Download Basic Electricity - Alabama Community College System

Alabama
Department of
Postsecondary Education
Representing Alabama’s Public Two-Year College System
AMT 101
Basic Electricity
Plan Of Instruction
Effective Date:
2004
Version Number: Base Document
This course may be taught in its entirety in career/technical education degree
programs, non-degree programs, and Training for Business and Industry
programs. Individual instructional modules may be taught in customized
training, adult education work-based project learner activities, and short-term
training.
COURSE DESCRIPTION: This course provides a study in electricity. Emphasis is
placed on alternating current (AC) and direct current (DC) circuits and controls,
electrical measurements, electrical test equipment, aircraft batteries, fundamental
electronics, and semi-conductor devices. Upon completion, students should be able to
solve problems associated with electrical measurements, use basic electrical test
equipment, and service aircraft batteries. CORE
CONTACT/CREDIT HOURS (applicable if entire course is taught in a career/technical education
degree or non-degree program)
Theory Contact/Credit Hours
Lab Contact/Credit Hours
Total Contact/Credit Hours
3/3 hours
6/2 hours
9/5 hours
49 hours (1:1)
91 hours (3:1)
140 hours
NOTE: Colleges may schedule lab hours as manipulative (3:1) or experimental (2:1). Adjustments in contact hours
must be made accordingly.
PREREQUISITE COURSES (applicable if entire course is taught in a career/technical education
degree or non-degree program)
Determined by college unless stated otherwise.
CO-REQUISITE COURSES (applicable if entire course is taught in a career/technical education
degree or non-degree program)
Determined by college unless stated otherwise.
Basic Electricity
AMT 101
INDUSTRY COMPETENCIES

Inspect soldered electrical connections

Use a multimeter to measure electrical properties
App. B, Sec A, Item 3, Level 3
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Determine the relationship of voltage, current, and resistance
App. B, Sec A Item 4, Level 3

Calculate and measure electrical power
App. B, Sec A Item 1, Level 2

Measure capacitance and inductance
App. B, Sec A Item 1, Level 2
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Read and Interpret electrical circuit diagrams
App. B, Sec A Item 5, Level 3
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Inspect and service batteries
App. B, Sec A Item 6, Level 3
COURSE OBJECTIVES
The cognitive objective of this course is for each student to comprehend foundational
knowledge needed to perform stated entry-level industry competencies.
The performance objective of this course is for each student to apply foundational
knowledge to practical problems and exercises encountered in class.
Alabama College System
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Basic Electricity
AMT 101
INDUSTRY COMPETENCY/STUDENT PERFORMANCE OBJECTIVES
Industry Competency
Student Performance Objectives
MODULE A DIRECT CURRENT ELECTRICITY
Determine the relationship
Given a DC series circuit and a multimeter, measure the
of voltage, current and
voltage, current, and resistance then calculate to see if
resistance in an electrical
Ohm’s law fits the measurement.
circuit
App. B, Sec. A Item 4,
Given a DC parallel circuit and a multimeter, measure the
Level 3
voltage, current, and resistance then calculate to see if
Ohm’s law fits the measurement.
Calculate and measure
electrical power
App. B, Sec. A Item 2,
Level 2
Given a DC series-parallel circuit and a multimeter,
measure the voltage, current, and resistance then
calculate to see if Ohm’s law fits the measurement.
Given the knowledge taught in class, a DC electrical
circuit and verbal instructions calculate electrical power
and verify result with a multimeter.
Use a multimeter to
measure electrical
properties
App. B, Sec A, Item 3,
Level 3
Given the knowledge taught in this class, a multimeter
and electrical circuits, and verbal instructions, measure
specified electrical properties with no errors.
ENABLING OBJECTIVES/KEY INDICATORS
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Explain electrical theory
Identify electrical symbols
Define electrical terms
Describe electrical current
Describe electromotive force
Explain how electromotive force is generated
Define resistance
Explain the function of resistance in an electrical circuit
Define power
Explain how power is produced
State Ohm’s law
Use Ohm’s Law to calculate resistance
Explain the relationship of electrical properties in a circuit
Identify direct current circuits
Solve practical problems pertaining to resistance, voltage, current and power in DC circuits
Explain the theory of magnetism
Identify magnetic circuits
Identify the type and purpose of different magnetic devices
Explain magnetic induction theory
Determine the power furnished by a generator to an electrical system consisting of various
electrical units having specific load ratings
Alabama College System
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Basic Electricity
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AMT 101
Determine the power required by an electric motor that is operating at a specified
efficiency and load
Use an ohmmeter to check for open or short circuits
Identify the test instruments used to check continuity
Explain the basic operating principles of D.C. electrical instruments
Explain the basic operating principles of a galvanometer
Explain how to connect voltmeters and ammeters into and electrical circuits
Identify the purpose of a shunt resistor when used with an ammeter
Explain the meaning of prefixes such as micro, mega, kilo, and milli as used in expressing
electrical qualities
Determine the current flow in an electrical circuit using variable resistance and voltage
values
Determine the power requirements of an electrical circuit when the voltage and resistance
values are specified
Describe current relationship in a parallel circuit
Identify the unit of measurement used to express electrical power
Describe the principle of electromagnetic induction
Describe the characteristics of magnets and magnetic lines of force
Identify the factors that affect the voltage drop in an electrical conductor
Determine the resistance of and electrical device form the wattage and voltage values
specified
Calculate voltage drop across a resistor
Describe the purpose of a multimeter
Explain the use of a multimeter
MODULE B ALTERNATING CURRENT ELECTRICITY
Determine the relationship
Given an AC series circuit and a multimeter, calculate
between voltage, current,
and measure the voltage, current, and resistance with
and resistance in electrical 70% of the required measurements correct.
circuits
App. B, Sec A Item 4,
Given an AC parallel circuit and a multimeter, measure
Level 3
the voltage, current, and resistance with 70% of the
required measurements correct.
Given an AC series-parallel circuit and a multimeter,
measure the voltage, current, and resistance with 70% of
the required measurements correct.
Calculate capacitance and
inductance
App. B, Sec A Item 1,
Level 2
Alabama College System
Given the knowledge taught in class, an AC electrical
circuit, and a multimeter, calculate capacitance,
inductance and impedance and verify results with a
multimeter.
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Basic Electricity
AMT 101
ENABLING OBJECTIVES/KEY INDICATORS
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Identify the basic principles of alternating current theory
Explain the basic principles of alternating current theory
Define the following terms: capacitor, inductors, transformers, resistors, and rectifiers
Explain the function of the following terms: capacitor, inductors, transformers, resistors,
and rectifiers
Describe the effect of inductive reactance in an electrical circuit
Describe the interrelationship of capacitance and inductive reactance
Identify the term that describes the combined resistive forces in an a.c. electrical circuit
Identify the unit of measurement for capacitance and inductance
Identify different electrical system test equipment
MODULE C SEMICONDUCTOR DEVICES
No performance objectives published for this module
ENABLING OBJECTIVES/KEY INDICATORS
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Define a semiconductor
Explain the function of semiconductors in electrical circuits
Describe the construction of diodes, transistors, integrated circuits, and other solid state
devices
Describe the use of diodes, transistors, integrated circuits, and other solid-state devices
MODULE D BATTERIES
Inspect and Service Batteries
Given the knowledge taught in this class, an aircraft
App. B, Sec. A Item 6, Level
battery, required tools, technical manuals and
3
checklists, inspect the battery to determine
serviceability.
Given the knowledge taught in this class, an aircraft
battery, required tools, technical manuals and
checklists, service the battery to simulated
airworthiness specification.
ENABLING OBJECTIVES/KEY INDICATORS
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Explain the theory of aircraft batteries
Describe the construction of aircraft batteries
Summarize the operation of aircraft batteries
Describe the inspection procedures associated with lead acid
battery maintenance
Explain lead acid battery checkout procedures
Summarize the process of servicing lead acid aircraft batteries
Describe the inspection procedures associated with nickel-cadmium
battery maintenance
Explain nickel-cadmium battery checkout procedures
Summarize the process of servicing nickel cadmium aircraft batteries
Explain how to remove spilled electrolyte and treat all adjacent surfaces
Explain how to remove and install a battery in an aircraft with a single-wire electrical
system
Describe how to connect batteries to a constant-current battery charger
Determine the specific gravity of the battery electrolyte
Explain how to perform high rate discharge condition test of batteries
Alabama College System
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Basic Electricity
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AMT 101
Describe the design factors that affect battery and voltage capacity
Describe the factors that determine battery charge rate on a constant voltage source
Identify the indications of shorted battery cell
Describe the significance of battery capacity ratings
Describe the effects of internal resistance on battery capacity ratings
Describe of increased internal resistance on battery operation
Describe the effects of connecting battery cells in series and or parallel
Explain the relative advantages of lead acid and nickel cadmium batteries in aircraft
Describe the principles of battery construction
Explain how to check battery electrolyte levels
Explain the relationship between battery state of charge and the temperature at which the
electrolyte will freeze
State the purpose and requirements for ventilating batteries and battery compartment in
civil aircraft
Explain the effect of excessive charging rates on batteries
MODULE E WIRING DIAGRAMS AND CIRCUITS
Read and Interpret
Given the knowledge taught in this class and electrical
Electrical Circuit Diagrams circuit diagrams, explain (in writing or verbally) the
App. B, Sec A Item 5,
operation of the circuit.
Level 3
Inspect soldered electrical
Given the knowledge taught in this class, a soldered
connections
electrical connection, and verbal instructions, inspect the
joint and determine acceptability.
ENABLING OBJECTIVES/KEY INDICATORS
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Identify commonly used aircraft electrical symbols
Explain the meaning of each symbol
Describe the functioning of an electrical circuit using a wiring diagram
Trace electrical circuits using aircraft wiring diagrams
Identify electrical system malfunctions by reference to circuit diagrams
Define soldering
Explain the purpose of soldering
Identify a good soldering joint
Explain the process of soldering
Alabama College System
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Basic Electricity
COURSE CONTENT OUTLINE
AMT 101
FAA AUTHORITY 147
SAFETY INSTRUCTION
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General
Fire Drills
Severe Weather
Shop Safety
Flight Line Safety
MODULE A DIRECT CURRENT ELECTRICITY
 Basic of Electricity
o
Basic molecular structure
o
Electrostatic Theory
o
The Ion
o
Electrical Prefixes
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Electrical Current
o
Freeing Electrons
o
Conductors and insulators
o
Random drift and directed drift
o
The electrical circuit
o
The Ampere
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Voltage
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Electromotive Force
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Potential Difference
o
Polarity Markings
o
Voltage rises and Drops
o
Kirchoff’s law of voltage
o
Concept of Ground Connections
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Resistance
o
The Ohm
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Resistors
o
Variable Resistors
o
Resistor Connections
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Conductance
o
Resistor color code
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Ohm’s law and the electrical circuit
o
Ohm’s law
o
Type circuits
 Series
 Parallel
Alabama College System
App. B, Sec A Item 4, Level 3
7
Basic Electricity
AMT 101
 Series-Parallel
 Multimeters
o Purpose
o Use
App. B, Sec A, Item 3, Level 3
o Illustrations
NOTE: Practical Exercise I-B to be conducted at this point
NOTE: Practical Exercise I-C to be conducted at this point.
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App. B, Sec. A, Item 2, Level 2
Power in DC Circuits
o
Unit of Measurement
o
Method of Determination
o
Power dissipation in resistors
NOTE: Practical Exercise I-D to be conducted at this point.
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Magnetism and electromagnetism
o
The magnetic field
o
Types of magnets
o
Theories of magnetism
o
Magnetic terminology
o
Uses
o
Electromagnets
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Electrical measuring instruments
o
Meter movements
o
Meter sensitivity ratings
o
Ammeters and shunts
o
Voltmeters and multipliers
PROGRESSIVE EXAMINATIONS
MODULE B ALTERNATING CURRENT ELECTRICITY
 Alternating Current Theory
o
Definition
o
Generation of an alternating current
o
Alternating current measurements
o
Oscilloscopes
o
Resistive circuits
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Inductive circuits
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Resistive-inductive circuits
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Capacitive circuits
o
Resistive capacitive circuits
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Resistive, capacitive and inductive circuits
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Parallel circuits containing RL & C
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Power factor of an AC Circuit
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Resonant circuits
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Transformers
o
Rectifiers
Alabama College System
App. B, Sec. A, Item 4, Level 3
8
Basic Electricity
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AMT 101
Capacitors and inductors
o
Capacitors
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Definition and types
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Construction
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Theory of operation
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Unit of Measurement
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Multiple capacitor circuits
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Capacitors and the DC circuit
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RC Time constants
o Inductors
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Definition and types
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Construction
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Theory of operation
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Unit of measurement
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Multiple inductor circuits
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Inductor and the DC circuit
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LR time constants
NOTE: Practical exercises I-E to be conducted at this point
MODULE C SEMICONDUCTORS
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Electronic Devices
o Semi-Conductors
o PN Junctions
o Diodes
o Zener Diodes
o Transistors PNP & NPN
o Light sensitive devices
o Light emitting devices
o Integrated circuits
o Cooling methods
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Heat sinks
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Forced air
PROGRESSIVE EXAMINATION
MODULE D BATTERIES
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Batteries
o Voltaic cell
o Primary cell
o Secondary Cell
o Cell connections
o Alkaline cells
o Photovoltaic Cells
o Lead Acid cells
o Battery ratings
o Battery testing
Alabama College System
App. B, Sec. A Item 6, Level 3
9
Basic Electricity
AMT 101
o Charging Methods
o Installation of lead acid batteries
o Inspection and servicing of lead acid batteries
o Nickel-cadmium batteries
o Charging nickel-cadmium batteries
NOTE: Practical exercises I-G to be conducted at this point
MODULE E WIRING DIAGRAMS AND SYSMBOLS
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Wiring Diagrams and Symbols
App. B, Sec. A Item 5, Level 3
o Wire identification
o Read and interpret electrical circuit diagrams
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Soldering
o Purpose
o Process
o Examples and Non examples of good soldering
NOTE: Practical Exercise I-A to be conducted at this point.
NOTE: Practical exercises I-F to be conducted at this point
PROGRESSIVE EXAMINATIION #3
FINAL EXAMINATION
Alabama College System
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Basic Electricity
AMT 101
RECOMMENDED METHODS OF EVALUATION: The table of specifications below
identifies the number of enabling objectives/key indicators per cognitive domain level of
learning (Knowledge, Comprehension, Application) per module. The instructor should
develop 1-3 test questions per Knowledge Level of Learning, 2-4 test questions per
Comprehension Level of Learning, and 5-6 questions per Application Level Learning.
The instructor should use the following test item types for each level of learning:
Knowledge: Alternative Response test items (true/false or yes/no)
Comprehension: Multiple Choice
Application: Multiple Choice, Short Answer Exercises
The instructor should ensure each student meets the performance and standards
published in each criterion objective. See FAA AC 147-3 Certification And Operation Of
Aviation Maintenance Technician Schools Appendix 1for evaluation instrument
guidance and development.
Domain of
Learning/
Content
Module A
Module B
Module C
Module D
Module E
Number of
indicators per
level
TABLE OF SPECIFICATIONS
Cognitive Domain
Total
Cognitive
Total
Performance
Knowledge Comprehension Application
15
6
1
3
5
30
Alabama College System
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3
3
22
3
45
9
5
0
1
2
17
38
14
4
26
10
92
5
4
0
2
2
13
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Basic Electricity
AMT 101
RECOMMENDED INSTRUCTIONAL METHODOLOGIES: The table below links the
teaching methods and activities most effective for facilitating student achievement of
learning outcomes published in this plan of instruction.
Cognitive Level
(Thinking)
Knowledge
Descriptive Verbs:
Defines, Lists, States,
Describes, Identifies
Comprehension
Descriptive Verbs:
Describe, Explains,
Summarizes
Goal For Students
Teaching Methods
Knows common terms,
specific facts, methods,
procedures, basic
concepts, principles
Lecture
Computer Based
Instruction
Video
Demonstration
Mnemonics
Examples or Illustrations
Repetition
Summaries
Reviews
Understands facts and
principles
Informal Lecture
Discussion
Demonstration
Participation
Interactive Computer
Based Instruction
1. Teach to the Knowledge
Level
Interprets verbal material
Interprets charts and
graphs
Translates verbal
material to mathematical
formulas
Justifies methods and
procedures
Descriptive Verbs:
Uses, Solves, Operates,
Produces,
Demonstrates, Constructs
Applies concepts and
principles to new
situations
Applies laws and
theories to practical
situations
4. Put students in a new
situation, and the students
solve the new situation
using the concept, principle,
or procedure while
instructor supervises.
Demonstration
Individual Research
Lab Exercises
Case Studies
Experiments
Constructs charts,
graphs, or simple
mechanism
Psychomotor Level
(Doing)
Mechanism
Descriptive Verbs:
Assembles, calibrates,
constructs, measures, fixes,
dismantles, sketches
Alabama College System
Learned responses have
become habitual and
can be performed with
some confidence and
proficiency
5. Reteach as required
1. Teach to the Knowledge
Level
2. Teach to the
Comprehension Level
3. Student must identify the
concept, principle, or
procedure and use it to
solve new scenario
Solves mathematical
problems
Demonstrates correct
usage of a method or
procedure
Goal For Students
2. Explains and
demonstrates concept,
principle or procedure
learned
3. Put students in new
situation, and instructor and
students co-solve
employing the indicated
concept, principle, or
procedure.
Estimates future
consequences
Application
Teaching Activities
4. Reteach as required
Teaching Methods
Teaching Activities
Lab Exercises
Case Studies
Experiments
1. Demonstration
2. Observation
3. Feedback
4. Reteach as required
12
Basic Electricity
Plan of Instruction
(POI)
Industry
Competencies
Course Objectives
Criterion Objectives
Enabling
Objectives/Key
Indicators
Table of
Specifications
Cognitive Domain
Psychomotor Domain
Course Description
Course
Prefix/numbers
Co-requisite Course
Modules
Course Content
Outline
Contact/Credit hours
Prerequisite
Knowledge
Recommended
Methods of Evaluation
Alabama College System
AMT 101
Glossary of Terms
A teaching-learning plan which includes student centered
instructional objectives, outlined content, instructional and
evaluation strategies, and other relevant information needed
to guide the development and/or revision of learning
experiences such that students achieve stated educational
outcomes.
Entry-level skills students must acquire during enrollment in
the course.
The overall goal of the course of instruction stated in broad
terms.
The terminal outcome each student is required to meet.
Criterion objectives are directly related to industry
competencies. There will be one or more criterion
objectives published for each industry competency.
The required knowledge and/or skill each student must
acquire in order to have the best chance of achieving the
stated performance in the criterion objective.
Used to ensure adequate sampling of student knowledge as
specified by the enabling and criterion objectives.
The domain of learning typified by thinking and focused on
the development of intellectual capabilities.
The domain of learning typified by performing or doing and
focused on the development of motor skills.
Section Explanation
A broad description of key elements in a given course.
Used to identify courses taught in multiple disciplines.
Course required in conjunction to the specified course often
in the form of a lab
A grouping of interrelated knowledge and skills representing
a sub-element of a course.
A listing of topics for instruction in a particular course
Specifies the recommended contact to credit hours for each
course. Mandates the total credit hours awarded for each
course.
Intellectual capabilities required for handling the academic
rigors of the discipline.
Suggests test item options for measuring student
achievement of enabling objectives. Suggests the number
of test items required to adequately measure student
achievement of enabling objectives. Mandates the
evaluation of criterion objectives.
13
Basic Electricity
Recommended
Instructional
Methodologies
AMT 101
Suggests the most effective instructional methods for
achieving stated learning levels
Directions for Use
1.
2.
3.
4.
5.
6.
Review the entire document.
Assess the industry competencies specified in the POI keeping in mind that the
stated skills are the target outcomes for the course.
Assess the criterion objectives written for each competency keeping in mind
the objective specifies the behavior each student must exhibit in order to
achieve the competency.
Adjust performance evaluation instruments to ensure each criterion objective is
addressed.
Develop additional performance evaluations as needed
Assess enabling objectives/key indicators specifying student outcomes
Adjust objective evaluations based on the guidance provided in the POI table
of specification to ensure adequate sampling of student learning outcomes.
7.
8.
9.
10.
11.
12.
13.
14.
Evaluate current classroom curriculum and determine if learning experiences
support student achievement of skills identified in criterion objectives. Adjust
as necessary.
Review recommended instructional methodologies for teaching activities
appropriate to specified levels of learning.
Develop appropriate learning experiences for those skills not addressed.
Ensure specified contact hours are enough to cover existing and new learning
experiences developed.
Ensure adequate time exists to evaluate each student on all criterion
objectives.
Adjust course syllabus to reflect changes made.
If necessary, adjust school surveys to reflect changes made.
Alabama College System
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