CTU secretary Joseph Stalin questions as to how the minister could say so after visiting schools during the strike.
The director of national schools is giving telephone calls and asking for the attendance registers from schools, he says.
Also, a gang led by assistant director Priyantha Padderiya had thrown stones at the protestors.
Stalin accuses the minister of completely politicizing education.
He has given appointments to persons from his electorate Kuliyapitiya, and the ministry has deployed a special bus to transport them, according to him.
Also, he has appointed his henchmen as nonacademic staffs in school libraries and laboratories, in order to gain more votes at elections, he charges.
Stalin says teachers will stay away from examination duties from August if their demands are not given within 14 days.
Meanwhile, deputy president of the education administration service trade union Neil Athukorale told the media that the minister was giving more than 1,000 appointments and promotions in the education sector for alleged political victims.
He said their strike action has been a 90 per cent success, despite claims to the contrary by the minister and his henchmen.
Attempts to contact the minister for a comment failed.