The aim of this study is to find out academic risk-taking levels among secondary school students in Turkish lesson and determine if there is a relationship between their success in that lesson and risk levels. The study was carried out with blended method which combines qualitative and quantitative research patterns. Study data were collected from 450 secondary schoolers with convenience sampling. Data were collected by using the Risk of Academic Risk and Personal Information Form. Study data were analysed with descriptive and relational analysis techniques. As a result, a statistically significant relationship was found between academic risk-taking and achievement levels of students in the context of Turkish lesson. As their success level increases, their level of risk-taking also increases; and as success level decreases, the other decreases, too. It was found out that students' academic risk-taking is at medium level in Turkish lessons. This finding is supported by the rate of those hesitating to take academic risk and the rate of the positive views regarding Turkish lesson. Yet, no significant relationship was found between gender and academic risk-taking levels of students. However, the relationship between risk-taking behaviour and grade level was found to be significant.