Lesson Plan | Teachy Methodology | Opposite Numbers

Objectives

Duration: 10 to 15 minutes

The purpose of this lesson plan stage is to ensure that students clearly understand the lesson objectives, providing a solid foundation for practical exploration of the concept of opposite numbers. This includes the ability to identify and utilize opposite numbers in mathematical equations and other practical situations, preparing students for the dynamic and interactive activities that will follow.

Main Objectives

1. Understand the concept of opposite numbers, such as -4 being the opposite of 4, and that the sum of a number and its opposite is zero.

2. Solve practical problems involving opposite numbers, such as determining the value of x in equations like 3x = 9 or identifying the opposite of a given number.

Side Objectives

1. Apply the concept of opposite numbers in everyday contexts, such as social media and other digital interactions.
2. Develop critical thinking and mathematical problem-solving skills in modern and relevant contexts.

Introduction

Duration: 15 to 20 minutes

The purpose of this lesson plan stage is to ensure that students clearly understand the lesson objectives, providing a solid foundation for practical exploration of the concept of opposite numbers. This includes the ability to identify and utilize opposite numbers in mathematical equations and other practical situations, preparing students for the dynamic and interactive activities that will follow.

Warming Up

To introduce the concept of opposite numbers, explain that they are numbers with the same magnitude but opposite signs, and that the sum of a number and its opposite always results in zero. Then, ask students to use their phones to find an interesting fact or curiosity about opposite numbers. This can include examples of their application in various fields such as economics, physics, or even in daily life. Encourage students to share what they found with the class.

Initial Reflections

1. What are opposite numbers?

2. Why is the sum of a number and its opposite always zero?

3. What are some examples of opposite numbers that we encounter in our daily lives?

4. How can we use the concept of opposite numbers to solve mathematical problems?

5. Did anyone find any interesting fact about opposite numbers in the phone research? Could you share it with the class?

Development

Duration: 75 to 85 minutes

The purpose of this lesson plan stage is to encourage the practical and contextualized application of the concept of opposite numbers through dynamic and collaborative activities that utilize modern technologies. This aims to make learning more engaging and relevant to students, developing skills beyond mathematical content, such as communication, creativity, and teamwork.

Activity Suggestions

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

Activity 1 - Mathematical Influencers 

> Duration: 60 to 70 minutes

- Objective: Apply the concept of opposite numbers in a modern and engaging form of communication, developing presentation skills and clarity of explanation.

- Description: The students will become digital math influencers for a day! Each group will create a series of stories or a small explanatory video about opposite numbers, using social media or video editing apps. They should relate the concept to everyday situations and practical examples, helping to make the content accessible and engaging for their fictitious followers.

- Instructions:

• Divide the students into groups of no more than 5 people.

• Each group should choose a social media platform (Instagram, TikTok, YouTube) or a video editing app (InShot, iMovie).

• Explain to the students that their task is to create a series of stories or a video of up to 3 minutes that explains the concept of opposite numbers clearly and interestingly.

• Students should include everyday examples and solve at least one problem involving opposite numbers during the explanation.

• Encourage students to be creative and use visual resources such as emojis, graphics, animations, and background music.

• At the end, each group will present their stories or video to the class.

• The videos can be posted on an internal educational platform of the school or shared only in class.

Activity 2 - Virtual Treasure Hunt 

> Duration: 60 to 70 minutes

- Objective: Develop mathematical problem-solving skills playfully and collaboratively, promoting understanding and practice of opposite numbers.

- Description: Students will participate in a virtual treasure hunt, where each clue is a problem or challenge involving opposite numbers. Using a quiz and challenge app like Kahoot! or Quizizz, students will solve problems to unlock the next clue, competing to see who can reach the end the fastest.

- Instructions:

• Divide the students into groups of no more than 5 people.

• Each group should have access to an electronic device (cell phone or computer) with internet access.

• Set up a quiz or treasure hunt game on Kahoot! or Quizizz, including problems and challenges about opposite numbers.

• Explain to the students that they need to solve each problem correctly to advance to the next clue.

• Students should work as a team to solve each challenge, using prior study materials and group discussions.

• The team that completes the treasure hunt first will be the winner.

• After the activity, discuss the solutions to the problems with the students to ensure everyone understood the concepts addressed.

Activity 3 - Digital Comic Strips 

> Duration: 60 to 70 minutes

- Objective: Use a creative and visual approach to explain mathematical concepts, developing narrative, design, and collaboration skills.

- Description: Students will create a digital comic strip that explains the concept of opposite numbers and how they are used in different contexts. Using comic creation apps like Pixton or MakeBeliefsComix, students will draw and narrate a story that makes the concept clear and interesting.

- Instructions:

• Divide the students into groups of no more than 5 people.

• Each group should choose a comic creation app (Pixton, MakeBeliefsComix).

• Explain to the students that their task is to create a comic strip that explains the concept of opposite numbers, including examples and practical situations.

• Students should work together to write the script, draw characters, and assemble the comic strips.

• Encourage creativity by suggesting that students create characters that personify the opposite numbers, like heroes and villains.

• At the end, each group will present their comic strip to the class.

• The stories can be printed and displayed in the classroom or shared digitally.

Feedback

Group Discussion

Promote a group discussion with all students, where each group shares what they learned while performing the proposed activities. Use the following script to guide the discussion:

1. Introduction: Invite each group to briefly present their activities and what they discovered about opposite numbers.
2. Sharing Experiences: Ask students what the biggest challenges they encountered during the activities were and how they overcame them.
3. Practical Application: Encourage students to think and share how they can apply the concept of opposite numbers in other areas of their daily lives or in other school subjects.

Reflections

1. What were the main discoveries you made about opposite numbers during the activities? 2. What was the most challenging part of the activities and how did you and your group resolve it? 3. How can you apply the concept of opposite numbers in other subjects or in daily life situations?

360° Feedback

Conduct a 360° feedback session, where each student should receive feedback from the other students in the group they worked with on the activity. Explain to students that feedback should be constructive and respectful. Use the following script to guide the class:

1. Constructive Feedback: Each student should mention something positive about a colleague's contribution and a suggestion for improvement. For example, 'I liked how you explained the concept in the video, maybe next time we could add more graphics to make it even clearer.'
2. Respect and Empathy: Reinforce the importance of being respectful and empathetic when giving and receiving feedback, creating a safe environment for everyone.

Conclusion

Duration: 10 to 15 minutes

The purpose of this lesson plan stage is to consolidate and reinforce the concepts explored during the lesson, connecting learning to students' realities in an engaging and meaningful way. Additionally, this stage aims to demonstrate the relevance and practical applicability of opposite numbers in everyday life, allowing students to recognize the importance of the theme beyond the school environment.

Summary

✨ Enchanting Summary: The Heroic Opposite Numbers ✨

Today, we embarked on the fantastimatic adventure of opposite numbers! ✨ We discovered that these numbers, like -4 and 4, are heroes with opposite signs that, when combined, sum zero – the perfect balance! 隸‍♂️惡‍♀️ We learned to identify and solve mathematical problems with them, turning equations into pure magic. 

World Connection

 Connection to the Current World 

Just like in our social media, where we seek balance and harmony in interactions, opposite numbers show us the beauty of mathematical balance. They are present in financial transactions, temperatures, and even modern physics, always reminding us of the importance of finding balance in everything we do.

Practical Application

 Applications in Daily Life 

Understanding opposite numbers is essential not only for solving mathematical problems but also for understanding everyday situations such as managing finances (credits and debits) and interpreting temperature variations. This concept is a powerful tool for critical thinking and problem-solving in various areas of life.