Department of Education Region VII, Central Visayas DIVISION OF CEBU IPHO Building, Sudlon, Lahug, Cebu City CARMEN DISTRICT Siotes Elementary School DETAILED LESSON PLAN IN MATH 5 School: SIOTES ELEMENTARY SCHOOL Teacher: SHERYL F. ARESCO I. OBJECTIVES A. Content Standards B. Performance Standards C. Most Essential Learning Competency Quarter: I Date & Time: 12/05/2022 @1:00-1:50 P.M. State, explain and interpret the PMDAS rule; Simplifies a series of operations on whole numbers involving more than two or more operations using PMDAS or GMDAS rule; Performs a series of more than two operations on whole numbers applying Parenthesis, Multiplication, Division, Addition, Subtraction, (PMDAS) or Grouping, Multiplication, Division, Addition, Subtraction (GMDAS) correctly (M5NS-Ic-) Value focus: Manifests enthusiasm in solving word problem involving more than two operations. II. CONTENT A. Topic B. References C. Materials III. PROCEDURE A. Learning Activities 1. Preparation Perform a Series of More than Two Operations on Whole Numbers 21st Century Mathematics Textbook for Grade 5, page 1825, DepEd TV Official YouTube Channel (Grade 5 Math Q1, Episode 5) https://www.youtube.com/watch?v=cNiQisoCCiQ, PowerPoint Presentation, Flash Cards TEACHER’S ACTIVITY LEARNERS’ ACTIVITY Prayer Greetings -In Jesus name we pray, Amen! “What an amazing day for a brandnew adventure!!!” “Good day class!” “Welcome to another day of exciting and interesting way of solving Math Problems.” Energizer -Good morning Ma'am. “Pupils, please stand for an energizer.” “Very good! "You may now take your sit.” “Today, we will join with the Mathastic Heroes for an exciting and interesting learning.” “All the skills that you will learn today will help you in becoming stronger and wiser in the future.” -Yes, we are ready teacher. “Are you ready?” “Pupils, gear up!” “You are in for another fantastic day with the Mathastic Heroes!” 2. Review “Pupils, for today’s lesson, we will learn how to simplify expressions with multiple operators and solve for their final values. After going through this lesson, you are expected to Perform a Series of More than Two Operations on Whole Numbers.” “Before going through our lesson for today, let’s review some basic skills that we will need. This review will be a group activity. You will not answer all the equations. Use your metacards and pentel pen in answering the equations.” Group 1 will answer equation # 4 Group 2 will answer equation # 3 Group 3 will answer equation # 2 Group 4 will answer equation # 1 “Pupils, there’s only one amazing superhero to call for a recall. It’s review time with the Amazing Super Driller.” -Pupils will answer the expressions given by Amazing Super Driller 1. 2. 3. 4. 5. B. Developmental Activities 1. Motivation 12+8+5 15+20+9 30+10-20 9x4+4 25x2+30 “Since, we are done with our review, Super Driller will be back with more fun and exciting exercises later. I am sure that you can answer all his drills with your super power skills. -Yes/No, teacher! “Let me ask you, have you been to a mall?” -Yes/No, teacher! “Can you still remember when your parents bought you a new t-shirt?” “Today, we will fly off to a beautiful mall with our story teller, let’s have a trip and go shopping with the superhero who loves to tell story (it’s SuperMath) around the Math Universe together with sir Ike and Miss Wennie.” -Pupils listen & watch the story carefully. “Going back to our class, Sir Ike and Miss Weng need to know the sum of 4 t-shirts they are buying, less the discount from the mall, since they agreed to split the total cost, we will help them in solving how much each them need to pay.” 2. Presentation “Are you ready?” “When solving for numbers with multiple operations involved, what do you think is the first thing to do?” -Yes/No Teacher -We have no idea Teacher “Do you have any idea on how to solve expressions that involve multiple operations?” -Yes/No Teacher “What rule are we going to use?” -PMDAS/GMDAS “That’s right! PMDAS or GMDAS!” “For today’s lesson we will learn how to perform a series of more than 2 operations on whole numbers using PMDAS/GMDAS rule.” “Do you have any idea what PMDAS/GMDAS mean?” 3. Abstraction/ Discussion -Yes/No teacher -The Mathastic Heroes will help us in explaining and interpreting Parenthesis, Multiplication, Division, Addition and Subtraction or the PMDAS Rule or Grouping, Multiplication, Division, Addition and Subtraction or the GMDAS Rule.” “Now, going back to Sir Ike and Miss Weng; Learners listen to Sir Ike and Miss Wennie went to the the discussion mall and plan to buy 4 t-shirts worth attentively and 400.00 pesos each with 200.00 pesos participate well. discount for each item, they plan to split the total cost. What will be the numerical expression to represent this situation and how much will they share each for the total cost?” “In this case, let’s apply your super power skills in solving problems.” “Can you still remember the steps in solving problem? Let me help you.” -First Step: Understand the Problem Question 1: -What is asked in the problem? “For this problem, what is asked is the numerical expression or the number sentence to represent this situation and the amount of money each one will pay.” Question 2: -What is/are the given facts? a. The price of each shirt worth 400.00 pesos. b. The total number of shirts purchased which is 4. c. The discount to the price of each item which is 200.00 pesos. -Second Step: Make a Plan. Question: -What strategy/operation will be used? “In this case, we will use the PMDAS/GMDAS Rule to solve for the numerical expression” “But before we solve, let’s identify the number sentence of the word problem” “Let’s group the cost of each t-shirt with the discount given, so that will be; (400-200) since they will buy 4 t-shirts, we will multiply it by 4, now we have; (400-200) x 4 lastly, since Sir Ike and Miss Weng planned to divide the total cost to each of them, we divided it by 2 so, our final numerical expression will be;” (400-200)×4÷2 -Third Step: Solve the Problem “Let’s begin with the numbers inside the parenthesis (400-200)×4÷2 (400-200) =200×4÷2 (200×4) =800 (The total price of 4 t shirts worth 400.00 pesos each, less than the discount which is 200.00 pesos each, but we still need to divide the total cost so Sir Ike and Miss Weng will know how much they need to pay.) =800÷2 =400(Sir Ike and Miss Weng will pay 400.00 pesos each) Now, let’s talk about the rules and concepts of operations using the PMDAS/GMDAS Rule First, let us know what is PMDAS- it is an acronym that stands for; P-parenthesis M- multiplication D- division A- addition S- subtraction While GMDAS stands for; G- grouping symbols M- multiplication D- division A- addition S- subtraction To perform a series of operations on whole numbers involving more than 2 operations using PMDAS or GMDAS, remember these rules; Rule # 1: Perform the operations within each pair of grouping symbols (parenthesis, brackets, and braces) beginning with the innermost pair. Rule # 2: Perform multiplication and division as they occur from left to right. Rule #3: Perform addition and subtraction as they occur from left to right. 4. Guided Practice A. Teacher to Pupil “Pupils, I think you are now ready to solve for more, here’s an example;” 20+10×(30-25) (First, solve the equation inside the parenthesis) 20+10×5 (Then, perform the multiplication) 20+50 (Then perform the addition to get the final answer) The final answer is, 70. “Let’s have another example, Pupils will answer the activities given Example 1: 25+15-(6x2)+60 Example 2: 216-118+(10x9)-109 “Now, let’s check if you are listening well, let’s have a drill with, Super Driller.” (Group Activity) “Each group will solve and answer the activity given. Whichever group gets the correct answer in a given period of time will be the winner. Be careful and be mindful while doing the activity.” “For the next activity, each group will choose 1 representative to play and solve the game involving 2 or more operations.” Royal Family Rescue Students are on a mission to rescue the Royal Family. They take the roled of armor or Sally first. The challenge is to solve the order of operations problem’s stages and move up the ladder. The task requires you to select the operation and the numbers which you choose to solve first. “There you have it Pupils, you have just gained another super power in Mathastic Heroes, solving problems with more than 2 operations on whole numbers using PMDAS or GMDAS Rule.” “Now, here’s another Mathastic Hero to test if you can still remember the super rules and concepts in solving problems with more than 2 operations on whole numbers using the PMDAS or GMDAS Rule.” “She is always wondering if you mastered your skill. She is WonderWoMath.” B. Pupil to pupil (Group work) “Pupils, you are now on in your final quest. We will have a group activity. Each group will choose an envelope containing equations. You are going to answer the equation found inside the envelope that you have chosen. The group that can answer the equation correctly will be the winner. Then each group will choose a representative to explain their answer. ” These are the equations found in the envelopes: 7 × 2 − (9 + 2)= (6 ÷ 3) × (11 − 4) = 9 × 3 + (20 − 18)= (37 − 17) − 10 × 4 = C. Pupil to Material “Each group will be given with a manila paper for them to show the steps in solving problem.” Solve the problem by showing the steps in problem solving. Learners actively engage with the group. Groups 1 & 4 Carla receives a daily allowance of 60.00 pesos. She spends 22.00 pesos for her transportation, 20.00 pesos for snacks, and saves the rest. How much does she save in 21 days? Groups 2 & 3 There are 38 books on the shelf. Marta put 10 more books on the shelf and her mom put 4 more books on the shelf. Her sister borrowed 15 books for her classmates. How many books are on the shelf now? 5. Generalization Have the pupils formulate the generalization by asking: “What have you learn about our lesson today?” Have the pupils understand the following concepts: “How are we going to perform a Series To perform a of More than Two Operations on series of Whole Numbers?” operations on whole numbers involving more than 2 operations using PMDAS or GMDAS, remember these rules; Rule # 1: Perform the operations within each pair of grouping symbols (parenthesis, brackets, and braces) beginning with the innermost pair. Rule # 2: Perform multiplication and division as they occur from left to right. Rule #3: Perform addition and subtraction as they occur from left to right. IV. EVALUATION V. ASSIGNMENT Prepared by: “Let’s check if you are listening well.” Solve the following. 1. (20 + 12) ÷ 4 = ________ 2. 50 + 6 × (11 − 6) = ________ 3. 50 + 6 × 4 = ________ 4. 9 × 28 ÷ 7 = ________ 5. 18 − (21 − 5) = ________ 6. 15 + 10 - 20=____________ 7. 50 - ( 5x5 ) +10=__________ 8. 20 - (2x6) =______________ 9. 30 + (5x3) - 20=__________ 10. 5 x 5 + (16-10)=_________ Solve the following. 1) 42 ÷ 6 + 9 × (5 − 2) = _______ 2) 42 ÷ 6 + 9 × 5 − 2 = _______ 3) (42 ÷ 6 + 9) × 5 − 2 = _______ 4) 12 × 12 ÷ (4 + 5 − 6) = _______ 5) 23 + 48 ÷ 8 − (7 + 5) = _______ SHERYL F. ARESCO Teacher Checked by: JOHN AYAN L. EULDAN DevEdD TIC