2 Resistance
G482 Electricity, Waves & Photons
2.1.1 Circuit
Symbols
Mr Powell 2012
Index
2.2.1 Circuit Symbols
(a) recall and use appropriate circuit symbols
as set out in SI Units, Signs, Symbols and
Abbreviations (ASE, 1981) and Signs,
Symbols and Systematics (ASE, 1995);
(b) interpret and draw circuit diagrams using
these symbols.
Mr Powell 2012
Index
cell
Indicator / light source
TASK: Link these symbols
to names & functions….
Low resistance, connect in series
resistor
No more semi circles!
thermistor
Electric motor
ammeter
High resistance, connect in parallel
Resistance falls as temp rises
Light emitting diode
Resistance falls as light level rises
Light dependent resistor
heater
voltmeter
diode
Variable resistor
Emits light when forward biased
of a specific value
Conducts when forward biased
Many cells = a battery
cell
Low resistance, connect in series
Indicator / light source
No more semi circles!
resistor
thermistor
Electric motor
High resistance, connect in parallel
Resistance falls as temp rises
ammeter
Resistance falls as light level rises
Light emitting diode
Light dependent resistor
heater
Emits light when forward biased
of a specific value
voltmeter
Conducts when forward biased
diode
Variable resistor
Many cells = a battery
Plenary Question….
...............
......
/.......
Basic
iSlice
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Connection
•
•
•
Connect your learning to the
content of the lesson
Share the process by which the
learning will actually take place
Explore the outcomes of the
learning, emphasising why this will
be beneficial for the learner
Demonstration
• Use formative feedback – Assessment for
Learning
• Vary the groupings within the classroom
for the purpose of learning – individual;
pair; group/team; friendship; teacher
selected; single sex; mixed sex
• Offer different ways for the students to
demonstrate their understanding
• Allow the students to “show off” their
learning
Activation
Consolidation
• Construct problem-solving
challenges for the students
• Use a multi-sensory approach – VAK
• Promote a language of learning to
enable the students to talk about
their progress or obstacles to it
• Learning as an active process, so the
students aren’t passive receptors
• Structure active reflection on the lesson
content and the process of learning
• Seek transfer between “subjects”
• Review the learning from this lesson and
preview the learning for the next
• Promote ways in which the students will
remember
• A “news broadcast” approach to learning
Mr Powell 2012
Index
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