging them full price for things they bought at the grocery where he worked as a checker.

School officials said they've found no evidence Weaver received a better grade as his part of the bargain.

Nevertheless, business teacher John Banaszak, 27, and math teacher John Gasbarrini, 26, will stand trial June 26 on charges of theft, conspiracy to commit theft and contributing to the delinquency of a minor.

Police and school officials said Ron Weismann, a manager at the grocery store, saw Weaver placing his hand over bar codes on some items when Banaszak was checking out.

The manager ran the items across the scanner again and discovered Banaszak had been charged only $10.53 for $31.37 worth of groceries.

"They are not thieves. They are not criminals. They're guilty of stupidity," said Timothy Wojton, Banaszak's attorney.

"It was him (the student) trying to ingratiate himself," said Bill Cercone Jr., Gasbarrini's attorney.

Police said the teen-ager told them he had discounted Gasbarrini about $80 on four shopping trips.

Weaver has not been charged.