[1] The school is a branch of Wiedner Gymnasium with federally granted experimental status for gifted education of students in grades 9-12.

Admittance is based on the results at a battery of IQ tests conducted by an external institution.

[2][3] The Sir Karl Popper Schule was founded in 1998 by Andreas Salcher, Walter Strobl and Bernhard Görg.

[4] Students at the school are not required to follow the fixed national curriculum but are allowed to choose their own timetable.

Every student has to take the core subjects such as Mathematics, English and Science but is otherwise free to take elective courses according to their own interest.