McGuinty has written Ontario's four largest teachers' unions and the Canadian Union of Public Employees acknowledging that he's asking "a lot" of their members.
In declining the meeting, he writes the government must make choices to eliminate the $16-billion deficit if it wants to properly fund public schools in the future.
McGuinty says the wage freeze would allow the government to keep its cap on class sizes and finish rolling out full-day kindergarten, both of which require extra teachers.
Economist Don Drummond, who reviewed all government services, recommended the cap on class sizes be lifted and that full-day kindergarten, which will cost $1.5 billion a year, be eliminated.
McGuinty asked the teachers to keep talking, but at least one union, the Elementary Teachers' Federation, walked out of negotiations and is refusing to talk about the wage freeze.
The government also wants to eliminate the teachers ability to bank up to 200 sick days and then be paid out for them when they retire.
The teachers' and education workers' contracts all expire Aug. 31.
Earlier today, McGuinty announced he wanted to extend the wage freeze for members of provincial parliament until 2014, for a total of five years.