Reflection Investigation Lesson Presentation in Colourful Illustrative Style.pptx

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1. Lesson context Key concepts Activity Investigation REFLECTION OF LIGHT Prepared by: RENLIE JANE P. PEDRONAN Subject Teacher

2. Key concepts Activity Investigation How are you?

3. Lesson context Key concepts Activity Investigation

4. Key concepts Activity Investigation AMBULANCE

5. Key concepts Activity Investigation

6. Lesson context Key concepts Activity Investigation REFLECTION OF LIGHT

7. Lesson context Key concepts Activity Investigation Content Standard The learner demonstrates an understanding of light as a wave and a particle.

8. Lesson context Key concepts Activity Investigation Performance Standard The learner should be able to design and create a useful product for practical purposes that uses mirrors and lenses.

9. Lesson context Key concepts Activity Investigation Learning Competency The learners describe how the propagation of light, reflection, and refraction are explained by the wave model and the particle model of light.

10. Lesson context Key concepts Activity Investigation Learning Objectives At the end of the lesson, the students should be able to: explain reflection of light; measure and compare the angle of incidence and angle of reflection; state the law of reflection; and apply knowledge of reflection of light in real-life scenarios.

11. Lesson context Key concepts Activity Investigation YOU’VE GOT A MESSAGE IN A MIRROR! Instruction: Each partner pick a short secret message from the bowl. Your partner holds it up to a mirror and tries to read it. Write your answer on the answer sheet provided.

12. Lesson context Key concepts Activity Investigation YOU’VE GOT A MESSAGE IN A MIRROR!

13. Lesson context Key concepts Activity Investigation YOU’VE GOT A MESSAGE IN A MIRROR! 2. Why does the mirror make it readable? 1. What is the secret message?

14. Lesson context Key concepts Activity Investigation

15. Lesson context Key concepts Activity Investigation Each group should assign the leader, secretary, material keeper, observers, housekeeper, and presenter. After accomplishing the tasks, each group will present their outputs. Each group will be given 2-3 minutes to present their outputs. Observe safety precautions while doing the activities. Do not play the LASER pointer. Be careful in handling the mirror. Reminders

16. Lesson context Key concepts Activity Investigation PRedict , Observe, and EXplain (PROBEX) Reminders

17. Lesson context Key concepts Activity Investigation GROUPINGS

18. Lesson context Key concepts Activity Investigation Activity 1: Mirror, mirror, on the wall… Activity 2: Angle of Incidence vs. Angle of Reflection Activity 3: Mirror Left-Right Reversal Activity 4: Who Wants to be a Millionaire?

19. Activity Investigation

20. Activity 1: Mirror, mirror, on the wall…

21. Guide Questions: Compare the distance (number of parallel lines) from the mirror of the object with that of the image. How do the height and width of the object compare with the height and width of the image? Why is the size and distance of the object the same with the size and distance of the image?

22. Activity 2: Angle of Incidence vs. Angle of Reflection

23. Guide Question: How does the angle of incidence compare with the angle of reflection?

24. Law of Reflection θ i  =  θ r The normal line, incident ray, and the reflected ray lie on the SAME plane.

25. Periscope an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer’s current position

26. Periscope

27. Activity 3: Mirror Left-Right Reversal

28. Guide Question: What are the letters of the alphabet that can be read correctly in front of the mirror?

29. Activity 4: Who Wants to be a Millionaire?

30. What relationship exists between the number of images formed and the angle between two mirrors?

31. At what angle can we make 20 images? 15 images?

32. 20 images – 17.15 degrees 15 images – 22.5 degrees

33. How should the mirrors be arranged such that an infinite number of images will be formed or seen?

34. Practical Applications

35. Generalization

36. COMPLETE THE PARAGRAPH Reflection is the bouncing off of light rays when it hits a surface like a _______. The image appears as if it is _______ the mirror but actually not. The height, width, and distance of the object in front of the mirror is _______ to the height, width, and distance of its image.

37. COMPLETE THE PARAGRAPH The law of reflection states that the angle of _______ is equal to the angle of reflection. It also follows the mirror left-right reversal. This means that the left side of the object appears as the ______ side of the image and the ______ appears as the left side.

38. COMPLETE THE PARAGRAPH To produce multiple images, at least ______ mirrors will be used. The greater the angle between the mirrors, the _____ the number of images will be formed. ________ mirrors, on the other, produce infinite number of images.

39. Evaluation

40. JINGLE – Make a jingle stating the concepts learned about reflection of light in plane mirrors VLOG - Make a short clip showing multiple images ESSAY – Make an essay describing how a mirror reflects your image and compare it to how challenges in life reflect your strengths and resilience. Create a simple PERISCOPE PERFROMANCE TASK

41. THANK YOU!