Transcript
August 18, 2014 I. Objectives At the end of the lesson, the grade 4 pupils should be able to - 1. Add 2 – one digit addends with sum up to 10 using the count on and number bond methods. II. Subject Matter Topic: Addition of 2 One-Digit Addends Reference: Soaring 21 st Century Mathematics 1, 2 nd edition, pages 138 – 151. Materials: none III. Daily Routines 1. Greetings 2. Prayer 3. Checking of Cleanliness 4. Checking of Attendance IV. Procedures A. Motivation There are three balls given and it will be added with one ball, how many balls are there all in all? So, 3 + 1 = 4 B. Introduction Addition is putting things together or combining numbers. The symbol used in addition is “plus” or “+“. There are two ways in adding, 3 + 1 = 4 This is called the horizontal way of adding because it is written in the form of a horizontal line. + This is called the vertical way of adding because it is written in the form of a vertical line. Naming the parts of an addition sentence. The numbers being added is what we call the addends. The answer in addition is called the sum. C. Lesson Proper Today you are going to learn about “Addition of 2 One -digit Addends. a. Addition using the number bonds 1. 4 and 3 make 7 We write: 4 + 3 = 7 or The sum of 4 and 3 is 7, or 4 added to 3 is 7 or 4 plus 3 equals 7. 2. 3 and 5 make 8. We write 3 + 5 = 8 or The sum of 3 and 5 is 7, or 3 added to 5 is 8 or 3 plus 5 equals 8. 7 4 3 b. Counting On 1. 4 + 1 = ? 1 2 3 4 5 6 7 8 9 10 Start from 4, then move 1 more step forward. You stop at 5. So, the sum is 5. We write: 4 + 1 = 5 or 2. 3 + 4 = ? 1 2 3 4 5 6 7 8 9 10 Start from 3, then move 4 more step forward. You stop at 7. So, the sum is 7. 3. 5 + 5 = ? 1 2 3 4 5 6 7 8 9 10 Start from 5, then move 5 more step forward. You stop at 10. So, the sum is 10. D. Application Answer page 141 – 142 of Let’s Work Together, A and B. V. Generalization 4 added to 5 is? 1. What are the two ways of adding 4 and 5. Write it on the board. 4 + 5 = 9 or 2. Name the parts of each addition sentences. 4 + 5 = 9 or 3. Add the numbers using counting on. addends sum addends sum 1 2 3 4 5 6 7 8 9 10 4 + 5 = 9 VI. Assignment Answer page 143, C and D of On Your Own. August 19, 2014 Copying of pointers and checking of assignments. August 20, 2014 I. Objectives At the end of the lesson, the grade 4 pupils should be able to - 1. add 2 – one digit addends with sum up to 10 using the count on and number bond method; and 2. solve story problems involving addition II. Subject Matter Topic: Addition of 2 One-Digit Addends Reference: Soaring 21 st Century Mathematics 1, 2 nd edition, pages 138 – 151. Materials: none III. Daily Routines 1. Greetings 2. Prayer 3. Checking of Cleanliness 4. Checking of Attendance IV. Procedures A. Motivation Add the following numbers using counting on. ( The questions will be answered on the board.)
