Pembelajaran Matematika Berbantuan Kalkulator: Studi Kasus Penggunaan Kalkulator Texas Instrument TI 89 pada PBM Matematika di SMK MUHAMMADIYAH IV YOGYAKARTA

By: Dr. Marsigit, M.A.

Reviewed by: Fikri Hermawan

In developed countries calculator to get an important role in the process of learning mathematics. This is indicated by the use of calculators in mathematics learning ranging from primary education to higher education. Not only that, research on the calculator is shown with the number of journals, books, conference reports and dissertations He was discussing the graphing calculator. The importance of a calculator is to bridge the arithmetic and algebra (Tenoch E. Cedillo; 2002:1).

Types of calculators had great development. Judging from use of calculator consists of two types of ordinary and scientific calculators calculator. Regular calculator is widely used in everyday life. According to this calculator, which is pressed first sign that will be done. Meanwhile, scientific calculators are widely used by high school students, teachers, or students to assist counting function. Scientific calculator has a way of working that follow the rules work in mathematics.

Stages use calculators as a learning tool in mathematics at SMK Muhammadiyah Yogyakarta IV, can be carried out as follows:

- The first stage is the stage of understanding about the importance of graphing calculators. The essence of understanding the process of explaining the basic and detail about the graphing calculator.

- The second stage is the stage of understanding the theory and use of graphing calculators in solving the problem equations and inequalities. The second process is focused on how students understand the command, symbolic manipulation, and graphs to solve equations and inequalities problems with graphing calculators.

- The third stage, the stage of entering data into kalkakulator about graphs. The process of entering data into the calculator about the process of moving the language into the language of mathematics in terms of graphing calculators.

- The fourth stage is the stage interpretation of the graphing calculator screen and draw conclusions.

From the research there are several aspects of the benefits of graphing calculators in mathematics learning are:

a)    The graphic calculator is useful to determine and match the graphic images

b)   graphic calculator is useful to determine the answers to the set and match penyelesaiaan

c)    The calculator graphs to provide a real experience of graphic images

d)   settlement about equations and inequalities can command, symbolic manipulation and graphics

e)    The calculator graphs useful to give answers that were previously calculated without a calculator and accelerate the completion of math problems