School LEON MEDIANA NATIONAL HIGH SCHOOL DETAILED Teacher ANGELIQUE O. CONTURNO LESSON PLAN Teaching OCTOBER 8, 2023 Dates 10:00 – 11:00AM and Time I. Learning Area Quarter SCIENCE 3rd Lesson 6 OBJECTIVES A. Content Standards B. Performance Standards C. Learning Competencies/Objectives Write the LC code for each D. Specific Objectives: (Daily Task) II. 7 Grade Level CONTENT (Earth and Space, Biology, Chemistry, Physics) The learners demonstrate an understanding of charges and the different charging processes. The learners demonstrate an understanding of electric power and electric energy. Describe the different types of charging processes. (S7LT-IIIj-13) Objectives: After this lesson, the students should be able to: 1. identify the types of electric charges; 2. describe the different types of charging processes; and 3. formulate a proposal for a school project to educate peers about the various charging processes used in everyday life, including USB charging, wireless charging, etc., with an emphasis on safety and sustainability. Physics Topic: Electricity Subtopic: Electric Charges and Charging Processes Key concepts: Electric charges are of two general types: positive and negative. The interaction between electric charges is called electricity. The charging by friction process involves rubbing of one particle on another resulting in electrons moving from one surface to another. The charging by conduction process involves touching a charged particle to a conductive material. The charging by induction process involves charging an object without actually touching it to any other charged object. LEARNING RESOURCES A. References III. 1. Teacher’s Guide pages 2. Learner’s Material pages 3. Textbook pages and Websites 4. Additional Materials from Learning Resource (LR portal) B. Other Learning Resources 1. EASE Physics. Module 6. Lesson 2. 2. Science and Technology IV: Physics Textbook for Fourth Year. Rabago, Lilia M., Ph.D., et al. 2001. P. 290. 1. EASE Physics. Module 6. Lesson 2. 2. Science and Technology IV: Physics Textbook for Fourth Year. Rabago, Lilia M., Ph.D., et al. 2001. P. 290. Encyclopedia Britannica, byjus.com 1. Science – Grade 7 Most Essential Learning Competency (MELC) 2. Curriculum Guide Grade 7 Science PPT of the lesson, Google images, Laptop IV. PROCEDURES Preliminary Activities TEACHER’S ACTIVITY Good afternoon class! How is your day so far? STUDENT’S ACTIVITY Good afternoon, Ma’am. We are fine. That’s good to hear! So, can I expect a full blast of energy and active participation from you? Yes Ma’am. Before we begin the lesson this afternoon, let us ask the guidance of Almighty God and let us enlighten our minds to completely understand the lesson this afternoon. Would you please lead the prayer? (Student will lead the prayer) I would like to request everyone to please arrange your chairs properly and make sure there is no trash around you. (Students will arrange their chairs and pick up the trash.) I think everyone is present. I’m so glad that everyone understands the reasons for coming to school regularly. A. Reviewing the previous lesson or presenting the new lesson. (ELICIT) Game: Match Made in Heaven “Students, as you can see, you are given two sets of pictures. Your task is to find the picture in column B that best represents the opposite of the picture in column A. Are you ready?” COLUMN A 1. 2. 3. 4. 5. “Yes, Ma’am” COLUMN B 1. The picture 1 in column A matches the picture 3 in column B. 2. The picture 2 in column A matches the picture 1in column B. 3. The picture 3 in column A matches the picture 5 in column B. 4. The picture 4 in column A matches the picture 2 in column B. 5. The picture 5 in column A matches the picture 4 in column B. “Very excellent performance students! Now that you have successfully matched the pictures in columns A and B, I know that you’re ready to learn our next topic.” B. Establishing a purpose for the lesson. (ENGAGE) Magic or Nah? The teacher will choose two students to perform the balloon and tissue paper demonstration that shows how electric charges behave. The students will observe the demonstration and will be asked using the POE scheme. The teacher will use the POE scheme: PREDICT OBSERVE EXPLAIN What an excellent performance everyone! So today class, we will be dealing with Electric Charges and Charging Processes. C. Presenting examples/instances of the new lesson. (EXPLORE) “This time, we will perform an activity entitled “Attracted or Not?”.” Pre-laboratory The teacher will group the students accordingly. “I will group you into 3; column 1 will be the group 1, column 2 will be the group 2, and column 3 will be the group 3.” The teacher will distribute the activity sheets to the group representative. Students will go to their respective groups. “Who is the leader of each group? Kindly get your activity sheets here.” Discussion of the procedure and reminding the students to read carefully the activity sheets. “Students, please read carefully all the instructions and procedures stated in your activity sheets.” Laboratory Proper The teacher will monitor the progress of every group and remind them to record all their observations. Students will read their activity sheets and prepare all the materials needed. After performing this activity, the students should be able to: 1. To demonstrate the attraction and repulsion between charged bodies. 2. To demonstrate charging by friction, charging with conduction, and charging with induction. Problem: 1. What is charging by friction? 2. What is charging by conduction? 3. What is charging by induction? Part A. Materials for the Group 1: plastic comb Procedure: 1. Rub the plastic comb back and forth quickly on your hair, shirt, or wool sweater. 2. Observe and record what happens in table provided. Part B Materials for the Group 2: Balloons Paper Scissors Procedure: 3. Use your scissors to cut out small squares of paper about 1 centimeter on each side. Lay them out near each other on a table. 4. Inflate the balloon and tie it. Rub the balloon back and forth quickly on your hair, shirt, or sweater. 1. Bring the balloon close to the paper squares. 2. Observe and record what happens in the table provided. Part C. Materials for the Group 3: handkerchief/towel two plastic straws flat top container Procedure: 1. Rub the first plastic straw with the handkerchief or towel and place it at the top of the container. 2. Rub the other straw with the cloth and bring it near to the first straw. 3. Observe and record what happens in the table provided. Students will reach out to the teacher for clarification. Students will answer the questions in the activity sheets based on their observations during the laboratory. Post-laboratory Assist the learners in answering the questions in activity sheets. D. Discuss new concepts and practicing new skills #1. (EXPLAIN) “Based on your observation, I will ask you some questions regarding the activity you performed a while ago. I need one representative per group to present their observations here at the front.” Each group will choose their representative. In Group 1, what did you observe after you The comb attracts the rubbed the plastic comb into your hair? hair. In Group 2, what did you observe after you brought the balloon close to the paper The balloon attracts the squares? paper. In Group 3, what did you observe after the straws came near to each other? E. Discussing new concepts and practicing new skills #2 (ELABORATE) Recall that matter is composed of tiny molecules. Each tiny molecule exhibits the properties of a particular kind of matter. It is also made up of atoms, which are further made up of protons, electrons, and neutrons. Electrons, which carry a negative charge (-), move around the dense central part of the atom called the nucleus. Protons, however, carry a positive charge (+). The charge of the body is expressed in coulomb (C). Both electrons and protons have a charge of 1.6 × 10-19 C, but have opposite signs. The neutrons carry no charge at all. The process by which a body is given a charge is known as electrification. The result of the subsequent experiments led to the development of the law of charges, which states that “Like charges repel, while unlike charges attract.” Opposite charges, such as positive and negative, attract each other, while like charges, such as positive and positive or negative and negative, repel each other. The straws repel each other. When an object carries a negative charge, it possesses an excess of electrons compared to protons. Conversely, a positive charge indicates an excess of protons relative to electrons. In our activity performed by Group 1, a while ago, when you run a comb into your hair some electrons from your hair are transferred to the comb. As a result, the comb becomes negatively charged, and our hair is left with a positive charge. It’s important to note that when an equal number of positive and negative charges are present, they cancel each other out, resulting in a neutral state for the object. Yet how are electrons transferred from one body to another? Methods of Charging The process of supplying electric charge to an object or causing it to lose electric charge is referred to as charging. There are three distinct methods by which an initially uncharged object can acquire charge: 1. Charging by friction 2. Charging by conduction 3. Charging by induction 2. Charging by Friction When two objects are rubbed against each other, a transfer of charge occurs. In this process, one of the objects loses electrons while the other gains electrons. The object losing electrons becomes positively charged, while the object gaining electrons becomes negatively charged. This phenomenon, where both objects become charged due to friction, is commonly known as electrification by friction. This method is useful for charging insulators. 2. Charging by Conduction Charging by conduction involves bringing an uncharged object close to a charged object. If the charged object has an unequal number of protons and electrons, the uncharged object will discharge electrons to achieve stability. This transfer of charge through contact is known as charging by conduction. This method is useful for charging conductors. 3. Charging by Induction Charging by induction refers to the process of charging an uncharged object by merely bringing it close to a charged object, without any direct physical contact. Through induction, the charged object induces a redistribution of charges in the uncharged object, resulting in the acquisition of charge. By understanding these different methods of charging, we can explore the fascinating ways in which objects become charged through friction, contact, or proximity. The study of charging provides valuable insights into the behavior and interaction of electric charges in various scenarios. The movement or flow of charged particles is what produces electricity and magnetism. A moving stream of electric charge is electric current. Electric current, in simple words, is the flow of tiny particles called electrons through a conductor like a wire. It's similar to how water flows in a river. When electrons move through a wire, we get electricity, which can power devices and perform various tasks. F. Developing mastery (Leads to Formative Assessment 3). The teacher will flash the questions on the screen. Direction: Given the situation below, identify which type of charging process it represents. Situation 1: Imagine you have a balloon, and you rub it against your hair vigorously. Afterward, you notice that the balloon sticks to the wall. What type of charging process does it represent? Situation 2: You have a positively charged plastic rod, and you bring it close to a neutral metal sphere without touching it. What type of charging process does it represent? Situation 3: You have two metal objects, a positively charged metal sphere, and a neutral metal rod. You connect them using a metal wire. What type of charging process does it represent? G. Finding practical applications of concepts and skills in daily living. (EXTEND) H. Making generalizations and abstractions about the lesson. Charging by friction Charging by induction Charging by conduction Why it is important to know the electric Answers may vary. charges and the benefits and harms brought by electricity? Abstraction: The teacher will read the summary of the lesson to the students. Electric charge comes in two main types: positive and negative charges. Opposite charges, attract each other, while like charges, repel each other. The charging by friction process involves rubbing of one particle on another resulting in electrons moving from one surface to another. The charging by conduction process involves touching a charged particle to a conductive material. Induction charging is a charging method that charges an object without actually touching the object to any other charged object. Improved quality of life, economic growth, medical advancements, environmental benefits, and education are some of the advantages brought by electricity. The disadvantages brought by electricity are the following: dependence, cost, impact, safety, and infrastructure. Generalization: The teacher will let the students share what they have learned for today’s lesson by asking them questions. 1. What are the two types of charge? 2. What are the three charging processes? I. Evaluating learning (EVALUATE) 1. Positive and Negative Charge 2. Charging by friction, charging by conduction, and charging by induction. “Okay class, do you have any questions?” “It seems that it is already clear to you; please prepare 1 whole set sheet of paper. I’ll give you two types of tests. Please write your name, grade and section, and the date today.” Test 1. Identify if it is attraction or repulsion. (1 pts) Answer key Test 1 1. repulsion 2. repulsion 3. attraction 1. 2. Test 2 4. conduction 5. induction 3. Test 2. Identify what method of charging is described below. 4. In this situation, you can charge the neutral metal sphere by bringing the negatively charged balloon into direct contact with the sphere. The charges from the balloon will transfer to the sphere, leaving it with the same negative charge as the balloon. What charging process is involved in this situation? 5. In this situation, you can charge the neutral metal sphere positively by bringing a negatively charged object (e.g., a negatively charged rod) close to the sphere without allowing it to touch. The negative charges on the rod will repel the electrons in the sphere, leaving it with a net positive charge. What charging process is involved in this situation? The teacher will give instructions about their assignment. J. Additional activities for application or remediation. V. REMARKS VI. REFLECTION A. No. of learners who earned 80% on the formative assessment B. No. of learners who require additional activities for remediation. C. Did the remedial lessons work? No. of learners who caught up with the lesson. Direction: I will group you into 5 groups. Each group will create a brochure to educate peers about the various charging processes used in everyday life, including USB charging, wireless charging, etc., with an emphasis on safety and sustainability. D. No. of learners who continue to require remediation. E. Which teaching strategies worked well? Why did this work? F. What difficulties did I encounter that my principal or supervisor can help me solve? G. What innovation or localized materials did I use/discover that I wish to share with other teachers? Prepared by: ANGELIQUE O. CONTURNO Student Teacher Iloilo Science and Technology University Checked by: DR. REAH ANN A. TORRES Associate Professor IV Iloilo Science and Technology University