Detailed Lesson Plan School Donsol Community College Teacher Jeffrey L. Bayomo Teaching Dates & Time I. OBJECTIVES A. Content Standards B. Performance Standards C. Learning Competencies/outcomes March 14, 2022 Grade & Section Learning Area 7 Mathematics Quarter 3 The learners demonstrate understanding of the key concept of sets and the real number system. The learners are able to formulate challenging situations involving set and real numbers and solve these in a variety strategy. At the end of the 60 minute the students should be able to: 1. To perform addition on integers 2. Memorize the rules in addition of integers 3. Solve problems involving integers II. III. CONTENT LEARNING RESOURCES Adding Integers A. References a. Teacher’s guide pages Curriculum aligned seamless k-12. Oronce. Mendoza b. Learner’s materials pages c. Textbook pages d. Additional materials from learning resources B. Other learning resources IV. Manila paper, colored paper PowerPoint Presentation, MS Word PROCEDURE A. Review previous lesson Teacher’s Activity Good morning Class! 17 Student’s Activities Let us all stand up and feel the presence of the Lord. Ms. Arias please lead the prayer. Amen! Before seating down please arrange your chairs quietly and pick up the papers and candy wrappers under your chairs. let’s have first a math trick. Do you want a math trick?? Are you ready? So get any piece of paper and ball pen. Yes, sir! Write your month number from your birthday. For example, if your birthday is June then your month number is 6. Then, multiply by 5. Next, add 6. Multiply the total by 4. Add 9. Multiply by 5 once again. Then, add your birth date. If you were born on the 14th, then add 14. And last, subtract 165. You will surprise because you will have the month and day you were born. Done sir! Are you done on computing? What have you notice in the trick? Exactly. In order to get the right answer, you need to follow the rules and instructions! I hope it energized you all. B. Establishing purpose for the lesson Last meeting, we have discussed about integers. Integers are a set of positive and negative number. So what do you mean by integer? Yes Ms. ___________ Very good. 18 How will you define the absolute value of a number? The absolute value of a number is its distance from zero to the number line. Excellent! Now let us study the image below. It is a line graph Sir! What can you say about it? Very good! And it also contains what? Yes, that’s right! It contains numbers with negative and positive signs! At the center! Where is the location of the zero number? How about the positive numbers? At the right side of Zero! At the left side of zero! What about the negative numbers? Today we are going to use this number line to show the addition of two integers starts with 0. Move to the right to add positive integers and move to the left to add negative integers! At the end of the 60 minute you should be able to: 1. To perform addition on integers 2. Memorize the rules in addition of integers 3. Solve problems involving integers Are you ready class? 19 Yes, Sir! C. Presenting examples/instances of the new lessons Using the line graph that shows the addition of two integers let us analyze these following questions. 1. From 0, take 4 units to the right and another 3 units to the right what was the resulting number? How far is it from the zero? 2. From 0, take 6 units to the left and another 4 units to the left what was the resulting number? How far is it from the zero? 1. The resulting number is 7. It is 7 units away from the zero! 2. The resulting number is negative 10. It is 10 units away from zero. Yes, very good! D. Discussing new concept and practicing new skills #1 Let me divide you into 3 groups. Row 1 will be group 1. Row 2 will be group 2 and row 3 will be group 3. Each group will be given 5 minutes and another 2 minutes for presentation of your activity. Activity 1: Hop on me! Using the line graph illustrated a while ago, give the resulting numbers if we takea. b. c. d. e. f. 5 units to the right of 3? 4 units to the right of 8 2 units to the eft of -5? 3 units to the left of -6? 5 units to the left of 2? 5 units to the right of -3? a. b. c. d. e. Remember that we have house rules to follow: Be respectful Be participative Be collaborative Are there any questions? If none your five minutes starts now! Let us give a round of applause to each and every one of you! E. Discussing the new concept and Let us more explore on how to add integers! 20 8 units 12 units -7 units -9 units 3 units practicing new skills #2 Again let us use the number line to add the following integers. a. b. c. d. 4+3 7 + (-6) -4 + (-4) -8 + 6 Let us now analyze the rules in adding integers. What can you observe when you are adding like signs? When adding common signs, you need to copy the sign. Excellent! LIKE SIGN: (+) + (+) or (-) + (-) Find the sum of their absolute values and use the sign common to both integers Example: 8+8= 16 while (-8) + (-8) = -16 How about adding an unlike sign? Very good! UNLIKE SIGN: (+) + (-) or (-) + (+) Find the difference of their absolute values and use the sign of the integer with the greater or larger absolute value. 21 When adding unlike signs you need to subtract and copy the sign of the larger number. F. Leads to formative assessment Example (-3) + 8 = 5 while 13 + (-5) = 8 let us have a board game! Please remain in your group and follow my instruction: 1. Each group must contain 10 members 2. The group member will go to the board one by one and pick 1 question to answer. 3. The first group who got the highest score will be the winner and get their reward. 4. You only have 15 minutes to answer in the board! Is there any question? If none let’s get ready! G. Finding practical applications and concepts and skills in daily living None sir! I will show you a video clip entitled Application of Integers in Real Life. While watching the video, you’re going to take note of what you have noticed in the video. Is that clear? If that so, here is the video. (The teacher will play the video) (after the video presentation) What can you say about the video the video? Yes Ms._______________ Thank you. Another? The video shows us how integers are being used in this world. The video tells us that we don’t have to hate mathematics because it is already part of us, whether we like it or not, math is around us. We can’t deny the fact that almost all of the students nowadays hate mathematics a lot. But why? Though mathematics is really part of our life. Everything we do is part of math. When we are eating, taking a bath or even when we travel. There is always an integration of mathematics. H. Making generalizations and What did you learn from our lesson? 22 Sir! I learned how to use number line in adding integers both positive and negative. abstractions about the lesson Sir I memorized the rules in adding integers. Sir I learned that negative numbers are also important in our lives! I. Evaluating learning DIRECTION: Get ½ sheet of paper. Read each question carefully. Choose the letter of the correct answer and write it on the space provided before each number. 1. If we are going to add -67 to 69, what will be the answer? a. 138 b. -2 c. 2 d. -138 2. Which equation is true? a. 6+7 = -13 b. (-15) + 6= -9 c. -6 + (15) = -9 d. None of the above 3. If we are going to add 52 to -7 what will be the answer? a. 45 b. -45 c. 59 d. -59 Illustrate using the number line 4. Illustrate 5 units to the right of 3. 5. Illustrate 7 units to the left of 4. Are done? please pass your papers in the person in front of you. 23 The students will pass their papers. J. Additional activities for application and remediation Advance read about subtracting integers. Goodbye class! See you tomorrow! V. REMARKS VI. Reflections A. No. of learners who earned 80% in evaluation B. NO. of learners who requires additional activities for remediation who scored below 75% C. No. of learners who caught up with the lesson D. No. of students who continue to require remediation E. Which of my teaching strategies worked well? Why did this work? F. What difficulties did I encounter which my principal/supervisor can help me solved? G. What innovations or localized materials did I used/discover which to share with other teacher? 24