This document summarizes a workshop for elementary teachers focused on hands-on learning about electricity concepts. The workshop was funded by a grant and presented by two professors. It included pre- and post-assessments, demonstrations of circuits and electricity topics, hands-on activities with materials like Snap Circuits kits, and discussions on implementing the new strategies and technologies in their own classrooms. The overall goal was to increase teachers' content knowledge of electricity and models of teaching that incorporate investigation, technology, and active learning.
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Ccps electricity workshop(1)
1. Electricity
Using Hands-on Technology to Energize Elementary Teachers Physics Instruction
August 2, 2017
Presented by Dr. Dena Harshbarger & Dr. Mariana Lazarova
Funded by Grant received from Nebraskas Coordinating Commission for Postsecondary Education (CCPE)
2. When the best and the brightest come together, the possibilities
are endless.
We are so glad you are here!
7. How do you feel about teaching science?
Love it!
It makes me
nervous
and/or
its not my
favorite.
Its Okay.
8. Would you rather, Learn by.
Hands-on
Doing
Talking
Discussion
Writing
and/or
Drawing
9. Overview of the grant project
1) Tuesday, August 2nd: Workshop #1 Electricity
On-line Module 1: Electricity
1. Teach electricity and/or use technological tools from todays workshop in your classroom
2. Submit your reflection about the experience
2) Tuesday, November 2: Workshop #2 Laws of Motion
On-line Module 2: Laws of Motion
1. Teach Laws of Motion and/or use technological tools from todays workshop in your classroom
2. Submit your reflection about the experience
3) Tuesday, February ___: Workshop #3 Light/Optics
10. Goals OF THE WORKSHOP
SUBJECT MATTER KNOWLEDGE
Increase your knowledge of electrical concepts
Electrical discharge
Series and parallel Circuits
Conductors and insulators
Transfer of energy
Current, Resistance, Voltage...
11. pedagogical knowledge
Teaching practices that enhance science instruction
1) Incorporate hands-on investigations
Snap Circuit Kits
Bulbs, batteries, and wires
2) Incorporate technology
Plickers
Kahoot
PhET simulations
Apps
3) Actively engage students in collaborative learning
Move to Side of Room
Stand-Up, Hand-Up, Pair Up
Walk and Talk
Numbered Heads Together
12. Most importantly...
Enjoy the Learning Experience
Take comfort breaks as needed
Ask questions
Share ideas
Share answers. Dont be afraid of
being wrong.
15. Science logs/journals
develop learners scientific process skills (i.e., predicting,
inferring, observing, recording and analyzing data/results,
and communicating)
help students process & recall information
serve as study guides and/or student resources
can be used to assess students understanding
***Please use your science log throughout the day and
consider how you can use journals with your students.
17. Safety precautions:
Avoid placing materials near your mouth or eyes.
Electrical outlets are off-limits.
Disconnect wires when not in use.
Let go of the battery if you feel it getting warm.
Be aware of sharp objects such as wires.
Use materials appropriately.
18. Challenge: Light the bulb
How can you make the bulb light using
only a bulb, a D-cell battery, and a wire?
Record/draw your attempts in your
science log.
If time allows, find more than one way.
19. Table talk
Share your discoveries at your Table
*brightest colored shirt shares first
How do your responses compare?
20. Which circuits will light the bulb?
Based upon your previous experience, predict
which circuits will light.
Draw a star by the circuits you predict will light the bulb.
21. Kahoot:
Which circuits will light the bulb?
Based upon your previous experience, predict
which circuits will light.
Go to Kahoot It! https://kahoot.it/#/
Enter PIN NUMBER: ____________
22. Now, try it: Which circuits light the bulb?
In Pairs: Use materials to test your predictions.
Record the results. Color the bulb yellow if it lit up.
23. Categorize: Which circuits will light the bulb?
Sort the circuits into those that light the bulb and those that
dont light the bulb.
What do the circuits that light the bulb have in common?
How could you fix the others so they would light the
bulb?
Light
the
bulb
Do not
light the
bulb
24. Table talk
Share your discoveries at your Table
*tallest person shares first
How do your responses compare?
Are there any discrepancies? If so, why
do you think you got different results?
26. Electric charge
Objects are made of atoms
and those have positive and
negative charges
Objects can be
0 electrically neutral (zero
charge)
+ positively charged, or
- negatively charged
Like charges repel
Opposite charges attract
Niels Bohr
model of the
atom
electrons (-) are 2000x
more massive than
protons (+)
Physics
review
27. How do you charge an object? PHET Simulations Demo
https://phet.colorado.edu/sims/html/balloons-and-static-electricity/latest/balloons-and-static-electricity_en.html
CHARGING BY CONDUCTION (direct contact)
1) Rubbing materials together TRANSFERS ELECTRONS
from the atoms of one object to the other object
Example: the balloon acquires electron from the sweater
when rubbed and becomes negatively charged
2) Touching a charged object to a neutral object
makes them share charges equally
Example: Touching negatively charged rod to
neural metal sphere transfers half the extra
electrons to the sphere
Physics
review
28. How do you charge an object?
3) CHARGING BY POLARIZATION (no contact!)
Bringing a charged object close to a neutral object
REDISTRIBUTES the ELECTRONS inside the neutral
object.
The neutral object is still electrically neutral.
Example: charge a balloon by rubbing it on your hair
and see how it sticks to the wall why?
wall
-
-
-
+
+
+
NOT
touching!
Physics
review
29. Electricity
Electricity = Charge flow
Current is the flow of charge,
pressured into motion by voltage and
hampered by resistance.
Physics
review
30. Think about it.
Walk and talk
Why would
charges flow?
*whoever woke up earliest
shares first
31. Draw the circuit
diagram for this
simple circuit in
your notebook using
the electrical
symbols (slide 11)
Compare with your
neighbor; discuss
differences
Lets build some circuits!
32. Snap circuit kits
Take some time to explore one of your kits
You will each receive 5 kits to keep and use in your
classroom.
36. Law of Conservation of Energy
energy is never created or destroyed,
only converted from type to another
Gravitational
Potential
Energy
Electric
Potential
Energy
Kinetic
energy
(i.e., motion)
Kinetic
energy
(i.e., motion)
Physics
review
37. WATER FLOW analogy for ELECTRICITY
What flows? What flows?
Current is the flow of charge, pressured into motion by voltage and hampered by resistance.
Identify the
analogy for
Voltage,
Current,
Resistance
here!
Discuss with
your
neighbor.
Physics
review
38. FOOD FOR
THOUGHT
What carries the
energy that makes the
light bulb turn on?
A) The voltage
B) The current
C) The electrons
D) The electric field
How do we USE electricity?
Hint: Energy!
Physics
review
39. Think about it.
Stand-up, hand-up, pair-up
How does Project #1 compare to Project #2?
-Similarities
-Differences
40. Think about it
Stand up, hand up, pair up
Predict what will
happen to the
brightness of the bulb
if we add another
bulb to the circuit.
Draw & explain your
prediction.
41. Build series circuits
1. Create a series circuit with 2 light bulbs. Assess
the brightness of the bulbs.
2. Create a series circuit with 3 light bulbs. Assess
the brightness of the bulbs.
3. What happens if you remove a bulb from a series
circuit?
Record/draw your attempts in your science log.
42. RECALL: Circuits in Series & in Parallel
Series:
Current is the same
Resistance adds
Voltages add to battery
voltage
Parallel:
Current splits
Resistance adds in complex way
Voltages are the same
Water analogy:
Current => Water flow
Voltage => Height
Resistance => Wheels
Physics
review
43. Circuits in Parallel
Voltage is the same
Current splits up
Height is the same
Water flow splits up into two pipes
Water analogy
Physics
review
44. Think about it.
Predict what will
happen to the
brightness of the
bulb in a series
circuit if we add a
fan from our kit.
Draw and explain
your prediction.
45. think-pair -share
Share your discoveries with your partner
*shortest hair shares first
How do your responses compare?
47. Current => Water flow
Voltage => Height
Resistance => Wheels
Explain to your neighbor
the Fan + Light circuit
using the water flow analogy!
Physics
review
48. Use the SerialBulbsLite app to build series circuits.
*Record/draw your attempts in your science log.
50. What is a Resistor?
(Discover that you already know!)
(ANSWER INTUITIVE)
1. What does the word resistance mean to you?
2. Give an example of resistance from everyday life.
3. How would a resistor with HIGH resistance compare to one with
LOW resistance?
4. Explain HIGH and LOW resistance with the water flow analogy!
Physics
review
51. think-pair -share
Can you conclude what an electrical resistor
does in a circuit?
Share your thoughts with your partner
*longest hair shares first
52. What does Resistance depend on?
Answer with example: Do wires have Resistance?
Circle:
1. The resistance of a THICK / THIN wire is HIGH / LOW.
2. The resistance of a LONG / SHORT wire is HIGH / LOW.
3. The resistance of a DENSE / LOW-DENSITY wire is HIGH / LOW.
4. The resistance of a HOT / COLD wire is HIGH / LOW.
Physics
review
54. LEDs are semiconductor light sources
What does that mean?!
Lets figure it out by recalling what we already know:
What is a Conductor? (Hint: Why dont we make wires from
plastic?)
What is a Superconductor? (A lot of hype about them! Why?)
What is a Semiconductor? (Put it all together)
LED = Light Emitting Diode
Physics
review
55. Conductor vs. Insulator
If all things are made of
atoms, why do some
materials conduct electricity
and others do not?
The electrons in the atoms of
insulators are not free to move!
Conductors have free (or
loosely-bound) electrons that can
move!
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Physics
review
57. Predict which objects will complete the circuit.
1. Move to a side of the room to show your
prediction about each item in Mystery Bag.
2. Take turns testing each Mystery Bag item.
3. Record the results in your science log.
Completes Circuit Does Not Complete Circuit
58. think-pair -share
What do the items that complete the circuit
have in common?
What do the items that do not complete the
circuit have in common?
*lightest colored hair shares first
59. Think about it.
Walk and talk
What does the word
parallel mean?
What do you think
a Parallel Circuit
would look like?
60. Build a parallel circuit
Build parallel circuits using 2 bulbs, 4 wires,
and a battery.
61. Parallel circuits
What happens when you remove a bulb from a
parallel circuit?
Assess the brightness of the bulbs. What do
you notice?
How does a parallel circuit compare to a series
circuit?
Record/draw your attempts in your science log.
62. RECALL:
Circuits in Series & in Parallel
Series:
Current is the same
Resistance adds
Voltages add to batter
voltage
Parallel:
Current splits
Resistance adds in complex way
Voltages is the same
Water analogy:
Current => Water flow
Voltage => Height
Resistance => Wheels
Physics
review
63. Circuits in Parallel
Voltage is the same
Current splits up
Height is the same
Water flow splits up into two pipes
Water analogy
Physics
review
68. What makes a passenger airplane take off?
TRY THIS! Hold two sheets of paper vertically parallel to
each other and blow between them. What happens?
Explain.
Physics
review
71. What would be some safety/classroom
management considerations you will need to
make when using the circuit kits in your
classroom?
Collaborative Google Doc:
http://tinyurl.com/ycm8kk76
72. Module 1:
electricity
Before Next Workshop. Post your responses to the following:
1. Did the workshop help you better understand and learn electrical
concepts and how to teach them? Explain.
2. What aspects of the workshop were most helpful to you?
3. What suggestions (if any) do you have for future workshops?
4. Select and implement 2+ of the technology tools introduced during
Workshop #1 to teach electrical or other scientific concepts in your
classroom (i.e., Plickers, iPad apps, PHeT simulations, Snap Circuit
Kits, hands-on materials).
a. Describe how you used the activity/technology and what scientific
concept you taught in your classroom.
b. How successful would you consider the instruction/materials in
teaching students the scientific concept in your classroom? How do
you know? Provide evidence of student learning (i.e., students
responses, assessment data, etc)
c. What adjustments/suggestions would you make for future
instruction?
d. What is your personal goal for future science instruction and what
support do you need to meet your goal?