The education ministry estimates that between 20,000 and 80,000 new Ukrainian pupils will now start attending school.

The education ministry estimates that between 20,000 and 80,000 new Ukrainian pupils will now start attending school.
The measures were due to go into effect at the start of the new school year next week.
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New data from Łódź and Częstochowa show further declines in attendance at Catholic catechism classes in schools.
The school system had been prepared for a rise.
Potential problems, however, may emerge in larger cities, said education minister Przemysław Czarnek.
To allow long-term absences from PE classes, children will require an exemption issued by a specialist doctor, and not by a family doctor.
The government estimates that almost two million Ukrainian refugees are currently in Poland.
Up to 50,000 new teachers may be needed, says the head of the union, who has appealed for salaries to be raised.
The government hopes to tempt teachers out of retirement while local authorities are seeking teachers among Ukraine refugees.
Paweł Marczewski
Civil society organisations are well placed to support Polish schools as large numbers of Ukrainian children arrive.
The education ministry is seeking to draft in students to help translate for new Ukrainian pupils.
The president said that, while he agrees with some aspects of the law, the situation in Ukraine means now is not the time for such debates.
The education minister has ordered most children to learn online until the end of February.
Restaurants, bars, hotels, cinemas, theatres and places of worship will also have to further limit capacity, and nightclubs will close.