Abstract
Acquiring the language of the host country is an important factor that influences the process of integration of immigrants into society. For the children of immigrants, proficiency in the official language of their new country is crucial for their success and their smooth integration into the education system and the wider community.
This article analyses the Czech language proficiency of immigrant children enrolled in lower secondary schools in the Czech Republic and seeks to examine how their language skills develop over time and what factors impact the process of Czech language acquisition. The authors created a special diagnostic instrument to test students' communicative competence in a pilot study they carried out on a sample of immigrant children enrolled in selected lower secondary schools in Prague.
The findings of this pilot study confirmed that the linguistic distance between Czech and the students' mother tongue had a significant influence on how and how quickly they mastered the Czech language.