PENDEKATAN MATEMATIKA REALISTIK PADA PEMBELAJARAN PECAHAN DI SMP

Mathematics is a human activity (human activities) and must be linked to reality. Thus, when students do activities to learn math so in her place matematisasi process. There are two kinds matematisasi, namely matematisasi matematisasi horizontal and vertical. Matematisasi horizontal proceeds from the real world into mathematical symbols. While the vertical matematisasi is a process that occurs within the mathematical system itself, such as the discovery of a matter menyelesaiakn strategy, linking the relati g onship between concepts or applying mathematical formulas.

It required reflection activity to social activity that can occur integration and strengtheninof relations between subjects in the structure of mathematical understanding. In the curriculum development guidelines stated that learning mathematics can be started with an introduction to the problems in accordance with the situation (contextual problems). By asking the contextual issues, students are gradually guided to master math concepts. For example the purpose of learning fractions in school may be mentioned as follows:

1.                  Solve contextual problems and find the concept of numbers
rupture of the contextual issues are solved.

2.                  Understand the concept of numbers broke out, explain the link between concepts and apply the concept of numbers broke, flexibly, accurately, efficiently, and appropriately, in solving problems

3.                  Using the reasoning on the pattern and nature, to manipulate
and make generalizations about the numbers break.

4.                  Communicating the concepts and use numbers broken

                Competency Standards relating to learning fractions is to enable students to understand the properties of arithmetic operations and their use in solving number problems. By Material Basic form Numbers Integer and Glass then expected to be reached using two Basic Competencies are Perform arithmetic operations of fractions, and using the properties of arithmetic operations fractions in problem-solving.
Below is an example of development-related issues Realistic Numbers Fractions ynga used as a Discussion Materials For Teachers:

1.  Fraction sand shape
2.  Simple fractions and decimal fractions
3.  Changing Fractions to the numerator Greater Than Denominator Being Mixed

     Fractions
4.  Comparing fractions
5.  Reduction and summation
6.  Multiplication and division