Academic dishonesty is recognised as a serious problem in Australia, and educators have been searching for ways to prevent its escalation. It is important to understand what factors influence cheating. This study used a sample of 446 grade 7 to 9 students, 160 from Macao and 286 from Zhuhai in China, to examine the personal and contextual aspects of academic dishonesty. The findings suggest that involvement and task orientation in the classroom environment (contextual aspects) and intrinsic value and utility value (personal aspects) are associated with students' attitudes toward the acceptability of cheating and cheating behaviour in mathematics. Some suggestions for reducing academic dishonesty are included in the paper.