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Lesson Plan Template Name of Lesson/Unit: Relating Magnetism and Electrical Fields: High School Physics Grade Level:11/12 Prepared by: Section 1: Lesson Summary Students explore motors and generators by first exploring electromagnets with solenoids and handheld generators. Afterwards they build classroom motors. Topic: Electromagnetism NGSS Performance Expectation: Students who demonstrate understanding can: HS-PS25. Plan and conduct an investigation to provide evidence that an electric current can produce a magnetic field and that a changing magnetic field can produce an electric current. [Assessment Boundary: Assessment is limited to designing and conducting investigations with provided materials and tools.] Crosscutting Concept Cause and Effect Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. Engineering Practices Planning and Carrying Out Investigations Planning and carrying out investigations to answer questions or test solutions to problems in 9–12 builds on K–8 experiences and progresses to include investigations that provide evidence for and test conceptual, mathematical, physical and empirical models. Plan and conduct an investigation individually and collaboratively to produce data to serve as the basis for evidence, and in the design: decide on types, how much, and accuracy of data needed to produce reliable measurements and consider limitations on the precision of the data (e.g., number of trials, cost, risk, time), and refine the design accordingly. Common Core State Standards (Reading) WHST.1112.7 WHST.1112.8 WHST.1112.9 Conduct short as well as more sustained research projects to answer a question (including a selfgenerated question) or solve a problem; narrow or broaden the inquiry when appropriate; synthesize multiple sources on the subject, demonstrating understanding of the subject under investigation. (HS-PS25) Gather relevant information from multiple authoritative print and digital sources, using advanced searches effectively; assess the strengths and limitations of each source in terms of the specific task, purpose, and audience; integrate information into the text selectively to maintain the flow of ideas, avoiding plagiarism and overreliance on any one source and following a standard format for citation. (HS-PS2-5) Draw evidence from informational texts to support analysis, reflection, and research. (HS-PS2-5) Common Core State Standards (Writing) Current CA Science Standards Standard P5h “Students know changing magnetic fields produce electric fields, thereby inducing currents in nearby conductors.” Standard P5f “ Students know magnetic materials and electric currents (moving electric charges) are sources of magnetic fields and are subject to forces arising from the magnetic fields of other sources.” Lesson Plan Template (Standard P5g “Students know how to determine the direction of a magnetic field produced by a current flowing in a straight wire or in a coil.”) Objective of the Lesson or Unit: to explore the relationship of electricity and magnetism through models of an electromagnet and a classroom motor that incorporates concepts of electromagnetism How is this objective relevant to students? Students see applications of motors, generators, and induction in their everyday life. Understanding how these work is a strong motivator for students Culminating Assessment (How will you know students have met the Performance Expectation?) Describe the assessment and attach a copy. Students organize an activity of building a motor designed for a younger child. They begin by building a small motor with paper clips, magnets, and wire. They design an activity sheet that the younger audience will complete and thereby demonstrate their understanding of motors. High school students will be assessed based on the younger students’ work. What has been taught in my class to prepare students for this topic? Current electricity, charges, causes of magnetism Description of the Lesson/Unit (Use the following Table) With 5 E and How Short description of activity People Learn in Mind! Engage Video and article on wireless charging Power by Proxi (see section 3) Explore Students are given a variety of materials: wires, cores of different materials, batteries, paper clips to explore and build electromagnets (see section 2) Students research electromagnetism and induction and use their research to explain their electromagnets Explain Purpose/Intention for the activity or Key Learning How does this activity build student knowledge and skills towards meeting the Performance Expectation? Identify at least 1 Practice Article on wireless charging stations and how they work introduce the concept of induction through an application that is relevant to high school students powerbyproxi.com/wireless-charging/ Defining problems Planning and carrying out investigations Students will discover how electricity creates an electric field, what things affect magnetic fields. Through their research, students will develop an explanation to explain their electromagnetic data and demonstrate their understanding of induction Constructing explanations Engaging in argument from Lesson Plan Template Elaborate Evaluate evidence Obtaining, evaluating, and communicating information Students build a classroom Students will demonstrate their own motor. They create an understanding of the relationship explanation and accompanying between electricity and magnetism and materials to explain motors to how a moving electrical field can a younger student. Students produce mechanical energy through will present their activities to a the teaching of the motor. younger child. Their Developing and using models presentation will be evaluated Constructing explanations based on the results of the Obtaining, evaluating, and children’s output. communicating information Students reevaluate their lessons based on the younger child’s work. They redo their lesson and turn in both lessons By analyzing the young child’s work, students will determine Section 2: Laboratory/ Hands-on Lesson Content Objective: Plan and conduct an investigation to provide evidence that an electrical current can produce a magnetic field and that a changing magnetic field can produce an electrical current. Language Objective: Speaking in scientific language. Using scientific terms appropriate to the content. Procedure: 1) Introduce electromagnetic by showing cool examples from the internet. 2) Go over key vocabulary terms the students need to understand to complete the project. 3) Break the students into groups of four or five students. 4) Give each group of students a shoe box full of materials (copper wire, aluminum wire, magnetic wire, batteries, alligator clips, battery holders, nails, wooden dowels, staples and paper clips). 5) Tell the students that they are in a competition to see who can create the strongest electromagnetic. 6) Tell the students how much time they have then let them begin. 7) Have the students test their electromagnetic by seeing how many staples and paperclips their electromagnet can pick up. The students then need to explain how the electromagnet works. Assessment: How will I know students met the objective? Students will be able to explain how to make a simple generator and explain how it works. Rubric: 1. Quality of electromagnet 2. Quality of presentation 3. Quality of worksheet 4. Checking the knowledge of the students being taught. Lesson Plan Template Description of lesson: In this lesson the students will be given a shoe box of materials with the charge that they must create an electromagmet strong enough to pick up 15 staples. The students will have to navigate the materials to make the strongest possible electromagnet. Time required for the lesson: Materials/ Preparation needed: Section 3: Science Literacy Content Objective: Students are able to explain how magnetic induction occurs in theory and in real world applications (electromagnets, transformers, wireless chargers) Language Objective: 11-12.9 Draw evidence from informational texts to support analysis, reflection, and research. Assessment: How will I know students met the objective? In collaborative groups, students will read and analyze text, answering questions about magnetic induction, formulate unanswered questions, and predict possible applications for the real world Rubric: see attachment Description of lesson: Read and analyze text, answer open ended questions Time required for the lesson: 45 minutes Materials/ Preparation needed: Articles from howstuffworks.com or powerbyproxi.com/wirelesscharging/ Articles may be printed or accessed by internet. Guiding questions are provided with the articles to check understanding. Wireless charging by magnetic induction Students work in small groups. Each student must answer 1 or 2 questions. Each student reads aloud their answer while others listen and record the answers in their science journal. Students may alternatively record answers in KWL chart. Example questions: 1) Describe magnetic coupling 2) when power is transferred do things have to be touching? May objects be placed between the charger and the charging object? 3) How does adding coils or changing their size affect power? Lesson Plan Template 4) What is magnetic resonance and what does it do? What other scientific phenomenon is it like? 5) what are some benefits of wireless charging? 6) What can wireless chargers be used to charge? 7) Is any special equipment necessary to charge cellphones or AA batteries? why? 8) What are some possible uses of wireless charging in the future and what are some limitations? 9) What are the differences and similarities between consumer use and industrial uses of wireless chargers? Students should also come up with their own unanswered questions about the article. Students are encouraged to speculate and predict possible real world applications. Reading - Analyzing Information: science Teacher Name: Student Name: CATEGORY 4 ________________________________________ 3 2 1 Identifies facts Student accurately locates at least 5 facts in the article and gives a clear explanation of why these are facts, rather than opinions. Student accurately locates 4 facts in the article and gives a reasonable explanation of why they are facts, rather than opinions. Student accurately locates 4 facts in the article. Explanation is weak. Student has difficulty locating facts in an article. Identifies important information Student lists all the main points of the article without having the article in front of him/her. The student lists all the main points, but uses the article for reference. The student lists all but one of the main points, using the article for reference. S/he does not highlight any unimportant points. The student cannot important information with accuracy. Lesson Plan Template Summarization Student uses only 1-3 sentences to describe clearly what the article is about. Student uses several sentences to accurately describe what the article is about. Student summarizes most of the article accurately, but has some slight misunderstanding. Student has great difficulty summarizing the article. Predicts possible 4 or more uses predictions 2 or 3 predictions 1 prediction No answer or incomplete Compare/ contrast Student uses 2 or 3 sentences to compare consumer with industry use Student uses 1 No answer or sentence to incomplete compare consumer with industry use Student uses 3 or 4 sentences to compare consumer with industry use Section 4: Student Pages Please provide a printer/copier friendly student pages for Section 2 and Section 3. Lesson Plan Template Exploring Motors with Children Work Task: You will use inquiry teaching to instruct an individual or small group of younger students about how to build a motor and the scientific concepts behind their motor. groups of students about the eight concepts/themes using the suggested activities. Besides helping your younger audience to build a motor, you will prepare the stations and be well versed in the procedure. You will explain the activity to your younger audience and will design an activity sheet that your “class” will complete to demonstrate their understanding of motors. This work will be used to evaluate your project. The Lesson Plan Complete a lesson plan. Include a title, an essential question, teacher information (see below), materials, procedure (including a labeled drawing), and at least three inquiry questions to use during your activity. Teacher Information In your teacher information, explain how electric current can produce a magnetic field and how a changing magnetic field can produce an electric current and why both are important for generators and motors. Before writing your explanation, make a double bubble map comparing and contrasting motors and generators. Then use your thinking map to write a clear explanation. Be sure it includes an explanation of armatures, electromagnetism, and repelling of magnetic fields. Basic Procedure for motor Take 30 centimeter of 28-gauge magnet wire and wrap it around your two finger to make a coil. This loop of wire will be your armature. Sand off the enamel coating on the two ends of the magnet wire. Bend two paper clips in an S shape to form a cradle for the armature. Tape a D or C cell battery to the bottom of a cup. Place magnet on top of the battery. Tape the paper clips to the battery. Place the armature in the cradle. Adjust the level until the armature begins to spin.