Abstract
An experiment-based analogical pneumatic system model (PSM) was developed in this study for the purpose of teaching 5th grade students (11 years old) the variables that have an effect on the brightness of a light bulb in a simple electric circuit. Understanding the analogical relationship between source and target in teaching the variables that have an effect on the brightness of a light bulb in a simple electric circuit using a PSM. Understanding the analogical relationship between the effect on the brightness of a light bulb when the number of light bulbs is kept fixed but the number of batteries is increased and the effect on the size of an inflated balloon and the distance traveled by the rocket balloon when the number of balloons is kept fixed but the cycle of the air pump is increased. Understanding the analogical relationship between the effect on the brightness of a light bulb when the number of batteries is kept fixed but the number of light bulbs is increased and the effect on the size of the inflated balloon and the distance traveled by the rocket balloon when the cycle of the air pump is fixed but the number of balloons is increased. Key words: Brightness of a light bulb, a simple electrical circuit, pneumatic system model (PSM).
Highlights
The importance of electricity and its use in daily life are reasons that the topic of electricity is included in curriculum for students at early ages
Third stage: Using the pneumatic system model (PSM) to teach the effect on the brightness of a light bulb when the number of batteries is kept fixed and the number of light bulbs is increased. In this stage of the experiment-based PSM activity, a study will be made of the effects of keeping the number of batteries in the simple electrical circuit fixed while increasing the number of light bulbs
In a simple electrical circuit, the switch has to be closed for the light to turn on whereas in the PSM, the valve has to be open for the balloon to inflate
Summary
The importance of electricity and its use in daily life are reasons that the topic of electricity is included in curriculum for students at early ages. An experiment-based analogical pneumatic system model (PSM) was developed in this study for the purpose of teaching 5th grade students (11 years old) the variables that have an effect on the brightness of a light bulb in a simple electric circuit.
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