Math-9-CO3pptxnmnnjjbbkkvbdkvdbdjjeh.ppt

Mathematics

1. R - espect P - articipation L - isten Classroom Rules

2. LEARNING OUTCOMES By the end of the lesson, you'll be able to learn how to: Illustrates Pythagorean Theorem Use the Pythagorean Theorem to find the unknown side of the given right triangle. Solves problems involving the right triangle.

3. Directions: Guess the word by identifying and combining the pictures that will be shown on the screen. TRY THIS! Activity 1: Identify Me with a twist!

4. TRY THIS! Activity 1: Identify Me! 1.

5. TRY THIS! Activity 1: Identify Me! 1. PYTHAGORAS

6. TRY THIS! Activity 1: Identify Me! 2.

7. TRY THIS! Activity 1: Identify Me! 2. HYPOTHENUSE

8. TRY THIS! Activity 1: Identify Me! 3.

9. TRY THIS! Activity 1: Identify Me! 3. RIGHT TRIANGLE

10. TRY THIS! Activity 1: Identify Me! 4. A Rhian Ramos

11. TRY THIS! Activity 1: Identify Me! 4. PYTHAGOREAN A Rhian Ramos

12. TRY THIS! Activity 1: Identify Me! 5. A

13. TRY THIS! Activity 1: Identify Me! 5. DIAGONAL A

14. Pythagorean Theorem Solving Problems Involving Pythagorean Theorem

15. Step 1 Let have Recall!   Identify its parts A B C    

16. Step 1 Let have Recall!   Identify its parts A B C    

17. Step 1 Let have Recall! What is missing here?   Identify its parts A B C    

18. Step 1 Let have Recall! What is missing here?     Identify its parts A B C    

19. “ .”   Pythagorean Theorem

20. Who amo ng you has a television at home? Do you know its size?

21. Who amo ng you has a television at home? Do you know its size? Did you know that television is measured through its diagonal.

22. ? ?

23. 37 inches 21 inches

24. 37 inches 21 inches

25. 37 inches 21 inches Step 1: Apply the Pythagorean Theorem  

26. 37 inches 21 inches Step 2: Substitute the given   Step 1: Apply the Pythagorean Theorem  

27. 37 inches 21 inches Step 2: Substitute the given   Step 1: Apply the Pythagorean Theorem   Step 3: Solve inches or 42.54 inches  

28. 37 inches 21 inches Step 2: Substitute the given   Step 1: Apply the Pythagorean Theorem   Step 3: Solve inches or 42.54 inches   Therefore, the size of the TV screen is  

29. What does a TV consume?

30. What does a TV consume? It consumes Electricity

31. What does a TV consume? It consumes Electricity Might cause Fire

32. What does a TV consume? It consumes Electricity Might cause Fire Call the Firefighters or BFP

33. Example 2: Firefighters have a 37-foot extension ladder in order to reach 35 feet up the building. How far away from the building should the foot of the ladder be placed? 37 ft 35 ft ?

34. Example 2: Firefighters have a 37-foot extension ladder in order to reach 35 feet up the building. How far away from the building should the foot of the ladder be placed? 37 ft 35 ft ?

35. Example 2: Firefighters have a 37-foot extension ladder in order to reach 35 feet up the building. How far away from the building should the foot of the ladder be placed? 37 ft 35 ft ? Step 1: Apply the Pythagorean Theorem  

36. Example 2: Firefighters have a 37-foot extension ladder in order to reach 35 feet up the building. How far away from the building should the foot of the ladder be placed? 37 ft 35 ft ? Step 1: Apply the Pythagorean Theorem   Step 2: Substitute the given  

37. Example 2: Firefighters have a 37-foot extension ladder in order to reach 35 feet up the building. How far away from the building should the foot of the ladder be placed? 37 ft 35 ft ? Step 1: Apply the Pythagorean Theorem   Step 2: Substitute the given   Step 3: Solve  

38. Example 2: Firefighters have a 37-foot extension ladder in order to reach 35 feet up the building. How far away from the building should the foot of the ladder be placed? 37 ft 35 ft ? Step 1: Apply the Pythagorean Theorem   Step 2: Substitute the given   Step 3: Solve   Therefore, the foot of the ladder is 12 feet away from the building.

39. Group Activity! Directions: Read and Analyze the Problem

40. Group Activity! Directions: Read and Analyze the Problem. Put your answer on a manila-paper provided. (For 5 minutes) Each group has a 2 minutes to present their answers.

41. Group Activity!

42. Do you have a ladder at home? Or have you tried using a ladder? How about a ramp? What is the importance of a ladder or a ramp in our daily living?

43. REVIEW How do we solve problems using the Pythagorean Theorem?

44. REVIEW How do we solve problems using the Pythagorean Theorem? Steps in solving problem using Pythagorean Theorem: Identify its missing part Apply appropriate formula Solve for the missing part Interpret your answer into word

45. Assessment Test You will be given a 5 minutes to answer your paper

46. B D B C A Answer Key!

47. ASSIGNMENT Roy and Abel started bicycling from the corner of Ayap Street and Miguel Street of Cabaruan, Maddela, Quirino. At a particular time, Roy had covered 10 meters, and Abel 24 meters. How far apart were they at the time? Roy Abel 10 meters 24 meters ?

48. 3 4 Step 1 Find 3 4 1 2 × MULTIPLYING FRACTIONS USING AREA MODELS Divide the rectangle by four, then shade 3/4.

49. 4 5 1 4 4 20 1 5 × = Find Jam has 4/5 kg of buckwheat flour, and needs 1/4 of it in a recipe. TRY THIS! How much does the recipe use? The recipe uses of the flour. 1 5 ANSWER KEY 1 4 4 5 4 20 1 5 =