The warning has been issued by Welland Park Academy, which has almost 1,000 students, after the incident yesterday afternoon (Tue).
The boy, who was riding a scooter, said he was shadowed by the driver of a brand-new 2019-registered silver van as he rode home.
Police have now been told about the incident.
The school told parents: “The child has said that he was on his scooter.
“He crossed over Leicester Road at the Alvington Way crossing, at which point he noticed a silver van (no markings/company name, registered in 2019) was following him.
“The child turned on to a side street that was not his home street and the van turned in as well.”
They added: “The child then turned around and carried on up Alvington Way and the van reversed out of the side street and continued to follow him.
“The child then turned onto another road that leads to his home street further up and the van turned in behind him.
“When he turned onto his home street the van continued ahead and the child made it home safely and was not seen entering his house.
“The incident has been reported to the police.
“Can we ask all parents and carers to please have the Stranger Danger conversation with their children again.”