This is about simulation by using STELLA software:Prey-predator sample model

1. SIMULATION BY USING STELLA
SOFTWARE : PREY-PREDATOR
SAMPLE MODEL
SBI 3013
INFORMATION AND COMMUNICATION
TECHNOLOGY IN BIOLOGY
Aisyah Nazurah Binti Mohammad Tamizi
D20162075554
Kamilia Binti Salehuddin
D20162075561
Suzica Johnny Jusim
D20162075560

2. Model and Simulation
O Model
Representation of the construction and
working of a system.
To test the success of a system
To test the effect after system changes
O Simulation
Operation of model of a system.
Can be studied.
Can be improved.

3. Introduction about STELLA
O STELLA – System Thinking Experimental
Learning Laboratory with Animation
O Introduced by Barry Richmond ( 1985 )
O A software that can be used to stimulate a
system over time
O Through this software, we can see the
effect of a system in a model.
O Provide a practical way to visualize on
how complex system work.

4. The things that you need to
know before understanding
the graph.
O This ecosystem involve about 100 hectare oil
palm plantation
O Which consist of 138 oil palm tree per hectare.
O Each oil palm tree have 10 bunches.
O Whole total – 207, 000, 000 palm seed
O The prey is mouse ( Peter Pettigrew ) in pink
line
O The predator is owl ( Hedwig ) in blue line
O The red line is for the mighty oil palm tree

5. Graph 1
Mouse :
13,000
Owl :
10

6. Graph 2
Mouse :
20,000
Owl:
20

7. Graph 3
Mouse :
13,000
Owl:
5

8. Advantages
O It is the best picture to show how the system work over time.
O Provide risk free environment. Can repeat the experiment more than 1
time if they failed to get satisfied outcome. (The graph)
O Give the students motivation to approach the behavior of a system
without building the model.
O Simulation develops problem solving and higher thinking skills among
students
O Build up social manner among students and teacher through
interactions.
O Allow experiment exploration. ( Student can alter the provided
parameter and variables when using it)
O Avoid misconception with what their teacher want to teach. Especially
in science concept that most students cannot understand well.

9. Disadvantages
O The teacher need to have a deep learning
about this software before teach the students.
( Time consuming to explore the course
chosen )
O Some school lack of facilities and equipment.
O Students lack with manual science process
skills.
O Some of simulation need high cost to build up.
O Simulation may be error.