Friday, June 8, 2012
Reflection-Modeling And Simulation
Firstly, what is modeling and simulation??? What their function to
the teacher and student???
Modeling and simulation (M&S) is the use of models,
including emulators, prototypes, simulators, and stimulators, either statically
or over time, to develop data as a basis for making managerial or technical
decisions. The terms "modeling" and "simulation" are often
used interchangeably. M&S is fast becoming a familiar term and
tool among students in the sciences, social sciences, and engineering. But it
is more than that. M&S is a discipline with its own body of knowledge,
theory, and research methodology. At the core of the discipline is the
fundamental notion that models are approximations for the real-world. Models
are created approximating an event. The model is then followed by simulation,
which allows for the repeated observation of the model. Analysis, the ability
to draw conclusions, verify and validate (V&V), and make recommendations
based on various iterations/simulations of the model, is the third component to
modeling. Simulation
software in a crop modeling course has enabled students to formulate, write,
and run crop models, thus supplementing their readings. Simulation software has
made possible active learning by providing hands-on experience with crop
modeling, thereby enhancing student learning.
I choose the bending of light as my
modeling and nuclear fission as my simulation. Based
on my experiencing, there are many advantages using these tools in learning
process. As student, I knew how difficult to understand any concept and process
of science when teacher only giving the explanation without using any teaching
aids like multimedia (simulation and modeling). By using these tools, the
teaching and learning process become active by providing hands-on experience to
the students. This condition generated the student –center learning and not
teacher-center anymore like traditional teaching. Besides that, simulation and modeling can
aid the teacher by quantifying experimental benefits and predicting outcomes
under new conditions, and assisting in deriving important experimental
estimates of parameters.
Follow my opinion by using
these tools, the student can insert those parameter values that he
thinks will produce a result which is of interest to him and he can devote his
attention to parts that interest him. The student can skip other parts or
aspects. This way he learns how to do experiment systematically. Besides that, student
can choose how he wants to approach a simulation experiment, how often he or
she wants to repeat the experiment and to which degree he or she wants to
intervene. As I knew, there are usually many ways to achieve the goals the
student has set himself.
Based on my
modeling about refraction I able to control the variables such as angle of
incidence and types of medium that known as manipulated variable. The angle of
incidence determines the angle of refraction which the lower the angle of
incidence, the closer the angle of refraction towards normal line. Besides
that, the different medium has different refractive index which movement a ray
from one medium to another medium caused the refracted ray bends away or bends
towards the normal line. There are many tools that can be used to measure and
analyze like light intensity, speed and wavelength of light. And according to my simulation about nuclear fission, I
can control the process of nuclear fission and chain reaction at any times
which allow me to observe and analyze the process slowly. I able to figure
out and understand how the nuclear reactor works by the movement of the control
rods and know how to relate the relationship between power outputs with energy
produced in nuclear reactor.
The usage
of modeling and simulation contribute many benefits in education especially to
students and teachers. Actually the teacher need know some of important steps
before using any model such as how to define the problem and
modeling/simulation goal, observe and analyze the real system, block diagram and
synthesize the model, mathematically formulate and implement the model, process
relevant data for variable and parameter estimates, verify and validate the
model, improve the model, simulate results using the model, and evaluate the
simulation results. For adequate use of this teaching tool, its limitations and
difficulties must be understood. In fact, modeling and simulation require
extensive communication between the modeler and his audience. Both the model
and the data for its implementation must be reproduced in such a way that other
researchers and teachers can duplicate the results and build upon its base.
Finally, modelers should retain a healthy skepticism of models, especially
their own, to ensure that they are evaluated adequately and used correctly.
As a conclusion, this software helps and guided me to
understand nuclear fission and bending of light topics quickly. So, I
interested to use these modeling and simulation in my teaching in my future as
a teacher.
Friday, June 1, 2012
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