# Lesson Notes By Weeks and Term - Primary 3

TERM: 1st Term

WEEK: 5

CLASS: Primary 3

AGE: 8 years

DURATION: 5 periods of 40 minutes each

DATE:

SUBJECT: Mathematics

SPECIFIC OBJECTIVES: At the end of the lesson, the pupils should be able to

1. Carry out mental maths with 2-digit numbers-making a ten- with borrowing

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 1MENTAL MATHS The teacher begins the lesson with some mental calculationsCalculate1. 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 2CONCEPTDEVELOPMENT 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 easily17- 10,710 – 9 = 11+7 = 8So 17 – 9 = 8 The same process is repeated with23 – 6 =32 – 5 =56 – 9 = CLASS ACTIVITYThe teacher writes 43-20 = _____ on the board and asks the learners how they think the problem could be solvedThe 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 with58 – 30 =72 – 50 = Pupils pay attention and participate STEP 3CLASS-WORK 1. Break the numbers into blocks and bonds to find the solutiona. 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 4HOME-WORK 1. Break the numbers into blocks and bonds to find the solutiona. 63 – 9 =b. 57 – 8 =c. 45 – 7 =d. 32 – 6 = Pupils attempt their class work STEP 5SUMMARY 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

PERIOD 2: mental maths with 2-digit numbers

 PRESENTATION TEACHER’S ACTIVITY PUPIL’S ACTIVITY STEP 1ORALASSESSMENTS The teacher asks questions on mental maths with 2-digit numbers treated so far Pupils respond and participate STEP 2DISCUSSION 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 3WRITTEN ASSESSMENTS 1 Solve the following:a 65 + ____ = 70b 34 + 6 = _____c 71 + ____ = 80d 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 subtracta 84 – 20 =b 39 – 10 = Pupils attempt their class work STEP 4SUMMARY The teacher marks the written assessments, corrects were necessary and commends the pupils

PERIOD 3: Addition using column method

 PRESENTATION TEACHER’S ACTIVITY PUPIL’S ACTIVITY STEP 1MENTAL MATHS The teacher begins the lesson with some mental calculationsCalculate1. 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 2CONCEPTDEVELOPMENT 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 3CLASS-WORK Solve the following using both the simple pictorials/place value table and the column methoda. 71 + 64 =b. 53 + 65 =c. 41 + 88 =d. 85 + 92 =e. 67 + 81 = Pupils attempt their class work STEP 4HOME-WORK Solve the following using both the simple pictorials/place value table and the column methoda. 82 + 57 =b. 31 + 95 =c. 73 + 84 = The pupils writes it in their homework book STEP 5SUMMARY 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

PERIOD 4: Addition using column method and number line

 PRESENTATION TEACHER’S ACTIVITY PUPIL’S ACTIVITY STEP 1MENTAL MATHS The teacher begins the lesson with some mental calculationsCalculate1. 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 2CONCEPTDEVELOPMENT 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 3CLASS-WORK Solve the following using column methoda. 85 + 49 =b. 77 + 69 =c. 38 + 76 =d. 65 + 58 =e. 74 + 69 =f. 37 + 89 = Pupils attempt their class work STEP 4HOME-WORK Solve the following using column methoda. 79 + 64 =b. 48 + 84 =c. 33 + 79 = The pupils writes it in their homework book STEP 5SUMMARY 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

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 =

1. 37 + 89 =
2. 68 + 54 =
3. 87 + 38 =

h. 44 + 77 =