Lesson Notes By Weeks and Term - Primary 3
Addition and subtraction
Addition and subtraction
TERM: 1st Term
WEEK: 5
CLASS: Primary 3
AGE: 8 years
DURATION: 5 periods of 40 minutes each
DATE:
SUBJECT: Mathematics
TOPIC: Addition and subtraction
SPECIFIC OBJECTIVES: At the end of the lesson, the pupils should be able to
INSTRUCTIONAL TECHNIQUES: Explanation, question and answer, demonstration, practical, assessments
INSTRUCTIONAL MATERIALS: Base 10 kit, 100 number board, scrap paper, videos from source- https://www.youtube.com/watch?v=QP_bUIwGAnY
PERIOD 1: Mental maths-subtraction with borrowing
PRESENTATION | TEACHER’S ACTIVITY | PUPIL’S ACTIVITY |
STEP 1 MENTAL MATHS | The teacher begins the lesson with some mental calculations Calculate 1. 30 – 3 = 2. 30 – 5 = 3. 40 – 2 = 4. 40 – 1 = 5. 50 – 6 = 6. 50 – 9 = 7. 60 – 8 = 8. 70 – 5 = 9. 80 – 4 = 10. 90 – 7 = | Pupils respond and participate |
STEP 2 CONCEPT DEVELOPMENT | The teacher writes 17- 9 = ___ on the board and asks the pupils how the problem can be solved. Learners should be encouraged not to use the counting method
Using the blocks and bonds strategy, the teacher explains how to solve the problem easily 17- 10,7 10 – 9 = 1 1+7 = 8 So 17 – 9 = 8
The same process is repeated with 23 – 6 = 32 – 5 = 56 – 9 =
CLASS ACTIVITY The teacher writes 43-20 = _____ on the board and asks the learners how they think the problem could be solved The teacher then emphasizes that there are no changes in the ones(3) is it is a multiple of 10(20) that is being subtracted i.e. 43 – 20 = 23
The same method is repeated with 58 – 30 = 72 – 50 = | Pupils pay attention and participate |
STEP 3 CLASS-WORK | 1. Break the numbers into blocks and bonds to find the solution a. 24 – 9 = b. 57 – 8 = c. 26 – 8 = d. 85 – 8 = e. 92 – 7 =
2 Solve the problems: a 22 – 8 = b 52 – 9 = c 77 – 9 = d 26 – 7 = e 81 – 4 =
3 What do we get if we subtract: a 63 – 10 = b 93 – 50 = | Pupils attempt their class work |
STEP 4 HOME-WORK | 1. Break the numbers into blocks and bonds to find the solution a. 63 – 9 = b. 57 – 8 = c. 45 – 7 = d. 32 – 6 = | Pupils attempt their class work |
STEP 5 SUMMARY | The teacher summarizes by ensuring the pupils solve the problems mentally and give assistance where necessary. The teacher also ensures their solid understanding of place value
She marks their class works, makes corrections where necessary and commends them positively |
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PERIOD 2: mental maths with 2-digit numbers
PRESENTATION | TEACHER’S ACTIVITY | PUPIL’S ACTIVITY |
STEP 1 ORAL ASSESSMENTS | The teacher asks questions on mental maths with 2-digit numbers treated so far | Pupils respond and participate |
STEP 2 DISCUSSION | The teacher discusses all the methods used by some learners in the oral assessments(some of the questions are solved on the board by the learners) and addresses any misconceptions that may have risen | Pupils pay attention and participate |
STEP 3 WRITTEN ASSESSMENTS | 1 Solve the following: a 65 + ____ = 70 b 34 + 6 = _____ c 71 + ____ = 80 d 46 + 4 = _____
2. Break up the number to find the solution: a. 43 + 9 = b. 29 + 5 =
3. Break up the number into tens and ones to find the solution: a. 82 – 6 = b. 66 – 9 =
4 Solve the problems: a 41 – 7 = b 53 + 9 = c 63 – 9 = d 27 + 6 = e 84 – 5 = f 37 + 5 =
5 What do we get if we add: a 13 + 80 = b 51 + 40 =
6 What do we get if we subtract a 84 – 20 = b 39 – 10 = | Pupils attempt their class work |
STEP 4 SUMMARY | The teacher marks the written assessments, corrects were necessary and commends the pupils |
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PERIOD 3: Addition using column method
PRESENTATION | TEACHER’S ACTIVITY | PUPIL’S ACTIVITY |
STEP 1 MENTAL MATHS | The teacher begins the lesson with some mental calculations Calculate 1. 9 + 5 = 2. 8 + 7 = 3. 8 + 3 = 4. 7 + 5 = 5. 7 + 7 = 6. 4 + 7 = 7. 6 + 8 = 8. 5 + 8 = 9. 2 + 9 = 10. 3 + 9 = | Pupils respond and participate |
STEP 2 CONCEPT DEVELOPMENT | The teacher writes 86 + 43 = ____ on the board. Pupils are asked to solve the above question using simplified pictorial on a place value table(they are expected to cross out hundreds, tens and ones using double lines and write arrows to show carrying movement)
| Pupils pay attention and participate |
STEP 3 CLASS-WORK | Solve the following using both the simple pictorials/place value table and the column method a. 71 + 64 = b. 53 + 65 = c. 41 + 88 = d. 85 + 92 = e. 67 + 81 =
| Pupils attempt their class work |
STEP 4 HOME-WORK | Solve the following using both the simple pictorials/place value table and the column method a. 82 + 57 = b. 31 + 95 = c. 73 + 84 = | The pupils writes it in their homework book |
STEP 5 SUMMARY | The teacher reminding the pupils how simple addition problems were solved using pictorials and column method
She marks the class work, make corrections where necessary and commends the pupils positively
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PERIOD 4: Addition using column method and number line
PRESENTATION | TEACHER’S ACTIVITY | PUPIL’S ACTIVITY |
STEP 1 MENTAL MATHS | The teacher begins the lesson with some mental calculations Calculate 1. 9 + 6 = 2. 8 + 8 = 3. 9 + 2 = 4. 7 + 6 = 5. 7 + 8 = 6. 2 + 9 = 7. 3 + 9 = 8. 6 + 7 = 9. 6 + 6 = 10. 9 + 9 = | Pupils respond and participate |
STEP 2 CONCEPT DEVELOPMENT | The teacher writes 78 + 56 = _____ on the board. Learners are asked to solve the question using simplified pictorial and are to verbalize as they solve
| Pupils pay attention and participate |
STEP 3 CLASS-WORK | Solve the following using column method a. 85 + 49 = b. 77 + 69 = c. 38 + 76 = d. 65 + 58 = e. 74 + 69 = f. 37 + 89 =
| Pupils attempt their class work |
STEP 4 HOME-WORK | Solve the following using column method a. 79 + 64 = b. 48 + 84 = c. 33 + 79 = | The pupils writes it in their homework book |
STEP 5 SUMMARY | The teacher reminds the pupils how simple addition problems were solved using pictorials and column method
She marks the class work, make corrections where necessary and commends the pupils positively
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PERIOD 5: Weekly Test/consolidations
TEACHER’S ACTIVITY: The teacher revises all the concepts treated from period 1-4 and gives the pupils follow through exercises, quiz and tests . She marks the exercises, makes corrections and commends the pupils positively.
PUPIL’S ACTIVITY: The pupils work on the worksheets and exercises given by the teacher individually
ASSESSMENT
1 Solve the following using the column method:
a 29 + 78 =
b 43 + 99 =
c 65 + 89 =
d 59 + 74 =
h. 44 + 77 =
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