COT-MATH-AREA-OF-A-RECTANGLE-4th-Copy.pptx

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1. CLASSROOM RULES CLASSROOM RULES S eat properly isten attentively ndulge yourself in group task/activity aintain and observe silence in doing a task njoy learning S M I L E ENGAGE

2. INSTRUCTIONS I will call four learners to stand up, where the first learner will identify and shout a certain number, the second learner will shout the multiplication operation like times and the third will shout another number and the fourth will shout the product. 5 times 4 Equals 20

3. Math 3

4. What can you say about the picture? Math 3

5. How do you describe the classroom? Math 3

6. Is the classroom clean and orderly arrange? Math 3

7. Did you clean your classroom? Math 3

8. Why do we need to clean our Classroom? Math 3

9. How do you manage cleaning your classroom? Math 3

10. Did you put the things in a proper place? Math 3

11. Math 3 CLASSROOM

12. Math 3 How the learners and teacher arrange the things found in their classroom?

13. Math 3 What are the things or furnitures found in the classroom?

14. Math 3 What is the measure of the chalkboard? Table, door, television?

15. Math 3 Do you know how to measure the dimensions of the things inside the classroom like Table, door, television and chalkboard?

16. Math 3 Do you know how to compute the total area of a certain object, like Table, door, television and chalkboard?

17. EXPLORE Math 3 OF A RECTANGLE

18. LEARNING OBJECTIVES Determine the length and the width of a rectangular object. At the end of the lesson, you will be able to: Appreciate the application of their learnings in solving the area of a rectangle. Solve the area of a Rectangle; and Measure the dimensions of a rectangular object.

19. Math 3 Observe attentively. I’m going to demonstrate explicitly how to find the area of this rectangular black board by counting the number of square units.

20. Math 3 Observe attentively. I’m going to demonstrate explicitly how to find the area of this rectangular black board by counting the number of square units.

21. Math 3 Let’s count the number of square units.

22. Math 3 How many total number of square units? What is now the area of a rectangular blackboard?

23. How do you define Area? Math 3

24. AREA is the exact measurement of a shape or an object. Math 3

25. The unit square has standard unit: sq. cm. sq. m. sq. in. sq. ft. Math 3

26. Collaborative Activity I have demonstrated already how to determine the area of a rectangle by counting. This time, you take turn and do the same.

27. Collaborative Activity 1. Group yourselves into 5 groups of six members. 2. I’m going to give you materials and perform the activity following the same process of what I have demonstrated a while ago. 3.You present their answer to the class.

28. Math 3

29. Math 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

30. Math 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 The door has a 70 sq. units

31. Explain 1. How did you arrive at the answer, 70 sq. units? Math 3

32. Explain 2. What does that 70 sq. units mean? Math 3

33. Explain 3. Can you think of another way in determining the total area of an object aside from counting?   Math 3

34. There is another way on how to get the area of a thing. This is by using a formula: Math 3 A = l X w wherein: A = area l = length w = width

35. Length (l) w idth (w) Area (A)

36. l = 12 sq . units w = 5 sq. units A = ? What is the length? What is the width? What is the Area?

37. l = 12 sq . units w = 5 sq. units A = ? Given: l = 12 sq. units w = 5 sq. units A = ? Solution: A = l x w A = 12 sq. units x 5 sq. units A = 60 sq. units How did you arrive at your answer?

38. Collaborative Activity 1. Group yourselves into 5 groups of six members. 2. I’m going to give you materials and perform the activity following the same process of what I have demonstrated a while ago. 3.You present their answer to the class.

39. Math 3 5 sq units 14 sq units

40. Math 3 5 sq units 14 sq units What is the length of the door? What is the width of the door? What is the Area of the Door?

41. Group Activity Elaborate

42. RUBRICS: CRITERIA 5 4 3 CORRECTNESS All answers are correct 1 wrong answer 2 wrong answer COOPERATION All members cooperate 1-2 members did not cooperate 3-5 members did not cooperate SPEED/TIME LIMIT 1 st group to finish 2nd group to finish 3rd group to finish

43. Collaborative Activity 1. Group yourselves into 5 groups of six members. 2. I’m going to give you materials and perform the activity by counting the number of square units to determine the Area of a Table. 3.You present their answer to the class.

44. Group 1

45. Group 2

46. Collaborative Activity 1. Group yourselves into 5 groups of six members. 2. I’m going to give you materials and perform the activity by using the formula in solving the Area of a Notebook. 3.You present their answer to the class.

47. Group 3

48. Group 4 l = 12 sq. units l = 4 sq. units

49. Collaborative Activity 1. Group yourselves into 5 groups of six members. 2. I’m going to give you materials and let them measure the length and the width of a certain object using ruler and 3.You present their answer to the class.

50. Group 5

51. Generalization

52. How do you define Area of a Rectangle? Math 3

53. What are the dimensions of a rectangular object? Math 3

54. How do you determine the total area of a rectangle? Math 3

55. What is the formula in finding the area of a rectangle? Math 3

56. Cite some situations at home showing the importance of your learning about Area of a rectangle. Math 3

57. Evaluation Encircle the letter of the correct answer.

58. 1. Length: 3 cm Width: 12 cm A. A= 36 sq.cm. B. A= 63 sq. m. C. A= 15 sq. cm.

59. 2. Length: 10 cm Width: 20 cm A. A= 200 sq.cm. B. A= 20 sq. m. C. A= 30 sq. cm.

60. 3. Length: 8 cm Width: 5 cm A. A=13 sq.cm B. A= 25sq. cm. C. A= 40 sq. m. 5.

61. 4. Length: 5 cm. Width: 6 cm. A. A=30 sq.cm. B. A= 11sq. cm. C. A= 35 sq. cm.

62. Length: 100 cm. Width: 30 cm. A. A=30 sq.cm. B. A= 300sq. cm. C. A= 3000 sq. cm.

63. Assignment: JOURNALING: Reflect on what they learned about Area of Rectangle and how literacy skills helped them understand the concept better.

64. Assignment: Choose three things on your house measure it and get the area.