Lesson Plan | Teachy Methodology | Organic Functions: Aldehyde

Objectives

Duration: 10 - 15 minutes

The purpose of this stage is to ensure that students understand the key objectives of the lesson and know exactly what is expected of them to learn. This will serve as a foundation for all subsequent activities and ensure that everyone is aligned regarding the concepts that will be deepened.

Main Objectives

1. Understand the chemical structure of aldehydes and how to identify them.

2. Differentiate aldehydes from ketones highlighting their main structural and functional differences.

3. Explore the physical and chemical properties of aldehydes.

Side Objectives

1. Establish the connection between organic functions and everyday situations.
2. Encourage discussion and critical thinking about the application of the studied concepts.

Introduction

Duration: 10 - 15 minutes

The purpose of this stage is to capture students' initial interest and stimulate curiosity about the topic. By using cell phone technology to look up information, students engage more dynamically with the content. Furthermore, the key questions encourage critical thinking and a review of the knowledge they have previously acquired, preparing them for the practical activities and deepening that will follow.

Warming Up

To start the lesson on aldehydes, briefly explain that aldehydes are a class of organic compounds characterized by the presence of the functional group -CHO. They are widely found in nature and have important applications in industry, from fragrances to medicines. Next, ask students to use their cell phones to look up an interesting fact about aldehydes, which could be a practical application, a historical curiosity, or an example of a common aldehyde in everyday life. After the search, each student should share the fact they found with the class.

Initial Reflections

1. What is the main structural characteristic that defines aldehydes?

2. How do aldehydes differ from ketones in terms of chemical structure?

3. What are some typical physical properties of aldehydes?

4. Can you name examples of aldehydes that we encounter in our daily lives?

5. What are some important industrial or commercial applications of aldehydes?

Development

Duration: 70 - 80 minutes

The purpose of this stage is to engage students in practical activities that solidify their understanding of aldehydes, utilizing digital technologies to make learning more dynamic and connected with modern reality. The proposed activities encourage collaboration, creativity, and the application of acquired knowledge in real and relevant contexts.

Activity Suggestions

It is recommended that only one of the suggested activities be carried out

Activity 1 - 🧪 Create Your Own Perfume!

> Duration: 60 - 70 minutes

- Objective: Understand the properties of aldehydes and their applications in the fragrance industry, while developing digital communication skills.

- Description: In this activity, students will explore the world of aldehydes in the fragrance industry. Working in groups, they must create an advertising campaign for a fictional perfume that contains a specific aldehyde as the main ingredient. The campaign can include social media posts, promotional videos, and even memes.

- Instructions:

• Divide students into groups of up to 5 people.

• Each group should choose a common aldehyde used in the fragrance industry (e.g., benzaldehyde, vanillin, etc.).

• Using cell phones and computers, students should research the characteristics and properties of the chosen aldehyde, as well as its application in fragrances.

• Each group must create an advertising campaign for the perfume using digital tools such as short videos, Instagram posts, TikToks, and memes.

• Students should present the campaign to the class, explaining their choice of aldehyde and how it contributes to the perfume.

Activity 2 - 🕵️‍♂️ Chemical Detectives!

> Duration: 60 - 70 minutes

- Objective: Develop problem-solving and scientific research skills, applying organic chemistry concepts in a playful and engaging manner.

- Description: Students will participate in a gamified activity where they must solve a mystery using concepts related to aldehydes. Each group will receive digital clues and challenges that will lead them to discover which aldehyde is present in a mysterious substance.

- Instructions:

• Divide students into groups of up to 5 people.

• Provide a list of clues and digital challenges. The clues can be QR codes scattered around the room or links sent via an online platform.

• Each clue should lead students to solve a chemical problem or conduct research on a specific aldehyde.

• Students must record their findings and, at the end, present which aldehyde is present in the mysterious substance, justifying their answer based on the clues and research conducted.

Activity 3 - 🎥 Chemical Influencers!

> Duration: 60 - 70 minutes

- Objective: Deepen knowledge about aldehydes creatively, developing communication and digital content production skills.

- Description: In this activity, students will become 'chemical influencers', creating educational content for social media about aldehydes. Each group must produce a short video (TikTok, Instagram Stories) explaining an important aspect of aldehydes, such as their chemical structure, differentiation from ketones, or their properties and applications.

- Instructions:

• Divide students into groups of up to 5 people.

• Each group should choose a topic related to aldehydes (chemical structure, differentiation from ketones, physical properties, etc.).

• Using cell phones, students should record short videos explaining the chosen topic in a creative and didactic manner.

• Students can use video editing software and social media apps to add effects and make the content more engaging.

• Each group should present the video to the class and, if possible, post it on the school's social media or a shared channel.

Feedback

Duration: 15 - 20 minutes

The purpose of this stage is to promote reflection and consolidation of the knowledge acquired through practical activities. Group discussion and 360° feedback encourage cooperation, communication, and self-assessment, providing an opportunity for students to synthesize their learning experiences and identify areas for improvement.

Group Discussion

To start the group discussion, suggest that each group share their findings and experiences. Begin by asking them to explain the aldehyde they chose or identified, detailing the properties and applications they found and discussing the difficulties or surprises that arose during the activities. Encourage students to ask each other questions and compare their approaches and results. Conclude the discussion by highlighting the main collective learnings and how the different activities contributed to a better understanding of aldehydes.

Reflections

1. What were the main challenges you faced while conducting the activities? How did you overcome them? 2. How do the properties of aldehydes influence their applications in industry and everyday life? 3. How do you think the use of digital tools helped deepen understanding of aldehydes?

360° Feedback

Instruct students to participate in a 360° feedback session, where each group member provides feedback to the others. Guide them to follow the 'feedback sandwich' approach, which consists of starting with a positive comment, followed by a suggestion for improvement and ending with another positive comment. Emphasize the importance of keeping feedback constructive and respectful, focusing on specific behaviors and contributions during activities.

Conclusion

Duration: 10 - 15 minutes

🧠 Purpose of the Conclusion 📚 The conclusion stage aims to synthesize the knowledge acquired during the lesson, reinforce connections with the real world and the practical applications of the studied theme. Additionally, it seeks to leave a lasting and positive impression, motivating students to continue exploring chemistry enthusiastically and applied. The conclusion is a moment of reflection and celebration of the knowledge built throughout the lesson. 🎉

Summary

🥳 Fun Summary! 🤩 To conclude successfully, let's summarize aldehydes in a light and fun way. Think of aldehydes as the stars of a chemical show: with the functional group -CHO as the protagonist, they differ from ketones that have the C=O group in the middle of the chain. Aldehydes are like versatile actors playing important roles, from delicious aromas to vital components in medicines. And bingo! We haven't forgotten the physical and chemical properties of aldehydes that make them shine in the industry. 🎬✨

World Connection

🌍 In Today's World 📱 The connection of aldehydes with the digital world is evident through their practical applications. Imagine fragrances that are trending on social media or innovative medicines promoted on digital platforms. Knowledge about aldehydes leads students to understand how chemistry is present in what they consume and share in their daily lives through social media and other modern tools. 💡

Practical Application

🏠 Applications in Daily Life 🔬 Understanding aldehydes is fundamental to perceiving how they impact various aspects of daily life. They are present in the fragrances we use, in preservatives that ensure the durability of our food, and even in medicines that treat diseases. This lesson demonstrated that the chemistry of aldehydes is not just theoretical but an active part of our daily lives.