On the contrary, students with a "fixed" mind set see their level of intelligence as immutable. They are mainly concerned with proving that they are intelligent, or hiding that they are not. Therefore, they tend to avoid situations in which they could fail. They do not recover well from setbacks and prefer tasks that they can already do well, avoiding challenges that could lead to mistakes. For example, a good student can move away from hard subjects, such mathematics and science, to keep up with their level of achievements, in fear of failures.