According to newspaper 20 Minuten, parents received a letter on Monday informing them that the teacher would be leaving her job at the end of the school year as she had failed to meet the school board's requirement that she find someone to look after her dog Minya during school hours.
Until now, the teacher had brought her terrier to school because its blindness meant it couldn't stay at home alone during the day.
Parents and pupils are dismayed at the decision, said the paper.
Posters put up at the entrance of the school demand that the teacher – and her dog – remain, while parents have handed out flyers reading ‘Fire a teacher appreciated by everyone? No!'
It's not the first time the teacher has been dismissed over the issue.
She was let go last summer, before pressure from parents persuaded the school to change its mind and allow the teacher to continue teaching with her Jack Russell in class, said the paper.
Contacted by 20 Minuten, the school said it was no longer possible for the teacher to have her dog in class, though she had the right to appeal the decision.