Pakistan International School [English Section], Jeddah Lesson Plan (SS) Subject: Physics Subject Teachers: Mr. Arif| Mr. Zeeshan | Ms. Rabia Week No Week Beginning Week 23 Jan 6th, 2018 No. of lessons per week: 7 Class: Y10 Note: Week 22 is midterm break Topic: Electromagnetism Ref. Course Book: Physics 3rd Ed by S. Pople Syllabus Reference: IGCSE Physics - 0625 CHAPTER TOPIC CHAPTER TOPIC 9.01 9.02 9.03 Magnets Magnetic fields Magnetic effect of current 4.1 4.6.4 The simple phenomenon of magnetism The magnetic effect of a current Learning objectives: In this unit, learners will be introduced to the phenomenon of magnetism. Whilst making students the lifelong learners, the CIE Assessment Objectives (AOs) are mainly kept in consideration during the course of academic practice: AO1 Knowledge with understanding [MCQ-Ext-P2 & Theory Ext-P4 Structured] Questions testing this objective will often begin with one of the following words: define, state, describe, explain (using your knowledge and understanding) or outline. AO2 Handling information and problem solving [MCQ-Ext-P2 & Theory Ext-P4 Structured] Questions testing these skills will often begin with one of the following words: predict, suggest, calculate or determine. AO3 Experimental skills and investigations [Alternate to practical - P6] Demonstrate knowledge of how to safely use techniques, apparatus and materials. plan experiments and investigations, make and record observations, measurements and estimates, interpret and evaluate experimental observations and data, evaluate methods and suggest possible improvements. Learning Outcomes: Students will be able to: Describe the forces between magnets, and between magnets and magnetic materials Give an account of induced magnetism Distinguish between magnetic and non-magnetic materials Describe methods of magnetisation, to include stroking with a magnet, use of d.c. in a coil and hammering in a magnetic field Describe methods of demagnetisation, to include hammering, heating and use of a.c. in a coil Draw the pattern of magnetic field lines around a bar magnet Describe an experiment to identify the pattern of magnetic field lines, including the direction Explain that magnetic forces are due to interactions between magnetic fields Distinguish between the magnetic properties of soft iron and steel Distinguish between the design and use of permanent magnets and electromagnets Resources: Complete Physics for Cambridge IGCSE (Third Edition) By Stephen Pople CIE Syllabus for Physics 0625, IGCSE Physics 0625 Past Papers, CIE Scheme of Work for Teaching Activities & Random (authentic) Internet Resources for pictures, power point presentation, animations & simple lab devices and materials. Lesson No. Methodology L- 1/7 Topic: Magnetism (4.1 Simple phenomenon of Magnetism) (Book chapter 9.01 Magnets) 10 min Introduction: Open with the historic account of when electromagnetism was first discovered and how it has contributed to our technology today. Split the term into two base concepts and take the route of magnetism. Give the students an overview of what they will be learning today. Define magnetism and point out the keywords in the definition. 3 min 20 min 2min Trigger Activity: Place a magnet on the whiteboard and ask the students what they know about the object and their understanding of how it works. Lesson Development: Briefly touch where the word magnet comes from and explain the three main properties of a magnet. Use ppt animations to demonstrate the forces of attraction and repulsion Concept Checkpoint Question 1 Further down the third property to elaborate the concept of ferrous materials. State the origin of term “ferrous” Differentiate between ferrous and non-ferrous materials using examples Interaction Pattern *TT: Teacher Active, Student Receptive *T-S: Teacher & Students Equally Active *TT: Teacher Active, Student Receptive Review Lesson Objectives: Restate the learning objectives covered and provide a sneak-peek of the objectives of the next lesson. Evidence of Learning/Assessment: Student note-taking Concept Checkpoint Question 1 (Next Page) *T-S: Teacher & Students Equally Active Lesson No. Methodology Interaction Pattern L- 2/7 Topic: Magnetism (4.1 Simple phenomenon of Magnetism) (Book chapter 9.01 Magnets) 2 min Recap: Briefly recap the important concepts of the previous lesson and pick up from the end, stating what students will be learning today. Trigger Question: Ask students: “Why are ferrous materials attracted to magnets?” *T-S: Teacher & Students Equally Active Lesson Development: Introduce the concept of induced magnetism. Describe the notion of magnetic domains and development of magnetic poles. Demonstrate the working of magnetic domains in ferrous materials. (video) *TT: Teacher Active, Student Receptive 2 min 10 min 1 min Trigger Question: 18 min Ask students: What happens when induced magnetism fades away? Why do different ferrous materials behave differently? Lesson Development: Describe an experiment to test the induced magnetism in two ferrous materials: iron and steel Introduce the concept of the hard and soft magnetic materials Differentiate between the hard and soft magnetic properties (iron vs steel) Concept Checkpoint Question 2 and Question 3 2 min *T-S: Teacher & Students Equally Active Review Lesson Objectives: Restate the learning objectives covered and provide a sneak-peek of the objectives of the next lesson. Evidence of Learning/Assessment: Student note-taking Concept Checkpoint Question 2 and 3 *T-S: Teacher & Students Equally Active Lesson No. Methodology L- 3/7 Topic: Magnetism (4.1 Simple phenomenon of Magnetism) (Book chapter 9.01 Magnets) 3 min Recap: Briefly recap the important concepts of the previous lesson and pick up from the end, stating what students will be learning today. Trigger Question: Ask students: “How do you make a magnet?” 1 min 16 min 1 min Lesson Development: Define magnetization Describe the three ways to magnetise a ferrous material o Stroking Method o Electrical Method (use of d.c. in coil) o Hammering in a magnetic field How to determine poles of the magnet (in case of both methods) A short in-class demo of the stroking method using a bar magnet *T-S: Teacher & Students Equally Active *TT: Teacher Active, Student Receptive Concept Checkpoint Question 4 and Question 5 Trigger Question: 12 min Interaction Pattern Ask students: “How do you stop a magnet behaving like a magnet?” *T-S: Teacher & Students Equally Active Lesson Development: 2 min Define demagnetization Describe the three ways to demagnetise a ferrous material o Heating o Electrical Method (use of a.c. in coil) o Hammering (Differentiate between this and previous one) Briefly explain the difference between d.c. and a.c. Review Lesson Objectives: Restate the learning objectives covered and provide a sneak-peek of the objectives of the next lesson. Evidence of Learning/Assessment: Student note-taking Concept Checkpoint Question 4 and 5 *TT: Teacher Active, Student Receptive *T-S: Teacher & Students Equally Active Lesson No. Methodology L- 4/7 Topic: Magnetism (4.1 Simple phenomenon of Magnetism) (Book chapter 9.02 Magnetic Fields) 3 min Recap: Briefly recap the important concepts of the previous lesson and pick up from the end, stating what students will be learning today. 15 min Lesson Development: Introduce magnetic fields Draw the magnetic fields around and inside a bar magnet Present variants to build understanding of patterns of fields around: o Two bar magnets (same poles) o Two bar magnets (opposite poles) o Direction of lines of magnetic fields Define strength of magnetic field Explain the neutral point of magnetic field (in case of two same poles) 2 min *T-S: Teacher & Students Equally Active *TT: Teacher Active, Student Receptive Concept Checkpoint Question 6 and Question 7 Trigger Question: 10 min Interaction Pattern Ask students: “How does a compass work?” *T-S: Teacher & Students Equally Active Lesson Development: Describe the magnetic field of the Earth Explain the difference between True North and Magnetic North of the Earth Describe the connection between the direction of magnetic field lines and the compass. 2 min Review Lesson Objectives: Restate the learning objectives covered and provide a sneak-peek of the objectives of the next lesson. Evidence of Learning/Assessment: Student note-taking Concept Checkpoint Question 6 and 7 *TT: Teacher Active, Student Receptive *T-S: Teacher & Students Equally Active Lesson No. Methodology L- 5/7 Topic: Magnetism (4.1 Simple phenomenon of Magnetism) (Book chapter 9.02 Magnetic Fields) 3 min Recap: Briefly recap the important concepts of the previous lesson and pick up from the end, stating what students will be learning today. 15 min In-class Activity: 15 min Plotting lines of fields of a bar magnet using a compass Interaction Pattern *T-S: Teacher & Students Equally Active *T-S: Teacher & Students Equally Active Lesson Development: Distinguish between electromagnets and permanent magnets State examples of usage of electromagnets *TT: Teacher Active, Student Receptive Trigger Question: 2 min Ask students: “Can you think of any other examples of electromagnets?” Review Lesson Objectives: Restate the learning objectives covered and provide a sneak-peek of the objectives of the next lesson. Evidence of Learning/Assessment: Student note-taking Plot graphs *T-S: Teacher & Students Equally Active Lesson No. Methodology L- 6/7 Topic: The magnetic effect of a current (4.6.4 The magnetic effect of a current) (Book chapter 9.03 Magnetic effect of a current) 5 min Recap: Briefly recap the important concepts of the previous lesson and pick up from the end, stating what students will be learning today. 5 min Oral Revision Exercise: 2 min 20 min *T-S: Teacher & Students Equally Active Ask students: “So how do you think electromagnets work? How does the electrical method of magnetization work?” Lesson Development: Explain the development of a magnetic field around current Describe the pattern of this magnetic field in: o Straight wire o Solenoid (coil) Describe methods to determine the direction of magnetic fields and poles o Right-hand grip rule State that the direction of a magnetic field line at a point is the direction of the force on the N pole of a magnet at that point Explain how the strength of magnetic field changes over salient parts Concept Check Questions 8 and Question 9 Review Lesson Objectives: 3 min *T-S: Teacher & Students Equally Active Ask students to orally answer the questions from previously covered topics Trigger Question: Interaction Pattern Restate the learning objectives covered and provide a sneak-peek of the objectives of the next lesson. Evidence of Learning/Assessment: Student note-taking Concept Check Questions 8 & 9 *TT: Teacher Active, Student Receptive Lesson No. Methodology L- 7/7 Topic: The magnetic effect of a current (4.6.4 The magnetic effect of a current) (Book chapter 9.03 Magnetic effect of a current) 3 min Recap: Briefly recap the important concepts of the previous lesson and pick up from the end, stating what students will be learning today. 15 min Lesson Development: Describe the effects on the magnetic field (due to current) by: o Changing magnitude of the current o Changing direction of the current Concept Check Questions 10, Question 11 and Question 12 15 min *T-S: Teacher & Students Equally Active *TT: Teacher Active, Student Receptive Describe the applications of magnetic effect of current o Action of relay Past Paper Exercise: 2 min Interaction Pattern Form groups and ask students to attempt to solve Question No. on page Solve along on with the help of hints and provide final solution on the board Review Lesson Objectives: Restate the learning objectives covered and provide a sneak-peek of the objectives of the next lesson. Evidence of Learning/Assessment: Student note-taking Concept Check Questions 10, 11 & 12 Past Paper Solution *T-S: Teacher & Students Equally Active