Negros Oriental State University Bais City Campus II College of Teacher Education MATHEMATICS 2 Teachers: Marilou Rodriguez Maria Ruby Mae Palomar Grade Level: II Learning Area: Mathematics I. OBJECTIVES K- To determine division as repeated subtraction and inverse operation of multiplication S- To find the quotient of division involving whole numbers A- To apply the importance of division in daily lives. II. SUBJECT MATTER Content: Division of whole numbers as repeated subtraction and inverse operation of multiplication Materials: Instructional materials and activity sheets Reference: Textbook pages 23-25 Values Integration: Sharing III. PROCEDURE A. Preparatory Activities 1. Prayer 2. Checking of attendance 3. Review “Multiplication of whole numbers” Questions to be asked: a. What is multiplication? b. Who can recite the multiplication table of number 1? 4. Motivation Let the students do the task which in titled “a piece of cake”. Every group has to divide the cake equally according to the number given. Questions to be asked: a. What have you observed in the activity? b. What have you realized while doing the activity/ c. What happened when you didn’t cut the cake equally? B. Presenting the Lesson Division – is define as that ways that numbers are combine to make new number or splitting into equal parts or groups The signs being used: ÷ - obelus → ( 10÷2) / - slash → (10/2) ______ │ - used for long division process → (2Г10) Where: 10 – dividend- The numbers being divided 2- Divisor – Numbers that divides ? – Quotient – Answer in division Division can be solved as: a. Repeated subtraction b. Inverse operation of multiplication C. Performing an activity Mechanics: a. Group the class into three. b. Each group given an activity card. c. Each team writes their answer on the sheet provided. d. The teams with most number of correct answers win the price. 1. 50 / 5=_____ 2. 30 / 10=____ 3. 10 / 1=______ 4. 12 / 2= ______ 5. 100 / 10= _____ 6. 60 / 3=____ 7. 80/ 10= _____ 8. 80 / 4=_______ 9. 90 / 3=_____ 10. 4 / 4=______ D. Processing the Results of the activity a. What did you do with your activity? b. How did you solve the problem? c. Did your group cooperate with one another? E. Summarizing the lesson Ask: a. What is division? (Division – is define as that ways that numbers are combine to make new number or splitting into equal parts or groups) b. What do you called to the number being divided? (The number being divided is called the dividend) c. What do you called to the number that divides? (The number that divides is the divisor) d. What is the answer of division? (The answer of division is called the quotient) e. How can you solve division? (We can solve division as repeated subtraction and an inverse operation of multiplication) f. How can we apply division in our daily lives, is it really helpful? (Integrated to ESP) IV. EVALUATION/ ASSESSMENT A. Find the quotient by showing that division is repeated subtraction. 1. 2. 3. 4. 24 / 8=________ 42 / 7=________ 12 / 3=_______ 25 / 5=________ B. Find the missing number. 5. 3 × ______ = 27 6. ______x 7 = 28 7. 32 / _______ = 8 V. ASSIGNMENT Find the quotient. 1. 2. 3. 4. 5. 42 / 6=______ 30 / 3=______ 14 / 7=______ 32 / 4=______ 8 / 1=_______