Thanks. They are good questions and I will ask them. It can't have been one teacher's idea, as I have two children in the same year, but different classes and different teachers, and they both gave me examples of questions they had been asked.
I don't want to seem paranoid, but I do come from the UK, where there are multiple government databases which hold information on children, including their responses to questions such as these at school. I fear Australia is heading in the same direction.