Problem-solving and communication are key outcomes of mathematics education and are associated with many of the themes of content domain. Behaviors are considered valid to be deducted from the items most subject areas. The following sections describe some of the content domains of mathematics. These results are formulated in terms of behaviors that must be deducted for items that exemplify the understanding and skills expected of students in each grade NUMBERING AND CALCULATION The number domain includes understanding the process of telling, ways of representing numbers, relationships among numbers, and number systems. In varying degrees, the school should have developed number sense and calculation fluency, understand the meanings of operations and how they relate to each other and be able to use numbers and operations to solve problems. The numbering and domain calculation requires the understanding and skills related to: Natural numbers Fractions and decimals Ratio, proportion and percentage Since the numbers natural provide the simplest introduction to numerical operations that are the basis for the development of mathematics, working with natural numbers becomes the foundation of mathematics in primary school. Use and order, all part relationship, ratio, reason, place value and relative empowerment and establishment, fractions, equivalence, decimal numbers, representing the straight.

Criteria for divisibility. Notion of the concept function. In the area of common fractions and decimal fractions, emphasizing the representation and translation between its forms, to understand the quantities represented by symbols and calculating and solving problems. The evaluation of the ability of school to work with the proportions is another critical component.