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




By: Drs. Marsigit M.A. dan Retno Siswanto, S.Pd
 Reviewed by: Kholida Agustin

During teaching learning process, the teacher should serve what the student need. During serving the student, the teacher never released from teaching method. There are so many teaching methods. But the teacher must smart to select which one is more effective (the method that relate with the factual event and involving the five sense).
The teacher can support student to use calculator to help their self understand about the materials. In the “negara maju” calculator have important rule during learning mathematics process. They use calculator start from elementary school until high education.
There are two type of calculator (look from the usage). They are ordinary calculator and scientific calculator. Ordinary calculator compute the result first by first depend on the input, meanwhile the scientific calculator compute by using mathematics rule.
In the teaching learning process, the teacher must teach and support how to use the graph calculator to solve the problem, because the basic problem is the student’s confuse about how to change mathematics language into calculator language (input data). 
There are some steps that can be done when calculator using as a tool of learning:
·         The first step is about understanding the importance of graph calculator
·         The second is understanding theory and using graph calculator to solve the equalities and inequalities problem
·         The third is enter the data to the calculator
·         The fourth is interpret the result in the calculator’s screen
·         And the last is make a conclusion  
Calculator can be learning tool during learning process. Calculator can help to understand the concepts, can help strengthen computation ability, and also make the problem solver more realistic. It will also effect to student’s desire to learn mathematics.

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