Lesson Plan | Technical Methodology | Introduction to Organic Chemistry: Organic Series

Objectives

Duration: 10 to 15 minutes

The purpose of this stage is to ensure that students clearly understand the lesson objectives and what is expected of them to learn. This is crucial for the development of practical skills relevant to the topic of organic series. Additionally, by connecting learning with the job market, students will see the applicability of their knowledge in real situations, which increases engagement and motivation.

Main Objectives

1. Understand the concept of organic series and identify isologous, homologous, and heterologous series.

2. Apply the acquired knowledge to find compounds belonging to an organic series.

Side Objectives

1. Develop critical analysis and problem-solving skills in organic chemistry.
2. Foster teamwork and effective communication skills among students.

Introduction

Duration: 10 to 15 minutes

The purpose of this stage is to ensure that students clearly understand the lesson objectives and what is expected of them to learn. This is crucial for the development of practical skills relevant to the topic of organic series. Additionally, by connecting learning with the job market, students will see the applicability of their knowledge in real situations, which increases engagement and motivation.

Contextualization

Organic Chemistry is the foundation of many modern industries, including pharmaceuticals, petrochemicals, food, and cosmetics. Understanding how organic molecules are classified and how they behave is fundamental for innovating and developing new products that we use daily, such as medications, plastics, and fragrances.

Curiosities and Market Connection

Curiosity: Did you know that aspirin, one of the most widely used medications in the world, is an organic compound belonging to a homologous series of carboxylic acids?
Market Connection: Professionals working in research and development laboratories, such as chemists and pharmacists, often use knowledge about organic series to create new compounds with desirable properties. Companies like Bayer and Pfizer rely on this knowledge to constantly innovate.

Initial Activity

Provocative Question: What is the difference between the gasoline and diesel we use in our vehicles?
Short Video: Show a 3-minute video about the importance of organic series in the manufacturing of medications. Suggestion: A video from Khan Academy about 'Introduction to Organic Chemistry.'

Development

Duration: 45 to 50 minutes

The purpose of this stage is to deepen students' knowledge of organic series, providing a practical experience of building and classifying compounds. This will allow students to apply the theoretical concepts learned, developing practical and analytical skills essential for the job market.

Covered Topics

1. Definition of organic series
2. Identification of isologous series
3. Identification of homologous series
4. Identification of heterologous series

Reflections on the Theme

Guide students to reflect on the importance of identifying and classifying organic compounds in specific series. Ask how this skill can be useful in various industries, such as pharmaceuticals and petrochemicals. Encourage them to think about how knowledge of organic series can contribute to innovation and product development.

Mini Challenge

Construction of Molecular Models

Students will build molecular models using molecular modeling kits to identify and classify organic compounds into isologous, homologous, and heterologous series.

Instructions

1. Divide students into groups of 4 to 5 members.
2. Distribute molecular modeling kits to each group.
3. Provide a list of organic compounds to each group.
4. Ask students to construct the molecular models of the listed compounds.
5. Guide the groups to identify and classify the constructed models into isologous, homologous, and heterologous series.
6. Request each group to present their classifications and justifications to the class.

Objective: Facilitate practical understanding of organic series through the construction and classification of molecular models.

Duration: 30 to 35 minutes

Evaluation Exercises

1. List two characteristics that differentiate homologous series from isologous series.
2. Give an example of a heterologous series and explain why it fits this category.
3. Identify the organic series (isologous, homologous, or heterologous) of the following compounds: ethane, ethene, ethyne.
4. Explain the importance of identifying organic series in the pharmaceutical industry.

Conclusion

Duration: 10 to 15 minutes

The purpose of this stage is to consolidate the knowledge acquired during the class, allowing students to reflect on what they learned and how they can apply this knowledge in real situations. By promoting a discussion and recapping the main points, the teacher ensures that students understand the importance of the topic and feel motivated to continue exploring Organic Chemistry.

Discussion

Promote an open discussion with students about what they learned during the class. Encourage them to share their reflections on the importance of identifying and classifying organic series, and how these skills can be applied in different industries. Ask students how they felt working in teams to build molecular models and if they encountered challenges during the activity. Stimulate them to think about other everyday situations or job market scenarios where knowledge of organic series can be useful.

Summary

Summarize the main content presented during the class, emphasizing the definition and identification of isologous, homologous, and heterologous series. Remind students of the importance of being able to classify organic compounds and how this is essential in various industries, such as pharmaceuticals and petrochemicals. Reinforce the connection between the theory learned and the practice carried out in constructing the molecular models.

Closing

Briefly explain how the class integrated theory, practice, and real applications, highlighting the relevance of the knowledge gained. Emphasize the importance of the subject for daily life, mentioning practical examples such as the creation of medications and fuels. Thank students for their active participation and reinforce the importance of continuing to explore and apply the concepts learned.