The research was conducted to determine the opinions of students (10-11 years) on their engagement to mathematics course. These students are 5th grade students at a secondary school in Turkey. Qualitative research method was used in the research. At the study, designed as case study, a total of seven secondary school students were participated the research. The study group was constituted with "snowball sampling" technique of purposeful sampling methods. The data was collected by a semistructured interview form. Sixteen-page interviews obtained from the interviews were transferred to the computer. Data analysis was performed in content analysis. Codes were listed as a result of analysis. Common themes were constituted from the codes. As a result of the research, three themes, (cognitive, social and emotional engagement) eleven sub-themes and eighty nine codes were determined. It was seen that the students' most preferred superficial strategies in terms of cognitive engagement; negative opinions towards group work in terms of social engagement; value given to math course in terms of emotional engagement. Students preferred least getting support sub-theme in terms of cognitive engagement; competitive sub-theme in terms of social engagement; value to the mathematics teacher sub-theme in terms of emotional engagement.