head
Head of school
Matthew Horvat
Since July 2023, Matthew Horvat, previously head of school at The Overlake School in Redmond, Washington. As an undergraduate he studied history at the University of Pennsylvania, followed by a master’s in mathematics and teaching at Boston
ethos
Founded in 1951 by American journalist and former teacher Steven L. Eckhard, ASL started with just 13 pupils. Its current building (minus the security guards, bollards and bulletproof barriers) opened in 1971, when its fully carpeted, open-plan
teaching
School provides an American curriculum and offers Advanced Placement (AP) exams. In May 2025, 357 students took 1,020 AP exams in 32 subject areas, with 93 per cent scoring 3 or higher.
### Teaching & learning
ASL has long held a reputation as one of the top ‘college prep’ schools outside the US. Parents select it – often in contrast to the British system – because of its ‘pedagogy’. ‘We felt it was a child-centred education, looking to instil a love of
7:1
Pupil to teacher ratio View all data
20
Average class sizes View all data