Objective Content

Unit

Introduction to Electricity

Local Objective

At the end of this unit, students will be able to:

a. Describe how charged objects interact by using the law of electric charges.

b. Describe three ways in which an object can become charged.

c. Compare conductors with insulators.

d. Give two examples of static electricity and electric discharge.

e. Describe electric current.

f. Describe voltage and its relationship to electric current.

g. Describe resistance and its relationship to electric current.

h. Explain how a cell generates electrical energy.

i. Describe how thermocouples and photocells generate electrical energy.

j. Use Ohm's law to calculate voltage, current, and resistance.

k. Calculate electric power.

l. Determine the electrical energy used by a device.

m. Name the three essential parts of a circuit.

n. Compare series circuits with parallel circuits.

o. Explain how fuses and circuit breakers protect your home against short circuits and circuit overloads.

Objective used to evaluate students

Yes

Assessment Activity

1. The students will be assessed by completing daily independent activities on the objectives of describing how charged objects interact by using the law of electric charges; describing three ways in which an object can become charged; comparing conductors with insulators; giving two examples of static electricity and electric discharge; describing electric current; describing voltage and its relationship to electric current; describing resistance and its relationship to electric current; explaining how a cell generates electrical energy; describing how thermocouples and photocells generate electrical energy; using Ohm's law to calculate voltage, current, and resistance; calculating electric power; determining the electrical energy used by a device; naming the three essential parts of a circuit; comparing series circuits with parallel circuits; and explaining how fuses and circuit breakers protect your home against short circuits and circuit overloads.

2. At the end of the unit, students will complete a unit evaluation testing mastery of describing how charged objects interact by using the law of electric charges; describing three ways in which an object can become charged; comparing conductors with insulators; giving two examples of static electricity and electric discharge; describing electric current; describing voltage and its relationship to electric current; describing resistance and its relationship to electric current; explaining how a cell generates electrical energy; describing how thermocouples and photocells generate electrical energy; using Ohm's law to calculate voltage, current, and resistance; calculating electric power; determining the electrical energy used by a device; naming the three essential parts of a circuit; comparing series circuits with parallel circuits; and explaining how fuses and circuit breakers protect your home against short circuits and circuit overloads.

Level of Expectation

80%

List of concepts and Evaluation Types

Concept	Evaluation Type
Unit Exam	CR
Questions	CR

Learning Activity

The students will:

a. Read a section about electric charge and static electricity. Discuss topics such as how charged objects interact by using the law of electric charges, the three ways in which an object can become charged, how to compare conductors with insulators, and two examples of static electricity and electric discharge.

b. Answer some recall questions from the reading checking for identification of key ideas, using math skills, using critical thinking, and interpreting graphics.

c. Read a section about electric current and electrical energy. Discuss topics such as electric current, voltage and its relationship to electric current, resistance and its relationship to electric current, how a cell generates electrical energy, and how thermocouples and photocells generate electrical energy.

d. Answer some recall questions from the reading checking for identification of key ideas, using math skills, using critical thinking, and interpreting graphics.

e. Read a section about electrical calculations. Discuss topics such as how to use Ohm's law to calculate voltage, current, and resistance; how to calculate electric power; and how to determine the electrical energy used by a device.

f. Answer some recall questions from the reading checking for identification of key ideas, using math skills, using critical thinking, and interpreting graphics.

g. Read a section on electric circuits. Discuss topics such as the three essential parts of a circuit, how to compare series circuits with parallel circuits, and how fuses and circuit breakers protect you home against short circuits and circuit overloads.

h. Answer some recall questions from the reading checking for identification of key ideas, using math skills, using critical thinking, and interpreting graphics.

i. End the chapter by reviewing their questions. Take a unit exam over the section "Introduction to Electricity." Questions will review the following objectives: describing how charged objects interact by using the law of electric charges; describing three ways in which an object can become charged; comparing conductors with insulators; giving two examples of static electricity and electric discharge; describing electric current; describing voltage and its relationship to electric current; describing resistance and its relationship to electric current; explaining how a cell generates electrical energy; describing how thermocouples and photocells generate electrical energy; using Ohm's law to calculate voltage, current, and resistance; calculating electric power; determining the electrical energy used by a device; naming the three essential parts of a circuit; comparing series circuits with parallel circuits; and explaining how fuses and circuit breakers protect your home against short circuits and circuit overloads.

Instructional Method

The teacher will:

a. Lecture and discuss electric charge and static electricity. Include specific topics such as how charged objects interact by using the law of electric charges, the three ways in which an object can become charged, how to compare conductors with insulators, and two examples of static electricity and electric discharge.

b. Guide students during the answering of recall questions.

c. Lecture and discuss electric current and electrical energy. Include specific topics such as electric current, voltage and its relationship to electric current, resistance and its relationship to electric current, how a cell generates electrical energy, and how thermocouples and photocells generate electrical energy.

d. Guide students during the answering of recall questions.

e. Lecture and discuss electrical calculations. Include specific topics such as how to use Ohm's law to calculate voltage, current, and resistance; how to calculate electric power; and how to determine the electrical energy used by a device.

f. Guide students during the answering of recall questions.

g. Lecture and discuss electric circuits. Include specific topics such as the three essential parts of a circuit, how to compare series circuits with parallel circuits, and how fuses and circuit breakers protect you home against short circuits and circuit overloads.

h. Guide students during the answering of recall questions.

Content Standards

MA 1, SC 7, CA 4, SC 1

Process Standards

1.8, 2.3, 1.5, 4.1, 3.3, 3.1, 3.5

Resources

Holt Science & Technology "Electricity and Magnetism" (N)

Correction Exercise

Assignment Corrections

Tutoring/Peer Coaching

Enrichment Exercise

Chapter 1 Enrichment Pages

Special Needs

Assignment Modifications

Alternative Testing

Tutoring/Peer Coaching

GLEs v1.0

GLE Code	Discipline	Strand	Big Idea	Concept	Grade Level/Course	GLE
SC/1ME/2/A/07/m	Science	Properties and Principles of Matter and Energy	Energy has a source, can be transferred, and can be transformed into various forms but is conserved between and within systems	Forms of energy have a source, a means of transfer (work and heat), and a receiver	Grade 7	Scope and Sequence Forms of Energy: Electricity and Magnetism Diagram and distinguish between complete series and parallel circuits
SC/1ME/2/A/07/n	Science	Properties and Principles of Matter and Energy	Energy has a source, can be transferred, and can be transformed into various forms but is conserved between and within systems	Forms of energy have a source, a means of transfer (work and heat), and a receiver	Grade 7	Scope and Sequence Forms of Energy: Electricity and Magnetism Identify advantages and disadvantages of series and parallel circuits
SC/1ME/2/A/07/h	Science	Properties and Principles of Matter and Energy	Energy has a source, can be transferred, and can be transformed into various forms but is conserved between and within systems	Forms of energy have a source, a means of transfer (work and heat), and a receiver	Grade 7	Scope and Sequence Forms of Energy: Electricity and Magnetism Describe the interactions (i.e., repel, attract) of like and unlike charges (i.e., magnetic, static electric, electrical)
SC/1ME/2/A/07/i	Science	Properties and Principles of Matter and Energy	Energy has a source, can be transferred, and can be transformed into various forms but is conserved between and within systems	Forms of energy have a source, a means of transfer (work and heat), and a receiver	Grade 7	Scope and Sequence Forms of Energy: Electricity and Magnetism Diagram and identify a complete electric circuit by using a source (battery), means of transfer (wires), and receiver (resistance bulbs, motors, fans)
SC/1ME/2/A/07/j	Science	Properties and Principles of Matter and Energy	Energy has a source, can be transferred, and can be transformed into various forms but is conserved between and within systems	Forms of energy have a source, a means of transfer (work and heat), and a receiver	Grade 7	Scope and Sequence Forms of Energy: Electricity and Magnetism Observe and describe the evidence of energy transfer in a closed series circuit
SC/8ST/2/B/06-08/a	Science	Impact of Science, Technology and Human Activity	Historical and cultural perspectives of scientific explanations help to improve understanding of the nature of science and how science knowledge and technology evolve over time	Scientific theories are developed based on the body of knowledge that exists at any particular time and must be rigorously questioned and tested for validity	Grade 6-8	Scope and Sequence - All Units Recognize the difficulty science innovators experience as they attempt to break through accepted ideas (hypotheses, laws, theories) of their time to reach conclusions that may lead to changes in those ideas and serve to advance scientific understanding (e.g., Darwin, Copernicus, Newton)
SC/8ST/2/B/06-08/b	Science	Impact of Science, Technology and Human Activity	Historical and cultural perspectives of scientific explanations help to improve understanding of the nature of science and how science knowledge and technology evolve over time	Scientific theories are developed based on the body of knowledge that exists at any particular time and must be rigorously questioned and tested for validity	Grade 6-8	Scope and Sequence - All Units Recognize explanations have changed over time as a result of new evidence
SC/1ME/2/A/07/k	Science	Properties and Principles of Matter and Energy	Energy has a source, can be transferred, and can be transformed into various forms but is conserved between and within systems	Forms of energy have a source, a means of transfer (work and heat), and a receiver	Grade 7	Scope and Sequence Forms of Energy: Electricity and Magnetism Describe the effects of resistance (number of receivers), amount of voltage (number of energy sources), and kind of transfer materials on the current being transferred through a circuit (e.g., brightness of light, speed of motor)
SC/1ME/2/A/07/l	Science	Properties and Principles of Matter and Energy	Energy has a source, can be transferred, and can be transformed into various forms but is conserved between and within systems	Forms of energy have a source, a means of transfer (work and heat), and a receiver	Grade 7	Scope and Sequence Forms of Energy: Electricity and Magnetism Classify materials as conductors or insulators of electricity when placed within a circuit (e.g., wood, pencil lead, plastic, glass, aluminum foil, lemon juice, air, water)
SC/7IN/1/B/07/a	Science	Scientific Inquiry	Science understanding is developed through the use of science process skills, scientific knowledge, scientific investigation, reasoning, and critical thinking	Scientific inquiry relies upon gathering evidence from qualitative and quantitative observations	Grade 7	Scope and Sequence - All Units Make qualitative observations using the five senses
SC/7IN/1/B/07/c	Science	Scientific Inquiry	Science understanding is developed through the use of science process skills, scientific knowledge, scientific investigation, reasoning, and critical thinking	Scientific inquiry relies upon gathering evidence from qualitative and quantitative observations	Grade 7	Scope and Sequence - All Units Use a variety of tools and equipment to gather data (e.g., microscopes, thermometers, analog and digital meters, computers, spring scales, balances, metric rulers, graduated cylinders, stopwatches)
SC/7IN/1/B/07/b	Science	Scientific Inquiry	Science understanding is developed through the use of science process skills, scientific knowledge, scientific investigation, reasoning, and critical thinking	Scientific inquiry relies upon gathering evidence from qualitative and quantitative observations	Grade 7	Scope and Sequence - All Units Determine the appropriate tools and techniques to collect data
SC/8ST/2/A/06-08/a	Science	Impact of Science, Technology and Human Activity	Historical and cultural perspectives of scientific explanations help to improve understanding of the nature of science and how science knowledge and technology evolve over time	People of different gender and ethnicity have contributed to scientific discoveries and the invention of technological innovations	Grade 6-8	Scope and Sequence - All Units Describe how the contributions of scientists and inventors, representing different cultures, races, and gender, have contributed to science, technology and human activity (e.g., George Washington Carver, Thomas Edison, Thomas Jefferson, Isaac Newton, Marie Curie, Galileo, Albert Einstein, Mae Jemison, Edwin Hubble, Charles Darwin, Jonas Salk, Louis Pasteur, Jane Goodall, Tom Akers, John Wesley Powell, Rachel Carson) (Assess Locally)

Objective Notes/Essential Questions

Date	Note/Question
6/18/2007 11:46:12 AM	Briefly explain the relationship between charge and force. Discuss the differences between an electrical conductor and an electrical insulator. Give an example of each. What are two factors that affect the amount of electric current in a wire? Explain the difference between wet cells and dry cells. According to Ohm's law, what happens to the current if the voltage increases and the resistance stays constant? How do electric power companies keep track of how much electrical energy a household or business uses? What happens to charges in a circuit when a switch is closed? open? Do parallel circuits have the same amount of energy in them? What happens in a short circuit?

Date

Note/Question

6/18/2007 11:46:12 AM

Briefly explain the relationship between charge and force. Discuss the differences between an electrical conductor and an electrical insulator. Give an example of each. What are two factors that affect the amount of electric current in a wire? Explain the difference between wet cells and dry cells. According to Ohm's law, what happens to the current if the voltage increases and the resistance stays constant? How do electric power companies keep track of how much electrical energy a household or business uses? What happens to charges in a circuit when a switch is closed? open? Do parallel circuits have the same amount of energy in them? What happens in a short circuit?