Objectives (5 - 10 minutes)

1. Understand the concept of magnetic flux and its importance in the theory of magnetism.

   • Identify the quantities involved in magnetic flux and how they relate.
   • Recognize the unit of measurement of magnetic flux.

2. Apply the formula for magnetic flux to solve practical problems.

   • Develop calculation skills using the formula for magnetic flux.
   • Interpret practical problems and apply the magnetic flux formula to find the solution.

3. Relate the concept of magnetic flux to real and technological situations.

   • Identify examples of applications of magnetic flux in everyday life and technology.
   • Understand how magnetic flux is used in electromagnetic devices, such as motors and generators.

Secondary Objectives:

• Foster critical thinking and problem-solving skills by applying the theory of magnetic flux in practical situations.
• Stimulate curiosity and interest in Physics, showing how theoretical concepts apply in the real world.
• Develop teamwork skills by encouraging discussion and joint problem-solving.

Introduction (10 - 15 minutes)

1. Review of Previous Content

   • The teacher starts the lesson by reviewing the concepts of magnetic field and magnetism, as these are fundamental to understanding the topic of the day. (3 - 5 minutes)
   • It is important for students to have a good understanding of these concepts, as magnetic flux is a quantity that is directly related to the magnetic field. (2 - 3 minutes)

2. Problem Situation 1: The Mystery of Bird Flight

   • The teacher presents a problem situation involving bird flight and its relationship with the Earth's magnetic field. He asks the students: "How do birds manage to orient themselves during their long and complex migrations?" and "What is the role of the Earth's magnetic field in this process?" This problem situation serves to instigate students' curiosity and show a real and interesting application of the magnetic field concept. (3 - 4 minutes)

3. Problem Situation 2: The Challenge of the Electric Motor

   • The teacher proposes another challenge: "How does an electric motor work?" He asks students to think about this and try to find an answer based on what they have learned so far about magnetism and magnetic fields. (2 - 3 minutes)
   • This problem situation serves to introduce the topic of magnetic flux, which is essential to understand the operation of electric motors, among other electromagnetic devices.

4. Contextualization of the topic's importance

   • The teacher then contextualizes the importance of the topic, explaining that magnetic flux is a fundamental quantity to understand the operation of many electromagnetic devices we use in our daily lives, such as motors, generators, transformers, among others. (2 - 3 minutes)
   • He also mentions that the study of magnetic flux has applications in various areas of science and technology, from the geolocation of migratory birds to the development of new materials and devices for industry and medicine.

5. Introduction to the Topic

   • The teacher then introduces the topic of the lesson: magnetic flux. He explains that magnetic flux is the amount of magnetic field that crosses a surface. (1 - 2 minutes)
   • He also mentions that to calculate magnetic flux, it is necessary to multiply the value of the magnetic field by the area of the surface perpendicular to it. (1 - 2 minutes)
   • Finally, he presents the lesson's objective and what will be covered during the session.

Development (20 - 25 minutes)

1. Activity 1: "Building a Simple Motor" (10 - 12 minutes)

   • For this activity, the teacher will divide the class into groups of up to 5 students. Each group will receive a kit of materials to assemble a simple electric motor. (3 - 4 minutes)
   • Before starting the activity, the teacher will distribute a step-by-step guide for motor assembly and briefly explain how each motor component (wire, magnets, battery) contributes to the generation of magnetic flux. (2 - 3 minutes)
   • The students will then follow the guide to assemble the motor. During the activity, the teacher will circulate around the room, assisting the groups and clarifying doubts. (5 - 6 minutes)
   • After assembly, the teacher will encourage students to observe the motor's operation and discuss how magnetic flux is involved in the motion generation process. (2 - 3 minutes)

2. Activity 2: "Applying the Magnetic Flux Formula" (10 - 12 minutes)

   • In this activity, the teacher will present the magnetic flux formula (Φ = B * A * cos(θ)) and some problems for students to solve in their groups. (2 - 3 minutes)
   • The problems will involve applying the magnetic flux formula to calculate the magnetic flux through different surfaces, given information about the magnetic field and the surface orientation. (5 - 6 minutes)
   • The students will then work in their groups to solve the problems. The teacher will circulate around the room, assisting groups that encounter difficulties and providing feedback on the proposed solutions. (3 - 4 minutes)
   • At the end of the activity, the teacher will ask some groups to present their solutions to the class, promoting a discussion about the different methods used and the strategies employed to solve the problems. (2 - 3 minutes)

3. Activity 3: "Debates on Applications of Magnetic Flux" (5 - 7 minutes)

   • For this activity, the teacher proposes that student groups discuss and prepare quick presentations on the applications of magnetic flux in different contexts, such as in the generation of electrical energy, in the operation of motors and generators, in medicine, in industry, among others. (2 - 3 minutes)
   • The groups will have a limited time to prepare their presentations. The teacher will provide resources (books, internet, etc.) so that students can research more about the applications of magnetic flux. (2 - 3 minutes)
   • Each group will present their findings to the class. During the presentations, the teacher will encourage active participation from all students, promoting questions and discussions about the applications of magnetic flux. (1 - 2 minutes)

4. Conclusion of Development

   • After completing the activities, the teacher will briefly recap the concepts covered and the solutions found by the students. (1 - 2 minutes)
   • He will also highlight the importance of magnetic flux for the operation of various devices and technologies, reinforcing the relevance of the topic studied. (1 - 2 minutes)
   • Finally, the teacher will encourage students to continue exploring the topic at home, either through additional readings or through simple experiments that can be done with everyday materials.

Return (10 - 15 minutes)

1. Group Discussion (5 - 7 minutes)

   • The teacher will gather all students in a large circle for a group discussion. Each group will then have 2 - 3 minutes to share their solutions or conclusions from the activities.
   • During the group presentations, the teacher will encourage other students to ask questions or give feedback, thus promoting an interactive and collaborative discussion.
   • The teacher will also use this time to clarify any misunderstandings that may have arisen during the activities and to reinforce the key points of the lesson.

2. Connection to Theory (2 - 3 minutes)

   • After all presentations, the teacher will summarize the main discoveries or conclusions of the students and how they connect to the theory of magnetic flux.
   • The teacher will also take this opportunity to reinforce the most important theoretical concepts, clarify any remaining doubts, and highlight the skills that students developed during the lesson.

3. Individual Reflection (2 - 3 minutes)

   • The teacher will propose a moment of individual reflection, in which students will have a minute to silently think about what they learned in the lesson. During this time, the teacher will ask some questions to guide the reflection, such as:
     1. "What was the most important concept you learned today?"
     2. "What questions have not been answered yet?"
     3. "How does what you learned today apply to the real world?"
   • The teacher will encourage students to write down their answers so they can review them later or discuss them in the next lesson.

4. Feedback and Closure (1 - 2 minutes)

   • Finally, the teacher will ask for feedback from students about the lesson. He may ask questions like: "What did you like most about today's lesson?" and "What could be improved for the next lessons?".
   • The teacher will thank everyone for their participation and effort, and reinforce the importance of the topic studied for understanding everyday phenomena and modern technology.
   • He will end the lesson by reminding students about study materials and tasks for the next lesson.

This Return is a crucial step to consolidate students' learning, as it allows them to reflect on what they have learned, make connections with the theory, and discuss their discoveries. In addition, students' feedback is a valuable tool for the teacher to assess the effectiveness of their teaching strategies and make adjustments if necessary.

Conclusion (5 - 7 minutes)

1. Summary and Recapitulation (1 - 2 minutes)

   • The teacher will give a brief summary of the main points covered during the lesson. He will recap the concepts of magnetic flux, the formula for its calculation, and its practical applications.
   • He will reinforce the importance of magnetic flux for the operation of various devices and technologies, highlighting the examples discussed during the lesson.

2. Connecting Theory to Practice (1 - 2 minutes)

   • The teacher will explain how the lesson connected the theory of magnetic flux to practice through the activities carried out. He will highlight how the magnetic flux formula was applied to solve practical problems and how experiments with the simple motor helped visualize and understand the concept of magnetic flux in practice.

3. Extra Materials (1 - 2 minutes)

   • The teacher will suggest some extra materials for students who wish to deepen their knowledge on the subject. This may include explanatory videos, interactive simulation websites, textbooks, among others.
   • He may also propose simple experiments to be carried out at home with everyday materials, as a fun and practical way to explore more about magnetic flux.

4. Relevance of the Subject (1 minute)

   • To conclude, the teacher will emphasize the importance of magnetic flux in everyday life, reinforcing some of the applications already discussed.
   • He will also encourage students to observe their surroundings and think of other examples of how magnetic flux may be present in their lives, thus reinforcing the relevance of the topic studied.

The Conclusion is a crucial stage of the lesson plan, as it provides an opportunity for the teacher to recap the main learning points, make connections between theory and practice, and encourage students to continue exploring the subject on their own. Additionally, by highlighting the relevance of the topic, the Conclusion helps reinforce the importance and applicability of what was learned, motivating students to engage more with the subject.