In the mathematics section of their website they state that “These standards define what students should understand and be able to do in their study of mathematics. But asking a student to understand something also means asking a teacher to evaluate whether the student has understood it. But what does mathematical understanding look like? One way for teachers to do this is to ask the student to justify, in a way appropriate to the student's mathematical maturity, why a particular mathematical statement is true or where a mathematical rule comes from” (Common Core). They believe that having a uniform way of doing things will eliminate the possibility of errors and confusion. It will ensure that teachers at all grade levels teach the same processes and that students get the correct answers by the correct means. The standards go into more depth about what exact skills should be acquired and to what degree