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 : Ramadian Radite (09301244020)

Students still have problem to understand relation between aritmatic and algebra. According to Lee and wheeler, this problem came from student’s readiness to use algebra to solve algebra problem. In mathematics learning process, teacher must have scheme of learning. With the scheme, teacher expect to have systematics in teaching mathematics. So that teaching learning mathematics will be structured an systematic.
The type of calculator have been developt. From the utilization, calculator consist of two types. They are ordinary calculator and scientific calculator. Ordinary calculator commonly used in daily life. One of the scientific calculator is graphic calculator. Graphic calculator have some advantage, they are ability to solve mathematics problem quickly and display them graphical form. Another advantage is graphic calculator could make program that could solve mathematics problem.

Using calculator as teaching aid has some stage, they are:
1. Fisrt stage, understand the importance of graphic calculator. The essens of the understanding is explained in detail and basically about graphic calculator.
2. Second stage, understanding theorem and using graphic calculator to solve equality and inequality problem.
3. Third stage, entering data’s input of the problem to the graphic calculator. It is change mathematics laguange to graphic calculator language.
4. Fourth stage, interpretate of the screen on graphic calculator and make a conclution.
From this research, we know that there is some aspect of using graphic calculator in mathematics learning:
1. Graphic calculator can be used to determine and match graphic picture
2. Graphic calculator can be used to determine and match the answer of solution set
3. Graphic calculator could give real experience about graphic picture
4. Solving problem about equality anf inequality can use the command, manipulation of the symbol and graphic
5. Graphic calclutaor bermanfaat to give answer that calculate without calculator and mepercepat solving mathematics problem
6. Graphic calculator make learning mathematics be more interesting and it is easier to solve the problem
7. If using graphic calculator without ability to understand procedure of the operation and mathematical thinking, it can be cause addicted, losing self effidence, and lazy.
The constraint of the using graphic calculator is change mathematics languace to calcluator language and expressing calculator’s screen to the mathematics language