In today's schools, students can be given high grades in examinations and class performance. High grades can lead to the problem of inflated grades. Inflated grades can lead to grade inflation. The subject of this study is to investigate the existence of high grades in primary school, secondary school and high school. The main purpose of the research is to reveal the existence, causes and consequences of high grades. The study group consists of teachers (n = 203) working in primary, secondary and high school educational institutions in Van. Case study design, one of the qualitative research methods, was used. According to the research results, the majority of teachers point out that inflated grades are given to cover up failures. According to the participants in this research, there is a problem of inflated grades at all levels of education. Likewise, inflated grades are common in both public and private schools.