Simplify the following text for a Grade 7 native English-speaking person.
Original: Ledger attended Mary 's Mount Primary School , in Gooseberry Hill , and later Guildford Grammar School , where he had his first acting experiences , starring in a school production as Peter Pan at age 10 .
Simplified: Ledger attended Guildford Grammar School , where he had his first acting experiences . He starred in a school production as Peter Pan at age 10 .