The PTA is made up of three teachers and three parents, who act as representatives for all the teachers and all the parents. Their task is to support the school by thinking all sorts of issues through and participating in the decision-making process. There is a folder at school with the minutes of all their meetings. You are welcome to take a look if you are interested.
As well as contacting management or members of the team, you are welcome, as parents, to contact the PTA with questions about how things are done at school. Their email address is email@example.com. Emails sent to this address will go directly to the PTA.