In both cases, these types of schools were considered to be instrumented of ethnic assimilation (Polonization[1] and Germanisation[2] respectively.)
In Poland, some other utraquist schools taught in Polish and Yiddish languages.
[3] An account traced the root of the utraquist school to the concept called revelatio, which denotes an insight drawn from ancient authorities and texts.
[4] The use of the utraquist model, however, declined for several decades due to the policies that ban compulsory second language use in the classroom.
[5] The concept was reintroduced in a different form, the Content and Language Integrated Learning or CLIL.