My daughter is the youngest and smallest in her pre school class. There is a large boy in her class who punches her often that she is scared of. Appearently he likes to play with her. His way of playing involves punching. 
We had a virtual meeting with the head and her teacher. They said they were going to keep an eye on things. Today I found a slight bruse on my daughter's face and she said the boy punched and poked her face today. I was furious. However my daughter also said the boy punched another girl who actually was not in today. That introduced doubt in my mind. By the way I also received an email from school asking to accept a follow-up virtual meeting today. A bit of coincidence? I don't want to send an aggressive message to school in case the incident didn't happen today. Also I don't want the same thing to happen again. What would you do? Advice please.