My son is 8 and currently in a state school. He has recently been offered a place in a choir on condition that he gets into City of London School for Boys. He has some pre-assessment tests in Year 4 and depending on how they go, be invited to sit the 10+ entrance exams in Year 5 with a view to start in Year 6. Does anybody have an experience of what these pre-assessments are and how to prepare for them?