Contextualization

Organic Chemistry is one of the most fascinating disciplines, not only due to its intrinsic complexity, but also because of its direct application in our daily lives. The fruits of this integral part of chemistry can be seen everywhere, from medicines to cleaning products, genetic decoders, and building materials. Among this vast array of applications, a specific area stands out: substitution reactions.

Essentially, substitution reactions occur when an atom or group of atoms in a molecule is replaced by another. Simple in concept, complex in its nuances, these reactions are the foundation of many chemical procedures used in industry and research. Without these reactions, many of the materials, medicines, and products we regularly use would not exist.

On a macroscopic level, understanding substitution reactions leads to innovation in creating new materials and medicines. On a microscopic scale, understanding the nuances of these reactions helps us comprehend how life's building blocks - proteins, nucleic acids, carbohydrates, and lipids - are formed and modified in our cells.

Considering the breadth of their applications and the complexity of their concepts, it is vital to have a solid understanding of substitution reactions. Not only for those who wish to pursue a career in chemistry, but also for those seeking a deeper understanding of how the world around us functions.

Practical Activity

Activity Title: "The Substitution in Practice: A Detailed Study of Substitution Reactions"

Project Objective

The project's objective is to highlight the importance of substitution reactions in different contexts, from the production of medicines to the synthesis of industrial polymers. Students will be encouraged to explore, understand, and apply knowledge of four main theoretical topics, including:

1. Types of substitution reactions.
2. Factors influencing substitution reactions.
3. Use of catalysts in substitution reactions.
4. Application of substitution reactions in the real world.

Detailed Project Description

Students will be grouped into teams of 3 to 5 members. Each team will have to choose a substitution reaction, research about it, and present their findings through a video presentation and a written report. Each group must choose a different reaction, thus avoiding repetitions.

Required Materials

1. Class notes on substitution reactions.
2. Research materials (internet, books, scientific journals).
3. Equipment for filming and editing a video (can be a smartphone).
4. Video editing software (freely available on the web).
5. Software for writing and formatting reports (Microsoft Word, Google Docs, etc.)

Detailed Step-by-Step for Activity Execution

Step 1: Selection and Research Each team selects a substitution reaction to research. They should gather information about the different aspects of the reaction, including types of reactions, factors influencing the reaction, use of catalysts, and real-world applications.

Step 2: Script Creation After the research, teams must create a detailed script for their explanatory video. The script should include an introduction to the topic, a theoretical explanation of the concepts, the presentation of the selected reaction, and its practical applications.

Step 3: Filming and Editing Teams will record and edit their videos according to the created script. The video should be clear, informative, and engaging.

Step 4: Report Writing In parallel with creating the video, students must write a detailed report addressing the main theoretical topics. The report should explain the theory behind substitution reactions, detail the specific reaction the group chose, discuss the research results, and the practical applications of the reaction.

Project Deliverables

The project will consist of two main parts:

1. Explanatory Video: The video should contain a detailed explanation of the substitution reaction chosen by the group, the role of catalysts, types of substitution reactions, and practical applications of the reaction.

2. Written Report: The report should follow the structure of introduction, development, conclusions, and bibliography used. The introduction should contextualize the importance of substitution reactions. The development should contain the theory behind substitution reactions, the research methodology adopted, and the results obtained. The conclusions should summarize the main points, discuss the learnings, and observations about the project. The bibliography should list all sources used in the research.

This work will develop technical skills in each student, especially a deep understanding of substitution reactions, and socio-emotional skills such as teamwork, time management, problem-solving, creative thinking, and proactivity.