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Lesson plan of Bisector and Perpendicular Bisector

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Lara from Teachy


Mathematics

Original Teachy

Bisector and Perpendicular Bisector

Lesson Plan | Lesson Plan Iteratif Teachy | Bisector and Perpendicular Bisector

KeywordsAngle Bisector, Perpendicular Bisector, Geometric Loci, Social Media, Instagram, TikTok, YouTube, Augmented Reality, Geometry, Digital Activities, Digital Tools, Engagement, Mathematics, Interactive Education, 360° Feedback
ResourcesMobile phones or tablets with internet access, Instagram app, Video editing app (like KineMaster, iMovie, etc.), Augmented reality app (like ARuler or AR Measurement), Computers equipped with presentation software (Google Slides, PowerPoint, etc.), Projector or TV for video display, Digital whiteboard or chalkboard, Access to a closed social media group for sharing stories
Codes-
Grade8th grade
DisciplineMathematics

Goal

Duration: 10 - 15 minutes

The purpose of this stage is to clearly outline the primary and secondary learning goals for the students, helping them understand expectations and how this knowledge will be useful. This focus enhances engagement and motivation regarding the lesson's relevance.

Goal Utama:

1. Understand what angle bisectors and perpendicular bisectors are, recognizing them as geometric loci.

2. Identify the perpendicular bisector and angle bisector in diagrams.

Goal Sekunder:

  1. Apply angle bisectors and perpendicular bisectors to real-life scenarios.
  2. Utilize digital tools to explore and visualize angle bisectors and perpendicular bisectors.

Introduction

Duration: 15 - 20 minutes

This stage aims to activate students' prior knowledge and connect home study content to in-class practice. By starting with an introduction and key questions, it encourages curiosity and engagement, setting the stage for deeper, interactive activities.

Warming Up

Introduction to the Topic: To kick off the class, explain that an angle bisector divides an angle into two equal sections, while a perpendicular bisector splits a line segment into two equal parts at a right angle. These concepts are foundational in geometry with applications ranging from architecture to digital animations. 🚀 Engage Students: Encourage students to pull out their phones to find an interesting fact about angle bisectors or perpendicular bisectors and share it with the class. This could involve practical examples, real-world applications, or fascinating tidbits about how these lines are used across various fields.

Initial Thoughts

1. What is an angle bisector and what role does it play in a triangle?

2. How can a perpendicular bisector be used to find the midpoint of a segment?

3. What are some practical uses of angle bisectors and perpendicular bisectors in everyday life?

4. How do you think technology can help us enhance our understanding of these geometric concepts?

5. Did anyone come across an interesting fact about angle bisectors or perpendicular bisectors they'd like to share?

Development

Duration: 70 - 80 minutes

This stage focuses on active and contextualized learning. Students will apply the concepts of angle bisectors and perpendicular bisectors through interactive and practical activities with digital technologies, increasing engagement and comprehension while fostering teamwork and responsible technology use.

Activity Suggestions

Activity Recommendations

Activity 1 - Geometric Adventure on Instagram

> Duration: 60 - 70 minutes

- Goal: Leverage a popular social media platform to engage students in identifying and defining angle bisectors and perpendicular bisectors, promoting practical application of geometric principles.

- Deskripsi Activity: Students will create an 'Instagram Story' featuring a series of images and explanations about angle bisectors and perpendicular bisectors. They will employ Instagram Stories' drawing and text features to illustrate the concepts and seek examples in their school or home.

- Instructions:

  • Divide the class into groups of up to 5 students.

  • Instruct each group to use Instagram to create a series of stories explaining angle bisectors and perpendicular bisectors.

  • Students should look for examples of these concepts in their school or home, take photos, and illustrate the lines over the images using Instagram Stories' tools.

  • Each group must include short text explanations in their stories clarifying the angle bisector or perpendicular bisector in the image.

  • Guide students to share their stories in a closed group on the social platform so that everyone can view and comment.

  • Wrap up with each group's presentation of their stories, followed by discussions on the concepts learned and challenges faced.

Activity 2 - Digital Influencer Challenge

> Duration: 60 - 70 minutes

- Goal: Enhance digital communication skills while reinforcing geometric concepts through video creation.

- Deskripsi Activity: Students will take on the role of digital influencers, creating a short video for YouTube or TikTok that explains angle bisectors and perpendicular bisectors. Each group will plan, record, and edit their video, using practical examples and animations where feasible.

- Instructions:

  • Group students into teams of up to 5.

  • Each group must organize themselves to produce a video lasting 1 to 2 minutes on angle bisectors and perpendicular bisectors.

  • Encourage teams to draft a script that incorporates practical examples and illustrations of the concepts.

  • Assist students in employing video editing apps to add animations and graphics that clarify definitions and applications.

  • Instruct each group to upload their video to a private channel or platform for viewing by peers.

  • Finish with a screening of the videos in class, followed by a discussion on the methods used in explanations and challenges faced.

Activity 3 - Augmented Reality Game: Angle Bisector and Perpendicular Bisector Hunt

> Duration: 60 - 70 minutes

- Goal: Involve students in identifying angle bisectors and perpendicular bisectors through augmented reality, encouraging a practical and visual learning experience.

- Deskripsi Activity: Utilizing augmented reality (AR) apps, students will search for angle bisectors and perpendicular bisectors in their school environment. The app will facilitate real-time drawing of lines over video footage, allowing students to visualize and manipulate these geometric lines.

- Instructions:

  • Divide the class into groups of up to 5 students.

  • Introduce an augmented reality app that lets students draw lines and geometric shapes live on their phone screens.

  • Students will use the app to identify and mark angle bisectors and perpendicular bisectors on objects around the school.

  • Instruct students to draw these lines directly on the camera image, saving the best representations as screenshots.

  • Require each group to create a digital presentation (using Google Slides or various software) featuring their screenshots and explanations of their findings.

  • Conclude with presentations from each group, showcasing discovered examples and discussing the concepts' accuracy and applications.

Feedback

Duration: 30 - 35 minutes

🎯 [Purpose] This stage aims to reinforce students' learning through reflection and shared experiences, fostering social and communication skills via peer feedback. It serves as a moment for students to assess their progress, identify improvement areas, and learn from their classmates, strengthening their grasp of the geometric concepts discussed.

Group Discussion

💬 [Group Discussion] Facilitate a group discussion with all students, allowing groups to share their insights and conclusions. Suggested introductory script:

  1. Discussion Introduction: Start by prompting each group to discuss their findings and how they applied angle bisectors and perpendicular bisectors.
  2. Challenges and Solutions: Encourage students to talk about any difficulties they encountered during the digital tasks and their solutions.
  3. Practical Application: Prompt groups to reflect on how technology aided their understanding and how they might use this knowledge in different subjects or situations.

Reflections

1. 🧐 What were the main challenges in using digital tools to identify and draw the angle bisector and perpendicular bisector? 2. 📱 How did social media and digital applications shape your grasp of geometric concepts? 3. 🔄 How could you implement angle bisectors and perpendicular bisectors in everyday contexts or across other subjects?

Feedback 360º

🔄 [360° Feedback] Guide the teacher to implement a 360° feedback session where each student receives input from their peers during activities. Provide guidelines for constructive and respectful feedback:

  1. Respect and Constructiveness: Remind students to offer feedback kindly, focusing on positive aspects and areas for enhancement.
  2. Structured Feedback: Encourage students to adopt a structured format for feedback, such as 'What went well', 'What could improve', and 'Suggestions for future activities'.
  3. Mutual Feedback: Ensure every student has the chance to give and receive constructive feedback within a supportive environment.

Conclusion

Duration: 5 - 10 minutes

🎯 Purpose of the Conclusion: The goal of this concluding segment is to consolidate learning by connecting geometry with real-world and digital contexts, emphasizing their practical applications. By summarizing what has been learned in an engaging manner and relating it to contemporary trends, we reinforce the relevance of these concepts in students’ lives, inspiring them to continue their exploration of mathematics.

Summary

🎉 Conclusion of the Geometry Journey! 🎉

Congratulations, Geometry Enthusiasts! You have become adept at identifying the angle bisector 🌟, which divides an angle into two equal parts, and the perpendicular bisector 🛤️, which cuts a line segment at a right angle. Not only have you learned these concepts, but you've also explored them in various locations and through digital platforms, illustrating that mathematics is continually present – even in social media and augmented reality!

World

🌍 In Today's Digital Age: Throughout this lesson, you have observed how essential mathematical principles like angle bisectors and perpendicular bisectors relate to modern technology and our digital lifestyles. By utilizing platforms like Instagram 📸 and innovative tools like augmented reality 🌐, you have integrated mathematics into a familiar digital context, showcasing the practical significance of this knowledge across fields like engineering and graphic design.

Applications

📌 Practical Applications: Angle bisectors and perpendicular bisectors are not just abstract notions; they are crucial in our everyday lives! From creating architectural designs to visual effects in films 🎬 and animations, these concepts contribute to shaping our environment. Learning to identify and apply these geometric elements can significantly boost your problem-solving and creativity skills, which are vital in an increasingly tech-centric world.


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