Lesson Plan | Teachy Methodology | Numerical Expressions

Objectives

Duration: 10 - 15 minutes

The purpose of this stage is to ensure that students clearly understand the main and secondary objectives of the lesson, providing a solid foundation for subsequent practical activities. This stage aims to align expectations and prepare students for the tasks they will undertake, keeping a clear focus on the knowledge and skills that should be acquired.

Main Objectives

1. Understand the structure of numerical expressions that contain the four basic operations: addition, subtraction, multiplication, and division.

2. Correctly apply the order of operations (parentheses, exponents, multiplication and division, addition and subtraction - PEMDAS) to solve mathematical expressions.

3. Develop the ability to identify and correct common errors when solving numerical expressions.

Side Objectives

1. Relate the resolution of numerical expressions to everyday situations, especially in digital contexts such as games and social networks.
2. Use digital tools to validate and test the resolution of numerical expressions.

Introduction

Duration: 10 - 15 minutes

The purpose of this stage is to ensure that students clearly understand the main and secondary objectives of the lesson, providing a solid foundation for subsequent practical activities. This stage aims to align expectations and prepare students for the tasks they will undertake, keeping a clear focus on the knowledge and skills that should be acquired.

Warming Up

To start the class, briefly explain what numerical expressions are and emphasize the importance of solving these expressions correctly, particularly how they are used in various everyday situations and in technology, such as in social media algorithms and digital games. Then, ask the students to use their phones to find an interesting fact or practical application about numerical expressions. Encourage them to share what they found with the class, fostering a collaborative and knowledge-sharing environment.

Initial Reflections

1. What is the correct order of operations when solving a numerical expression?

2. How do you use the resolution of numerical expressions in your daily life?

3. Can you give examples of how these operations are used in technologies you frequently use, such as apps or games?

4. Why is it important to follow the order of operations when solving a numerical expression?

5. What difficulties did you encounter when studying numerical expressions at home?

Development

Duration: 70 - 80 minutes

The purpose of this stage of the lesson plan is to provide students with a practical and interactive experience where they can apply their skills in solving numerical expressions in contexts that are relevant and engaging. By using modern technologies, students are encouraged to explore mathematics in new and creative ways, reinforcing their learning and promoting collaboration.

Activity Suggestions

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

Activity 1 - Digital Influencers and Numerical Expressions

> Duration: 60 - 70 minutes

- Objective: Develop communication and creativity skills while reinforcing the understanding of numerical expressions and their resolution.

- Description: Students will act as digital influencers and create content explaining how to solve numerical expressions. They will use tools like TikTok or Instagram to produce short and creative videos demonstrating the resolution of expressions, incorporating elements of storytelling.

- Instructions:

• Divide students into groups of up to 5 people.

• Ask students to create a fictional digital influencer profile focused on teaching mathematics.

• Students must choose a complex numerical expression that involves the four basic operations.

• Each group will create a script for a short video (1 to 2 minutes) explaining step by step how to solve the expression.

• Encourage them to use colloquial language and visual elements like drawings or animations to make the video more appealing.

• Use apps like TikTok or Instagram to record and edit the videos.

• At the end, each group will present their video to the class, which will provide feedback and discuss the approaches used.

Activity 2 - ExpressoMath: The Game of Numerical Expressions

> Duration: 60 - 70 minutes

- Objective: Promote healthy competition and playful learning while students reinforce their skills in solving numerical expressions in an interactive digital environment.

- Description: Students will be divided into groups and participate in a digital game created on Kahoot! where they will solve numerical expressions to earn points. The game will be competitive and each question will have a limited time to be answered.

- Instructions:

• Divide students into groups of up to 5 people.

• Explain the game rules and how to use the Kahoot! platform to answer the questions.

• Each group should choose a name and create a strategy to solve the expressions as quickly as possible.

• Start the game on Kahoot! with a series of progressively more difficult numerical expression questions.

• Groups will have a limited time to solve each expression and enter the answer on Kahoot!.

• At the end, reveal the results and discuss with the class the strategies that worked best and the common mistakes.

• Offer a small prize or recognition for the winning group.

Activity 3 - Mathematical Influencer Challenge with Augmented Reality (AR)

> Duration: 60 - 70 minutes

- Objective: Incorporate augmented reality technologies into math teaching to make learning more interactive and visual, while also developing the ability to work in groups and solve complex problems.

- Description: Students will be challenged to create interactive content using augmented reality apps (such as HP Reveal) to explain complex numerical expressions. They will use visual elements and 3D animations to make the explanation engaging and easy to understand.

- Instructions:

• Divide students into groups of up to 5 people.

• Ask students to choose a challenging numerical expression and plan how to explain it using AR.

• Explain how to use an AR app like HP Reveal to create interactive content.

• Students must create a script and gather visual resources that will be used in the explanation.

• Using HP Reveal or another AR app, groups will create an interactive experience where the components of the expression appear as 3D objects and are manipulated on the screen to show the solution step by step.

• After creating the experience, each group will present their work to the class, showing how AR was used to explain the expression.

• Promote a discussion about the advantages and challenges of using AR in math learning.

Feedback

Duration: 20 - 25 minutes

📋 Purpose: The aim of this stage is to provide a space for reflection and experience sharing, where students can consolidate what they have learned, identify strengths and areas for improvement in their study and collaboration practices. This discussion concludes the lesson, encouraging critical thinking about the learning process and the use of digital technologies in the educational context.

Group Discussion

📢 Group Discussion: Promote a group discussion where students share what they have learned and their conclusions about the activities conducted. Use the following script to introduce the discussion:

"Now that everyone has had the opportunity to create digital and interactive content about numerical expressions, let's share our experiences. I would like each group to briefly present what they learned from the activity, the challenges they faced, and how they overcame those challenges. Let's reflect together on the impact of these technologies on our learning."

Reflections

1. 🤔 What were the biggest challenges you encountered when creating digital content? How did you overcome them? 2. 📱 How did the use of digital technologies, such as social networks and augmented reality, help or hinder the understanding of numerical expressions? 3. 💡 What new skills do you think you developed during the activities?

360° Feedback

🔄 360° Feedback: Instruct students to regroup and conduct a 360° feedback session. Each member should share constructive and respectful feedback about their peers' participation in the activity. Guide the class to consider the following aspects:

Contribution to the Task: How did each peer contribute to the activity's development? Communication: Was communication within the group effective? How could it be improved? Cooperation: Was there collaboration and mutual support in the group?

Encourage students to use phrases like "I liked that...", "I thought you did well..." and "A suggestion for improvement would be...".

Conclusion

Duration: 10 - 15 minutes

🔎 Purpose: This final stage concludes the lesson by summarizing the main content and reflecting on its connection to today's world. The goal is to consolidate learning, highlighting its practical importance, and encouraging students to apply this knowledge creatively and relevantly in their daily lives. 🎯

Summary

📚 Fun Summary! Imagine that solving numerical expressions is like being a digital detective 🕵️‍♂️🕵️‍♀️. We learned to follow clues (order of operations) to solve mathematical mysteries, unraveling step by step the puzzles of addition, subtraction, multiplication, and division! 🔍✨

World Connection

🌍 In Today's World: In a world where technology is everywhere, from social media algorithms to online game mechanics, understanding numerical expressions helps us decipher how these tools work. This makes us not only users but also creators and innovators capable of understanding and manipulating the digital realm! 📱💻

Practical Application

📈 Everyday Applications: Knowing how to solve numerical expressions is essential for various everyday situations, such as calculating discounts on online purchases 🛒, splitting bills at dinner with friends 🍲, or even understanding the logic behind your favorite games 🎮. It’s a practical and essential skill for modern life.