Saturday, 24 November 2012
Friday, 23 November 2012
Stella Report
Title :Pendulum story
Introduction :
Teaching and learning simulation
Simulation is
the imitation of the operation of a real-world process or system over
time. The act of simulating something first requires that a model be
developed; this model represents the key characteristics or behaviors of the
selected physical or abstract system or process. The model represents the
system itself, whereas the simulation represents the operation of the system
over time. A computer simulation
is an attempt to model a real-life or hypothetical situation on a computer so
that it can be studied to see how the system works. By changing variables in
the simulation, predictions may be made about the behavior of the
system. It is a tool to virtually investigate the behavior of the
system under study. Computer simulation has become a useful part of modeling many
natural systems in physics, chemistry and biology, and
human systems in economics and social
science which is also known as the computational sociology as well as in engineering to
gain insight into the operation of those systems. A good example of the
usefulness of using computers to simulate can be found in the field of network
traffic simulation. In such simulations, the model behavior will change each simulation
according to the set of initial parameters assumed for the environment. The
work builds on the established literature which highlights the importance of
activities which make implicit reasoning explicit teacher guidance which builds
upon pupils’ ideas and teachers interpreting shared experience to bridge the
gap between scientific conventions and informal ideas. Thompson, Simonson and
Hargrave (1996) defined simulation as a representation or model of an
event, object or some phenomenon. In science education a computer simulation
according to Akpan and Andre (1999) is the use of the computer to stimulate
dynamic systems of objects in a real or imagined world. Alassi and Trollip
(1991) describe simulations in educational context that is simulation is
a powerful technique that teaches about some aspect of the world by limitating
or replicating it. Students are not only motivated by simulations, but learn by
interacting with them in a manner similar to the way they would react in real
situations. In almost every instance, a simulation also simplifies reality by
omitting or changing details. In this simplified world, the students solves
problems, learn procedures, comes to understand the characteristics of
phenomenon and how to control them or learn what actions to take in different
situations.
Simulation
can integrate into teaching and learning because simulations support learning
by allowing a pupil to explore phenomena and handle experiments which would not
be feasible in school. Teachers can also focusing attention on underlying
concepts and relationships. Simulations offer idealised representations that
limit the range of operating variables to good effect. A teacher could focus on
just one aspect of a concept, and be sure of always getting a good clean graph.
Careful customization of resources might be needed to channel attention in a
particular direction. Teachers used ICT to ease and speed cumbersome tasks. This enabled
them to focus on the key ideas as well as making time available for discussing
results. Data loggers
displayed temperature readings so rapidly that pupils could analyse a pattern
in a cooling curve graph. Normally they might only draw the graph. Teachers reported how hands-on such as
simulation activities gave them time to interact with pupils. They could observe what was going on
as they circulated, engaging learners in discussion and addressing their
questions. Gathering information on pupils’ understanding is an important
feature of teaching. The computer display enabled them to gauge progress
readily. With a simulation, diagram or animation to hand, content was covered
more quickly. Again, not having to draw repeatedly on the board, or handle physical
apparatus, released time to concentrate upon learning, its consolidation and
assessment. Students can build knowledge by integrating technologies . Teachers
felt that technology could be used beside conventional practical experiments to
enable students to see what’s happening in the real world and what’s
happening on the microscopic scale as well. Teachers would employ a visual aid
or a practical demonstration in conjunction with a simulation. In some lessons
teachers used technology to relate lesson content to prior learning and to
reinforce that prior learning. This enabled students to engage with new
activities. For example, pupils
were expected to draw on graphical skills that had been developed in previous
years. This skills training also helped to guard against misinterpretation of
data logged graphs display and allowed pupils to make faster conceptual
progress. In science process skills, simulations can activate process skill of
students, which are the basic skills for scientific inquiry. These skills are
classified in two main groups which are basic science process skills and
integrated science process skills. Simulation can be used in distance learning
education. The computer simulation make science accessible, make thinking
visible, help students learn from each other and help students develop
autonomous learning. In this case, students must have enough control lab
equipment to start and stop an experiment and make appropriate adjustments. The
experiment should be no more difficult to conduct than with the equipment
physically present.
In
simulation, the students will get motivation to carry out the experiment, for
example we used stella, it can save our time and easy to do. We only need to
run the experiment by adjusting the knob to vary the parameters to see any
changes or differences between each parameters in the graph. So, when the
students start interested to learn, their motivation to learn in order to get
deep knowledge increase. Then, they can make prediction what will happen after
carrying out the experiment by using simulation.
The
latest simulation in school nowadays is simSchool. This in an alternative idea
for the preparation of teachers and the improvement of teaching which is
simSchool is a “flight simulator” for teachers in the form of a simulated
classroom game. The simSchool project addresses key systematic challenges of
teacher education including fundamental conceptions of teaching and learning,
organization of knowledge, assessment practices and results and engagement of a
global community of practice in teacher education. Simulations provide multiple
chances to practice and to learn and master new skills more rapidly and with
less effort tha through experiences not mediated by computers. In teacher
preparation, simulations that provide targeted feedback can develop teachers’
understanding and practice, and may be as effective as in classroom field
experience. Students who practice with a simulator develop a deeper
understanding because of their reliance on and experience of immersive
multimedia.
Stella
is System Thinking for Education and Research that offers a practical way to
dynamically visualize and communicate how complex systems and ideas really
work. Stella models provide endless opportunities to explore by asking “what if
“ and watching what happens, inspiring the exciting moments of learning. Stella
supports diverse learning styles with a wide range of storytelling features.
Diagrams, charts and animation help visual learners or students discover
relationships between variables in an equation. Stella is used to simulate s
system over time, jump the gap between theory and the real world , enable
students to creatively change systems , teach students to look for
relationships and clearly communicate system inputs and outputs and demonstrate
outcomes. The features os Stella are mappinmg and modeling, simulation and
analysis and communication.
Simulation
at school in Malaysia provide students to learn the subject in deep
learning. This is because they can understand about the topic that they learn
because they can observe thoroughly the experiment. Simulations can be used as
effective means for teaching or demonstrating concepts to students. The used of
graphics and animation help to build an interactive learning for
students. For examples the uses of computer simulations in science education
gives students the opportunity to observe a real world and interact with it. In
science classrooms, simulation can play an important role in creating virtual
experiments and inquiry. Problem based simulations allow students to monitor
experiments, test new models and improve their intuitive understanding of
complex phenomena. Simulations are also potentially useful for simulating labs
that are impractical, expensive , impossible or too dangerous to run.
Simulations can contribute to conceptual change and provide open-ended
experiences for students. It also provide tools for scientific inquiry and
problem solving experiences.
Objectives :
1) to understand the simulation that can integrate into teaching and learning.
2) to understand the stella which is important for teachers and students.
3) to understand the concepts of pendulum.
Results:
Figure 1 :normal
Figure 2 :mass of the ball
Figure 3 :initial displacement
Figure 4 :length of string
Discussion :
Simple pendulum is an excellent approximation of an isolated system. During its downswing, Earth’s gravity does work on the pendulum to transfer gravitational potential energy into kinetic energy .On the upswing, gravity transfers kinetic energy back into gravitational potential mechanical energy of constant. The pendulum is a body suspended from a fixed point so as to swing freely to and fro under the action of gravity. Its regular motion has served as the basis for measurement, as recognized by Galileo.Huygens applied the principle to clock mechanisms. Other applications include seismic instrumentation and the use by NASA to measure the physical properties of space flight payloads. The underlying equation is at the heart of many problems in structural dynamics. Structural dynamics deals with the prediction of a structure’s vibratory motions. Examples include the smoothness or bounciness of the car you ride in, the motion that you can see if you look out of the window of an airplane in a bumpy flight, the breaking up of roads and buildings in an earthquake, and anything else that crashes, bounces or vibrates. With this pendulum motion as point of departure, complex structures can be analyzed. The pendulum serves as an illustration of Newton’s Second Law, which states that for every force there is an equal and opposite reaction. The simpler experiments illustrate another of Newton’s laws,namely, that a body in motion continues in motion unless acted upon by another force. The pendulum offers an extensive array of experiments that can be done using easy to obtain, inexpensive materials.The measurements require no special skills and equipment. The graphical results of each experiment given, and can be compared to the results calculated from a simple equation if desired.
A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. When released, the restoring force combined with the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. A pendulum swings with a specific period which depends mainly on its length. When given an initial push, it will swing back and forth at a constant amplitude. Real pendulums are subject to friction and air drag, so the amplitude of their swings declines. The period of swing of a simple gravity pendulum depends on its length, the local strength of gravity, and to a small extent on the maximum angle that the pendulum swings away from vertical, θ0, called the amplitude. It is independent of the mass of the bob. If the amplitude is limited to small swings, the period T of a simple pendulum, the time taken for a complete cycle. For small swings the period of swing is approximately the same for different size swings: that is, the period is independent of amplitude. This property, called isochronism, is the reason pendulums are so useful for timekeeping. Successive swings of the pendulum, even if changing in amplitude, take the same amount of time. For larger amplitudes, the period increases gradually with amplitude. The three different types of oscillation that are free, damped and fixed oscillation. Free oscillations occur while the pendulum is sets to its displacement and is moving in its to and fro motion it does not experience any force that prevents it from continuing this motion. Such forces that prevent free oscillation is, air resistance. Damped oscillations occur while the pendulum is set to its displacement and is moving in its to and fro motion, experiences a force, or a medium that affects its motion. A forced oscillation occurs while an object is used to force or more pendulums into motion. An example of this is by using a driving pendulum to control the displacement of a set of 4 pendulums, which move as a result of the driving pendulum being displaced. Another example is using a vibrating tuning fork to force a stretched string to vibrate and set the pendulum into motion.
The aim of this experiment was to determine the factors that will affect the rate of oscillation of a pendulum, where oscillation is from the amplitude to the equilibrium to the amplitude. In order to find out the aim it is needed to find out the length, mass, or the amplitude, which are factors, that may affect the rate of oscillation. The mass can be tested by changing the mass added onto the string while keeping the length of the string the same, and the amplitude of the string the same, which is the amplitude is the distance from the equilibrium. In order to test the length, the mass and the amplitude are kept the same. And when testing the amplitude, the mass and the length are kept the same. For each of the factors tested the rate is needed to be calculated by figuring out the frequency and period. When the frequency is the number of complete oscillation in each second, and the period is the amount of time needed for one complete oscillation. The frequency is calculated by number of oscillation divided by the number of second in this case is 10 second. While the period is calculated by the number of second (10sec) divided by the number of oscillation. Once the pendulum starts to move, there are name for the aspects of its movement. The size of a swing is called the amplitude. The amplitude is measured in degrees, in which the same degrees that used to measure angles in geometry. One complete swing back and forth is called cycle . the time it takes for a pendulum to complete one cycle is called the period and the number of second is called frequency.
For the first graph is the normal one. During running the experiment, we do not change the parameter that is we only fix the mass of the ball which is the mass of the ball is 1.0 g , with initial displacement of 0.1 m and the length of the string is 1.0 m. The graph shown that the displacement or highest amplitude of the graph is 1.0 m with the gravity only. Then the parameter is changed with using the mass. The purpose that we manipulate the mass of the ball is we want to see the graph form and to know that whether the mass of the ball affect the period and frequency and amplitude of the pendulum motion. So after running the experiment, it found that the period, frequency and amplitude is same when the different mass are used. The mass that are used are 0.50 g, 1.50 g, 1.82 g and 2.0 g. the driving force for pendulum is gravity. If the pendulum has twice the mass, gravity pulls twice as hard. Mass is also how hard the ball resists the force it feels. A pendulum with twice the mass feels twice the pull, but also has twice the resistance to that pull. These two effects balance out. A pendulum with twice mass still experiences the same effect. The mass of ball does not affect how it moves. This is proven by the fact that in the equation v=2gh, the mass on both sides of the equation cancel each other out. For the second parameter we used initial displacement. The initial displacement 0.05 m, 0.12 m, 0.20 m and 0.12 m are use. When the initial displacement increase, the height of displacement also increases, the potential energy increases, so kinetic energy also increase but the time period remains same. For the third parameter, that is length of the string, with 0.5 m, 1.2 m , 1.6 m and 2.0 m. as the length of the string increases, so the period of the swing also increase. For the same linear amplitude, as the length increases, the displacement or height through which the ball also decreases. Hence, when the height decreases, the kinetic energy will decrease, so also causing the potential energy to decrease. Velocity therefore decreases. When the velocity decreases, time or period will increases. When the length is increased to be longer, the frequency slows. When the length is increased N times, the frequency decreases by 1√N.
Last but not least, simulation play an important role in teaching and learning. This is because, the motivation of students to carry out experiment increases. Students only need to changed the parameter in stella in order to see the graph. They also can understand about the experiment very well instead of carrying out the experiment not using simulation. Students can relate the variables that can be made during the experiment. The teachers can also guide them in order to carry out the experiment. After doing the experiment, the students can expect what they learn about the experiment. So, they can relate the experiment and theories very well.
Last but not least, simulation play an important role in teaching and learning. This is because, the motivation of students to carry out experiment increases. Students only need to changed the parameter in stella in order to see the graph. They also can understand about the experiment very well instead of carrying out the experiment not using simulation. Students can relate the variables that can be made during the experiment. The teachers can also guide them in order to carry out the experiment. After doing the experiment, the students can expect what they learn about the experiment. So, they can relate the experiment and theories very well.
Conclusion :
As a conclusion from the experiment, there are two factors that affect the period, frequency and amplitude of the pendulum. In this case, initial and length of the string affect the period , frequency and amplitude of the pendulum while the other parameter that is mass of the ball do not affect the motion of the pendulum. As the length of the string increases, the period of the swing also increases. , as the length increases, the displacement or height through which the ball also decreases. Hence, when the height decreases, the kinetic energy will decrease, so causing the potential energy to decrease, velocity therefore decreases. When the velocity decreases, time or period will increases. When the length is increased to be longer, the frequency slows. When the length is increased N times, the frequency decreases by 1√N. For the initial displacement, when the initial displacement increase, the height of displacement also increases, the potential energy increases, so kinetic energy also increase but the time period remains same. For the mass, it does not affect the motion of the pendulum. A pendulum with twice the mass feels twice the pull, but also has twice the resistance to that pull. These two effects balance out. A pendulum with twice mass still experiences the same effect. The mass of ball does not affect how it moves. This is proven by the fact that in the equation v=2gh, the mass on both sides of the equation cancel each other out.
Monday, 12 November 2012
STELLA in lab ICT
Stella
stands for Systems Thinking for Education and Research. The research and
education are most exciting when we used STELLA in order to create, experience
and see by ourselves the experiment. STELLA offers a practical way
to dynamically visualize and communicate how complex systems and ideas really work.
In the ICT
lab , we required to download STELLA and run the experiment. I was chose the
pendulum story and we need to make a report about the experiment that we run.
To run the experiment , we need to change the parameter in order to get the 4
different graph form and the first graph is we do not need to change any
parameter. Here are the result from the experiment. :
Sunday, 11 November 2012
Paint in LAB ICT
A.WATER LILIES
1 .Firstly, open PAINT and insert ‘water lilies’
picture by clicking OPEN:
2.Then ,choose SELECTION at the tool bar and make a
rectangle shape to the photo
3.Select CROP and the picture will be shown in
the rectangle form.
4. Select TEXT to insert the word ’water lilies’ and we can change
the colour of the text as we want.
5.Click SAVE AS the picture
B. Same goes as jackfruit, we just do the same step
as water lilies.
Saturday, 10 November 2012
SMART SCHOOL
TECHNOLOGY
AS ENABLERS CONTAINED IN SMART SCHOOL CONCEPT
One of the applications of technology in teaching and
learning process is self exploratory learning. In this case, the uses of
computer become very important part. This is because, students shall have
access to the latest materials available locally, as well as to external
resources. This process of learning provide the students to gain more knowledge
by themselves. They can search anything or information and knowledge on their
subjects. In this matter, learning will not only depends on teacher but
students must take initiative to involve and they will try and manage to
gain information by themselves. Others than that, students can access to the
homeworks assignments or materials. Usually , they only depends on the
reference books , but technology of Smart School able them to search
materials through internet. This is in order to broaden their mind with new
discoveries about the subjects that they learnt in the school.
Others than that, the technology also apply in
collaborative learning. This learning process involve computer supported. It is
a tool that facilitate group work within and across classes. The collaborative
learning support with computer take place via social interaction using a
computer or through the internet. This kind of learning is characterized by the
sharing and the combination of knowledge among the students in group by using
technology as the main means of communication. It can be implemented in online
and classroom learning environments. The goals of collaborative learning are to
improve the new knowledge of a person, construct the communication skill to
each other and help students to construct meaningfull learning rather
than individual learning. One of the common approaches to this kind of learning
process is collaborative writing. The process of planning and writing together
encourages students to express their ideas. Tools like blog and interactive
whiteboards can be used to share work,form idea and write smoothly. Interactive
whiteboard is a large interactive display that connects to a computer and
projector. A projector projects the computer’s desktop onto a board’s surface where the users control the computer using a
pen or finger. Others than the collaborative writing, there is also a
technology-mediated discourse that refers to debates and discussions. This
allows students that separated by time and distance to build knowledge
together. Students can do their exploring in an online environment or reflect
their experiences together through the internet. In this learning process, teachers
act as facilitator that monitor their students to facilitate learning. The
teachers must pay attention to the students that have a problem when involve in
online communication. The benefit of this collaborative learning based on
computer supported, is students can use technology to build learning found with
their friends.
Distance
learning is a medium that apply technology in teaching and learning process.
This field of education focuses on teaching methods and technology with the
delivering teaching to students who are not physically present in a classroom.
This is separated by time and distance. This kind of learning able the
communication with other students using technology such as video
conferencing,email,video-on demand. Actually, the types of distance learning
are divided into two, which are synchronous learning and asynchronous learning.
Synchronous learning is technology where all participants present at the same
time. It requires a timetable to be organized such as web conferencing and video
conferencing, while asynchronous learning does not require students present at
the same time that include message board forums, email , video , print
materials , voicemail and fax. This kind of learning enable students to keep
abreast of assignment when they are not physically in school. Parents can
also access the school for feedback on their children’s progress.
Others than
that, technology can apply in experimental learning. The use of software or
courseware helps the students to stimulate learning in experimental learning
process and very useful for drill and practice purpose, where it allows the
students to practice on their own or with their friends. Basically, the use of
courseware is basic in Smart School component. Courseware is part and parcel in
e-learning. E-learning is defined as learning with the aid of information and
communications technology tools. These may include the internet ,computer-based
technology or interactive television. This may also include the use of
technology to support traditional methods of learning for example electronic
whiteboards or video conferencing. In teaching process , teachers use
courseware so that it is more interesting , interactive and suitable to
use in classroom. The courseware that usually used are video, interactive
video, slide, audio, CD and pictures.
Technology can also used in Smart School in reference,
research and data collection. It is a tool to search, collect and collate data.
For examples , in library in Smart School, technology able the students to make
research on their subjects. They can search information or find out the
materials for their homework. Technology apply also in teachers room with
online access to courseware catalogues and databases and also information. It
is equipped with professional tools such as email. In the administration
offices, it is capable of managing databases of students and facilities and
distributing notices and other information electronically.
The technology will enable the school to draw on a
variety of external resources, while also making the school more accessible to
the community. Students and teachers will be able to tap into public and
university libraries ,investigate museums or other archives and keep up to date
with local authorities. Similarly, parents, students and other members of the
community can stay in touch with the school. Students can keep abreast of
coursework from outside of the school and while parents can monitor their
children’s
progress or communicate with teachers from home. People in the community can
also use the school as a centre for continued learning.
THE
PROGRESS OF SMART SCHOOL HAVE BEEN MADE SO FAR.
CHALLENGES CONCERNING
THE IMPLEMENTATION OF THE SMART SCHOOL CONCEPT
Parents should plays an important
roles in the Smart School development. There is the need to increase the
participation of parents in educational processes such as teaching-learning,
development of educational materials, assessment and many more. Parents
can be educational resources, and get benefit for themselves as their own
learning needs become a life-long effort. With the support from the parents,
students will be more motivated and this will lead to student’s delightful
performance. Parents should take part in student’s education and make sure the
students get exactly what the Smart School can give.
((2) TEACHER NEED MORE TRAINING ON ICT
PROGRAMS THAN THE STUDENTS
One of the challenges of
implementation of Smart School is teacher need more training on ICT programs
than the students. This training is done in order to achieve Smart School
mission. Besides, we know that teacher plays an important role in school as
primary deliverer of Smart School teaching. These teachers will need
intensive training on information technology skill and technology integration
into classroom instructions to enhance thinking and creativity. It is
important to ensure teachers capability to deliver
their curriculum. This training allows the teacher to explore a wide
variety of areas and strategies. Besides that, a continuous learning is also
necessary for teachers to develop their professional practices and in order to
be confident to keep in touch with technology. Moreover, teachers also need to
have ICT skills, thinking skill, educational values and language proficiency.
This is because teacher responsible to plan and prepare learning activities,
manage technology enriched environment, deliver effective instruction and
handle professional tasks. In addition, Smart School principals will also need
to go through an intensive management training course to equip them to manage
the new facilities, technologies and method to be used in Smart Schools. ICT
facilities are accessible for the school members even when the school is not in
session, the students are able to explore their studies at all the time.
(3) SMART SCHOOL STAFF DEVELOPMENT
The next challenge to make
the smart school implementation successful is not only students and teachers
cooperation but also the staff school must gets involved. Staff are the school
clerks, typists and office boy which also known as despatch boy. Cooperation of
clerical staff very important to ensure the Smart School management works
smoothly and systematic. Clerical staff must have qualification academic like
have IT knowledge which can gives easier to them to complete all documents and
works in Smart School. In addition, to give easier, clerical staff can also be
introduce to basic IT skills such as word processing and spreadsheet
applications. This is because in Smart School, all tasks such as school
finances, school communications and school inventories must be accomplished
with the aid of technology. So, all members of clerical staff would need to
know and understand how this office management is done. Most important thing is
the clerical staffs must have right attitude. Although like not necessary but if
the clerical staff is lazy, wasting time which spend for chatting and etc, no
wonder if expert in IT also did not help the implementation Smart School
successful
CHALLENGES AND ISSUES IN ICT APPLICATIONS
The teachers can improve their
ICT skills by attending courses, get use to ICT equipments and applications and
learn from the experience teachers. As we know, the requirement of teachers
which experts in handling equipment or ICT application increases as the smart
school interact with multimedia learning which equipped with school resource
centre, computer laboratory, classroom and school access centre. Nowadays, era
of information and communication technology (ICT) are increase rapidly, so it
is become part and parcel in the process of teaching and learning in schools.
So, to fulfill this requirement, the teacher must improve their skills in ICT
by attending courses that are conduct by government. Teachers must also get
used to ICT equipment and applications. Examples of ICT equipment that usually
use in the classroom is LCD projector and OHP .So , the teachers must be able
to set up these projector. Besides that, teachers should also know to apply the
application of ICT to their students, such as word processor, spreadsheet,
database and presentation. In order to excel in ICT , the teachers can also
learn from experience teachers. They can gain more knowledge about handling the
ICT equipment and learn more on how to apply the application in ICT.
RESUME
PERSONAL INFORMATION :
Name
:
Ayu Nadia Binti Mohd Zahid
EDUCATION BACKGROUND :
Primary school :
Secondary school :
Pra- University :
University :
COCURICULUM ACTIVITIES :
· Nasyid Competition (2004)
SKILLS :
· Can speak in Malay and English language
My Teaching Philosophy
My teaching
philosophy is to fulfill the students achievement in mental, physical, spiritual
and emotional. This is required to produce the best future leader in our future
soon. Since our country is rapidly developed so we need them to develop
harmony, and developing country. So I will force myself to teach them right
well so that they can excel in their life.
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