Objectives (5 - 7 minutes)

1. Understanding the concept of vaccination and its role in disease prevention:

   • Students should understand what a vaccine is and how it works in the human body to prevent diseases.

2. Knowledge about vaccine-preventable diseases:

   • Students should be able to identify the main diseases that can be prevented through vaccination, as well as the risks associated with these diseases.

3. Perception of the importance of vaccination for collective health:

   • Students should understand the importance of getting vaccinated not only for their own health but also for collective health, contributing to the eradication of diseases.

Secondary Objectives:

• Understanding the structure and functioning of the immune system:

  • Although not the main focus of the lesson, students should have a basic understanding of the immune system to understand how vaccines work.

• Development of research and presentation skills:

  • During the lesson, students will be encouraged to research different types of vaccines and vaccine-preventable diseases and share their findings with the class.

Introduction (10 - 15 minutes)

1. Review of previous content:

   • The teacher should start by recalling the basic concepts of the immune system, briefly explaining how the human body defends itself against diseases. This review is crucial for students to understand the role of vaccines in disease protection.

2. Problem situations:

   • The teacher can present two problem situations to spark students' interest. The first could be the story of Edward Jenner, the scientist who developed the first smallpox vaccine. The second could be the occurrence of recent measles epidemics in some regions of the world due to lack of vaccination. These situations should lead students to reflect on the importance of vaccination.

3. Contextualization:

   • The teacher should emphasize the relevance of the topic, explaining that vaccination is one of the greatest achievements of medicine and plays a fundamental role in disease prevention and health promotion. It can be mentioned that, thanks to vaccination, diseases like smallpox have been eradicated and others, like polio, are close to being eliminated.

4. Introduction of the topic:

   • To arouse students' curiosity, the teacher can share some curiosities about vaccines. For example, they can mention that the word "vaccine" comes from the Latin "vacca," which means "cow," because the first vaccine was developed from a virus found in cows. Another interesting curiosity is that, although some people believe that vaccines cause autism, numerous scientific studies have shown that there is no link between vaccination and autism.

5. Lesson objectives:

   • Finally, the teacher should present the lesson objectives, which are: to understand what vaccination is and how it works, to know the main vaccine-preventable diseases, to understand the importance of vaccination for collective health, and, secondarily, to understand the structure and functioning of the immune system and develop research and presentation skills.

This is the moment for students to ask initial questions and for the teacher to assess the class's prior knowledge on the subject.

Development (20 - 25 minutes)

1. Simulation Activity (10 - 12 minutes): "The Vaccine Game"

   • The teacher should divide the class into groups of 4 to 5 students and provide each group with a set of cards representing different diseases and corresponding vaccines. Each disease card should contain information about the disease, such as symptoms, severity, modes of transmission, etc. Each vaccine card should contain information about the vaccine, such as the causative agent of the disease the vaccine prevents, how the vaccine works, etc.
   • The objective of the game is for each group to find the correct pair of disease and vaccine cards. The first group to find all the correct pairs is the winner.
   • During the game, the teacher should circulate around the room, providing guidance and clarifying doubts. After the game ends, the teacher should lead a discussion with the whole class, reviewing the information on the cards and clarifying any remaining doubts.

2. Practical Activity (10 - 12 minutes): "Building an Immune System"

   • The teacher should provide each group with a set of materials, such as styrofoam balls (representing antigens), toothpicks (representing antibodies), and modeling clay (representing immune system cells).
   • Students should build a model of the immune system on a styrofoam board, inserting the "antigens" (styrofoam balls) and observing how the "antibodies" (toothpicks) and "immune system cells" (modeling clay) react to "eliminate" the antigens.
   • During the activity, the teacher should circulate around the room, guiding the students and clarifying doubts. At the end of the activity, the teacher should lead a discussion with the whole class, reviewing the functioning of the immune system and the importance of vaccines.

3. Group Discussion (5 - 7 minutes): "The Importance of Vaccination"

   • After the activities are completed, the teacher should lead a group discussion on the importance of vaccination. The teacher can start the discussion by asking questions like: "Why is it important to get vaccinated?" and "What can be the consequences of not getting vaccinated?" Students should be encouraged to express their opinions and share what they learned during the lesson.
   • The teacher should guide the discussion, ensuring that all important aspects are covered and that any incorrect information is corrected. Additionally, the teacher should emphasize the importance of trusting scientifically-based information and demystifying any myths or misconceptions about vaccines.

These activities are designed to be interactive, stimulating active student participation and facilitating the understanding of vaccination concepts, vaccine-preventable diseases, and the importance of vaccination for collective health.

Return (8 - 10 minutes)

1. Group Discussion (3 - 4 minutes): "Reflecting on the Activities"

   • The teacher should gather all the students and promote a group discussion about the activities carried out. Each group, in rotation, should share their solutions or conclusions, as well as the difficulties encountered during the activity. The teacher should encourage students to make connections between the activities and the theoretical concepts discussed in the lesson.
   • This is an opportunity for students to learn from each other, sharing different perspectives and approaches. The teacher should facilitate the discussion, asking questions that stimulate student reflection and clarifying any misunderstandings.

2. Learning Verification (2 - 3 minutes): "What Did We Learn?"

   • The teacher should quickly review the main concepts discussed during the lesson, reinforcing the importance of vaccination for individual and collective health, and the contribution of vaccines in disease prevention. The teacher can ask direct questions to the students to verify understanding and clarify any remaining doubts.
   • This step is crucial to ensure that students have understood the fundamental concepts and can apply them in real situations.

3. Connection with Theory (2 - 3 minutes): "How Does This Connect with Reality?"

   • The teacher should guide students to reflect on how the concepts learned in the lesson apply to everyday life. For example, they can discuss vaccination campaigns that occur regularly, news about outbreaks of vaccine-preventable diseases due to lack of immunization, among others.
   • This is an opportunity for students to realize the relevance of what they have learned and how they can apply this knowledge to make informed decisions about their own health and the health of the community they live in.

4. Feedback and Closure (1 minute): "How Was the Lesson?"

   • Finally, the teacher should ask for feedback from the students about the lesson. The teacher can ask questions like: "What did you think of the activities?" and "What did you think of the way the topic was approached?" The goal is to get feedback from the students to improve future lessons and ensure that students' needs and expectations are met.
   • After the feedback, the teacher should close the lesson, reinforcing the main points discussed and reminding students of the content of the next lesson.

This Return stage is crucial to consolidate learning and ensure that students have understood the fundamental concepts of the lesson. Additionally, student feedback is a valuable tool for the teacher to improve their teaching practices and make future lessons even more effective and engaging.

Conclusion (5 - 7 minutes)

1. Summary of Content (2 - 3 minutes):

   • The teacher should start the Conclusion by recapping the main points discussed during the lesson. This includes the concept of vaccination, the role of vaccines in disease prevention, the main diseases that can be prevented by vaccination, the basic structure and functioning of the immune system, and the importance of vaccination for collective health.
   • The teacher should reinforce these concepts, reminding students of the relevance and applicability of this knowledge in their daily lives.

2. Connection between Theory, Practice, and Applications (1 - 2 minutes):

   • The teacher should explain how the practical activities carried out during the lesson helped reinforce students' theoretical understanding of vaccination and the immune system.
   • The teacher should emphasize how the acquired knowledge can be applied in real life, highlighting the importance of vaccination for disease prevention and health promotion.

3. Supplementary Materials (1 - 2 minutes):

   • The teacher should suggest additional reading and study materials for students who want to deepen their knowledge on the subject. This can include books, articles, documentaries, reliable health websites, among others.
   • The teacher can, for example, recommend the documentary "Vaccinated: Our Lives, Our Choices" from the Netflix series "Pandemic," which explores the history and importance of vaccination.

4. Relevance of the Topic (1 minute):

   • Finally, the teacher should reinforce the importance of the topic discussed for daily life. It should be remembered that vaccination is an effective way to prevent diseases and that the decision to get vaccinated affects not only individual health but also collective health.
   • The teacher should encourage students to apply the acquired knowledge, for example, by encouraging themselves and their families to stay up-to-date with the recommended vaccines for their ages and health conditions, and to trust scientifically-based information about vaccines.

The Conclusion is an important step to consolidate learning and motivate students to continue studying the subject. Additionally, by reinforcing the relevance of the topic, the teacher helps students see science as something relevant and applicable in their lives, which can increase their interest and engagement.