This research aimed to examine the opinions of classroom teachers about the supplementary resource books distributed free of charge by the Ministry of Education in the 2022-2023 academic year in primary schools. Phenomenology, one of the qualitative research methods, was used in the research. Within the scope of the research, interviews were held with 20 classroom teachers working in primary schools. Looking at the research results, according to teachers' opinions; The explanation of the subject in the supplementary reference books is insufficient, the number of examples is low and they are above the student's level. In addition, the texts and questions in the supplementary resources are designed to be long and boring. According to teachers who compared the auxiliary resources distributed by the Ministry of Education with the auxiliary resources published by private publishing houses, private resources are more comprehensive in terms of question patterns, activity examples, attractiveness, and measurement and evaluation.

Auxiliary resource books, textbooks, teacher opinion, primary school.