Studi
Kasus Penggunaan Kalkulator Texas Instrument TI
89
pada PBM Matematika di SMK MUHAMMADIYAH
IV
YOGYAKARTA
Oleh
:
Drs.
Marsigit MA
(Dosen
pada Jurusan Pendidikan Matematika, FMIPA, Universitas Negeri Yogyakarta)
Dan
Retno
Siswanto SPd
(Guru
Matematika pada SMK Muhammadiyah IV Yogyakarta)
Summary
by Aris Kartikasari (09313244005)
learning
process is the process of communication between teachers and students with
certain conditions would be more effective with real experience with the use of
five senses. While the calculator can be viewed as a tool in learning.
The
calculator according to the E-dictionary (Wasito; 1996:83-94) is a special tool
to carry out the preparation of arithmetic with some datas and instructions are
included in calculator. Most of these tools require the intervention arms, which
can be used to implement calculation logic and digits. Benefits that can be explored
from the use of calculators in Mathematics Learning Strategies book Contemporary
(2001: 241-244) are: a) help in understanding mathematical concepts, b) help strengthen
the skills computation, c) develop high-level thinking skills, d) improve
problem solving skills, and e) make the solution problem more realistic. Merriweather
and Thrap (1999) stated that the use of graphing calculators in class can cause
a student to be affected and involved in mathematics, and can solve math
problems which these issues are not resolved at that time. Hambre and Desert in
their research entitled Effect of
held-held Calculators in pre- college mathematics education (1986) concluded
that: a) calculator should be used in any learning of mathematics, b) the
computer is helpful in improving problem-solving skills, especially for
students with low and high ability.
Mr.
Marsigit take a research about using calculators in SMK Muhammadiyah Yogyakarta,
and get the result:
1.
Calculators
as a tool
Stages
use calculators as a learning tool IV mathematics at SMK Muhammadiyah
Yogyakarta, can be done as follows:
The
first stage is the stage of understanding of the significance calculator graph.
The essence of the understanding process is explained in basic and detail about
the graphing calculator.
The
second stage is the stage of understanding the theory and use of calculators graphs
in equations and inequalities to solve problems. process
The
second is focused on how students understand the command, symbolic
manipulation, and graphs to solve problems and equations inequalities with
graphing calculator.
The
third stage, namely stage of entering data about the calcuator graph. The
process of entering data into the calculator about the process move 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.
Of
the five above process, can mean that students will experienced the process in
a row. This means that the process is an inductive process.
2.
Using
graphing calculator
From
research conducted, noting there are some aspects use the graphing calculator
in learning mathematics as follows:
·
Graphing
calculator is useful to determine and match graphic images
·
Graphing
calculator is useful to determine and match the answer set
·
Graphing
calculator to give you real experience of graphic images.
· Settlement
about equations and inequalities can be use the command, symbolic manipulation
and graphics.
· Graphing
calculator is useful to provide answers previously calculated without a
calculator and accelerate the completion of mathematics matter.
·
The
constraints experienced by students in using the calculator
· graph is a
mathematical paraphrase sentences into the languages calculator and disclose
any appearance of the calculator screen to in mathematical sentences
·
With the
graphing calculator in the learning process math lessons and math becomes more
attractive math problem solving easier.
· If using of
graphing calculators with no offset capabilities for understand the operating
procedures and mathematical thinking, it can be cause high levels of
dependence, loss their confidence, and lazy thinking.
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