PHILADELPHIA (CBS) – Negotiations continue as a central Montgomery County school district tries to avoid a teachers’ strike.

Teachers in the Perkiomen Valley School District could be on the picket line as early as Tuesday if a deal isn’t reached by Monday night.

The Perkiomen Valley Education Association gave a 48-hour strike notice Friday.

Union officials and school district officials say they’re continuing negotiations this weekend at an undisclosed location.

Jeffery Sultanik is the lawyer representing the school board in negotiations. He talks about the sticking points, “…salary, health care benefits, tuition reimbursements and a few other issues.”

Teachers in the 5,900 student district have been working without a contract since the beginning of the school year.

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Reported By John McDevitt, KYW Newsradio.