Warsaw - Millions of Polish schoolchildren had a day off school Tuesday as teachers throughout the country went on strike.
Half of all schools had no classes, a spokesman from the Ministry for National Education said in Warsaw.
According to the teachers' union, ZNP, at least two thirds of the 30,000 schools and kindergartens were closed.
In the province of Swietokrzyskie, central Poland, 84 per cent of schools were on strike while in the southern city of Opole and in West Pomerania, north-west Poland, only
17 per cent were on strike.