The purpose of this study was to investigate the sources of foreign language
anxiety experienced by EFL teachers in the classroom. Two teachers were
enrolled in a public school of Purwokerto, participated in this study during their
teaching. The subject’s anxiety was investigated using interview and classroom
observation. The instruments constituted the focus in this study, and it was
described through three stages of data analysis, there were data reduction, data
display and conclusion drawing and verification. The result provided evidence
that the participants had experienced anxiety when they used English to their
students in certain conditions. The research findings showed that there were four
factors causing anxiey among teachers when they used English in the classroom.
The factors were as follows: 1) class preparation (classroom management,
teaxhing procedures and teaching and learning management), 2) students and
classroom profile (students’s attitude toward learning English and the number of
students), 3) self-confidence (worry about making mistakes and fear of English
speech in the classroom), and 4) physical condition (teacher in a bad health).