Her daughter thought he looked "suss" and wondered if there was "someone in the back of the van, is someone going to grab me?".
Mrs Burt said her daughter "ran for it" after her encounter with the man, and told her mother she felt "scared because she knew that he was a bit dodgy".
She then texted her mother to let her know what had happened. She was alarmed when she received the text from her daughter, Mrs Burt said.
"I was like 'oh no, what the hell is going on?' and sort of freaking out - it was quite freaky."
The incident has since been reported to police and to the Featherston Community Board.
After some initial qualms, her daughter has resumed walking to school, usually accompanied by her brother or friends.
It was important parents were aware of the incident, Mrs Burt said. "If they are under age, be safe and pick them up or make sure that they are with a friend."