Download Author - Princeton ISD

Campus: Princeton High School
Author(s): Naureen Fielding, Meaghan
Hodapp
Date Created / Revised: 04 March 2015
Six Weeks Period: 5
Grade Level & Course: 11th and Physics
Timeline: 15 Days
Unit Title: Current Electricity
Stated Objectives:
TEK # and SE
Lesson # 1
P.5 The student knows the nature of forces in the physical world. The student is expected to:
P.5E Characterize materials as conductors or insulators based on their electrical properties.
P.5F Design, construct, and calculate in terms of current through, potential difference across,
resistance of, and power used by electric circuit elements connect in both series and parallel
combinations.
See Instructional Focus Document (IFD) for TEK Specificity
Key
Understandings
Electric current is the flow of electrons.
By convention, electric current is the direction in which a positive test charge moves.
An electrical circuit transforms electrical energy into thermal or mechanical energy.
Resistors can be combined in different ways to make a series or parallel circuit.
In a series circuit, the charge travels along one path.
In a parallel circuit, the charge is divided into two or more paths. Most circuits are a
combination of parallel circuits.
It is important to understand the consequences, causes, and prevention of electrical
overloads and high voltage shock to persons and equipment.
Misconceptions
Students confuse voltage and current with the electric charges that are moving.
Students may think current flows around a complete circuit and is used by objects like
light bulbs, so less current returns than leaves the source of the electricity.
Changing the order of resistors in a series circuit does not affect the behavior of the
circuit.
Students may think that current flows from a battery to a light bulb, but not from the light
bulb to the battery.
Key Vocabulary
Ohm’s Law
Conductor
Resistor
Circuit
Potential difference
Ammeter
Voltmeter
Direct current
alternating current
capacitor
power
short
ground
battery
resistance
electric force
voltage
current
multimeter
series circuit
parallel circuit
bulb
LED
Materials, Resources, Notes
Suggested Day
5E Model
Instructional Procedures
Day 1
Engage
Engage:
Making a battery. View the short video clip about how a
battery works. Connect the terms anode and cathode to anion
and cation.
Hand out the PhyzGuide: Batteries and Current note sheet.
Students are to read the front page about Luigi and
Alessandro and explain how Alessandro Volta’s attempt to
replicate Luigi’s experiment resulted in the construction of the
first battery. Explain what Volta had to understand to construct
this “battery.”
Use Battery Resistor simulation to demonstrate battery
from Colorado Phet
Use Chp. 22 Mini-Lab Making Electric Energy or PhyzLab
Springboard The Lemon Battery or both to allow students to
construct a battery and label the cathode, anode, electrolyte.
Students should diagram their creation and label it correctly as
well as complete the worksheets that accompany the lab.
Students my use the Phyzguide handout to assist them. Write
up can be completed for homework.


Day 2 Engage
Engage:
Provide students with materials and the LaunchLab Light
the Bulb. Students construct and diagram everything that they
build. Students connect the relationship between the battery
and the circuit.

Day 3 Explain
Explain:
Show this video clip differentiating current and voltage.
Have students take individual notes.
Complete PhyzGuide: Circuit Basics as whole-class
instruction. Guide students to understanding of electricity,
current, voltage, electric potential resistance (resistors).
Complete the PhyzGuide: The Slider Circuit worksheet
provides an effective analogy to the electrical concepts of a
circuit. Continue building the analogy between the slide, a
water system and an electrical circuit.
Start the PhyzJob Playground Physics 101 with students.
Have them complete for homework.
Capacitors can be introduced on this day as well. Explain
how they are similar to batteries. Use Colorado Phet sim to
demonstrate.


Explain:
Correct selected examples from the homework and collect.
Extend:
Use the Phyz Springboard Current and Voltage activity
sheet to introduce students to analog meter scales and
differentiating current and voltage.
Evaluate:
Use questions 11, 12, 13 do complete group work for
explanations. Students in groups of three each assigned one
question must answer it and then present it to group members.
Groups must use class materials, computers, background
knowledge to check each other and present group answers. 2
grades.

Day 4 Explain/
Extend/
Evaluate
(Engage, Explore, Explain, Extend/Elaborate, Evaluate)



https://www.youtube.com/watch?v=KkRwuM4S8BQ
http://phyz.org/phyz/BOP/10-CIRCUITS/GBatteries_Current.pdf
http://phyz.org/phyz/BOP/10-CIRCUITS/JLemon_Battery-LSB.pdf
McGraw Hill Chp. 22 Mini lab
https://phet.colorado.edu/en/simulation/batteryresistor-circuit





McGraw-Hill LaunchLAB
Chapter 22 Light The
Bulb
https://www.youtube.com/watch?v=1xPjES-sHwg
http://phyz.org/phyz/BOP/10-CIRCUITS/GCircuit_Basics.pdf
http://phyz.org/phyz/BOP/10-CIRCUITS/GCircuit_Slider.pdf
https://phet.colorado.edu/en/simulation/capacitorlab
http://phyz.org/phyz/BOP/10-CIRCUITS/JCurrent_Voltage-SB.pdf
Expand:
Provide students with Transparency 1 and 2 from chapter
22. These detail the components and symbols for components
of an electrical circuit.
Once students have completed the transparencies, provide
students with opportunity to build and then diagram circuits
from Stephen Murray worksheet and lab sheet Voltage in
Circuits. Students complete the open bottom part of lab using
bulbs of different resistance. Students then look for patterns in
voltage drop and reading from front to complete top half of
back page.

Elaborate:
Introduce students to resistors and Ohm’s Law. Use
Colorado Phet Ohm’s Law simulation to introduce. Use
McGraw Hill’s Enrichment Ohm’s Law from Chapter 22 to
introduce the mathematical relationship between V, I, r.
Review pages 604-607 in textbook. Solve example problem
and 13-17 together in class. After example, break class into 4
groups- assign each person a problem-give them 5 minutes to
struggle or be successful with it then group students with the
same problem and have them prepare to share with the class
how to complete the problem. All students should complete
the problems and use them to complete the Enrichment
handout in class or for homework.
Read the connection to health and have students complete
a quickwrite if time allows.

Extend:
Students complete Circuit Guizmo or related Colorado Phet
to differentiate series and parallel circuits. Students may have
already discovered the brighter lights of parallel circuits, but
use this instructional tool to clarify concepts and introduce
differences in resistors (resistance) and Ohm’s Law.
Text book pages include 608. Use simulation for DC only.
AC will be discussed, but we do not use it in any labs because
it is dangerous, so students only need to differentiate, not use.

Day 8 Evaluate
Evaluate:
Provide students with Stephen Murray worksheets Circuits
and Symbols and Types of Circuits and Ohm’s Law. Students
may work in partners or independently to complete in class.
They may use notes or reread information from the front of the
activity sheets. Must be completed in class.

Stephen Murray
worksheets for circuits
and ohms law to
formatively assess
student comprehension
Day 9 Extend
Extend:
Voltage, Current and Resistance lab with multiple resistors.
Use lab from McGraw Hill and resistors.
Circuit Homework from Hodapp’s resources.

Voltage, Current and
Resistance lab from
McGraw Hill
Elaborate:
Present and review with the class transparencies 1 and 2
from chapter 23 on series and parallel circuits before
introducing them to calculating total resistance using Stephen
Murray Total Resistance worksheet. Work through 1-8 with
students. Assign students to complete 8-18 and have them
share on the board with the class.
Use Colorado Phet to simulate different resistors and

Day 5 Expand
Day 6 Elaborate
Day 7 Extend
Day 10 Elaborate






McGraw Hill
transparencies 1 and 2
for chapter 22.
Voltage in Circuits
Stephen Murray
worksheet
Circuit building materials
and voltmeter
McGraw Hill Enrichment
Ohm’s Law chpt. 22
https://phet.colorado.edu/en/simulation/ohms-law
Explore Learning Guizmo
for electrical circuits or
Colorado Phet for
electrical circuits.
Differentiating series and
parallel
https://phet.colorado.edu/en/simulation/circuitconstruction-kit-dc
https://phet.colorado.edu/en/simulation/circuitconstruction-kit-ac




McGraw Hill
transparencies and
Stephen Murray Total
Resistance worksheet for
review
https://phet.colorado.edu/en/simulation/resistancein-a-wire
calculating resistors in series and parallel circuits.
Extend:
Students complete Conceptual Physics resistance practice
activities in partners or small groups. Teacher monitors and
assists.
As students finish, they independently read pages 609-612
and complete transparency 4 from McGraw Hill chapter 22.

Day 12A Explain/
Elaborate
Explain:
Electrical transmission explained through lab of
Conservation of Energy, McGraw Hill chapter 22. Complete if
heating coil is available or other source to convert electricity
into thermal energy is available. Cut this day if materials not
available.

McGraw Hill
Conservation of Energy
Lab-NEED HEAING COIL
Day 12B Extend
Extend:
Introduce complex circuits using Transparency 4 Chapter
23.
Complete Simplifying Complicated Circuits from Stephen
Murray. Complete some as class and the remainder
independently. Introduce Power as a measure of electrical
energy transfer. VIR and P homework from Hopapp’s
resources.

Transparency 4 chapter
23
Stephen Murray
Simplifying complicated
circuits
Day 13 Evaluate
Evaluate:
Use Forensics Lab 6 Circuit Configuration to assess student
understanding of resistors in series and parallel. Complete lab
questions for homework.

Forensics Lab 6, Circuit
Configuration
Day 14 Elaborate
Elaborate:
And Practice- Provide students with copies of Stephen
Murray V,I, r for series and parallel circuits. Also provide
review for unit quiz

Stephen Murray
worksheets for V, I, r
calculations
Day 15 Evaluate
Evaluate:
Unit Quiz
Unit can be extended one day as Magnetism unit will start in
fifth six weeks, but finish in sixth six weeks.

Unit Quiz
Day 11 Extend
Accommodations
for Special
Populations


Conceptual Physics
Resistor calculation
practice sheet
Chp 22 Transparency 4
for electricity
transmission

Accommodations for instruction will be provided as stated on each student’s (IEP)
Individual Education Plan for special education, 504, at risk, and ESL/Bilingual.