Thus, the descriptions of the skills and abilities that form the cognitive domains and that will be assessed together with the content is presented in this framework in some detail. These skills and abilities must play a central role in the development of items and Striking a balance on the sets of items of different degrees of measurement objects. The behaviors used to define the theoretical frameworks of mathematics have been classified into four cognitive domains: Knowledge of facts and procedures Use of concepts Problem Solving Reasoning usual Different groups within a society, even among educators in math, have different views about the relative values of cognitive skills, or at least about the relative emphasis that should be granted in schools. The author believes that these are all important and testing will be used several items to measure each of these skills. The skills and skills included in each cognitive domain exemplify those who stated that they would expect schoolchildren in performance tests. It is intended to be applicable for all grades both measuring objects, although the degree of sophistication to the manifestation of behavior vary considerably between different grades. The distribution of items between knowledge of facts and procedures, using concepts, solving routine problems and reasoning also differs between grades. With the development of mathematical skills of the students with the interaction of experience, education and maturity, the curricular emphasis moves from relatively simple to more complex tasks. In general, the cognitive complexity of tasks increases cognitive domain to the next.