9
Learning Management plan
Subject : Mathematics
Learning area : Basic mathematics
Learning Unit : 2
Learning plan : 2
Course No : M21101
Mathayomsuksa : 1
Topic : Integers
Time : 23 periods
Topic : Addition of integers Time : 5 periods
1. Learning target
Strand
Strand 1: numbers and Operations.
Standard
Standard M1.1: Understanding diverse methods of presenting numbers and their
application in real life.
Standard M1.2: Understanding results of operations of numbers, relationships of
operations, and application of operations for problem-solving.
Standard M1.4: Understanding of numerical system and application of numerical
properties.
Standard M6.1: Capacity for problem-solving, reasoning, and communication;
communication and presentation of mathematical concepts; linking
various bodies of mathematical knowledge and linking mathematics with
other disciplines; and attaining ability for creative thinking.
Grade level indicators
1) Specify or give examples and compare addition of integral numbers and subtraction of
integral numbers and 0 (M1.1).
2) Add, subtract, multiply and divide integral numbers for the purpose of problem
solving; be aware of validity of the answers; explain the results obtained from the
addition, subtraction, multiplication, and division. Also explain the relationship
between addition and subtraction, and between multiplication and division of integral
numbers (M1.2).
3) Apply knowledge and properties of integers for problem-solving (M1.4).
10
Learning objectives : Student can
Knowledge : 1) Add integral numbers for the purpose of problem solving
2) Explain the results obtained from the addition
3) Be aware of validity of the answers
Process skill : Capacity for problem-solving, reasoning, and communication;
communication and presentation of mathematical concepts.
Attitude/competency : Honesty and integrity, self-discipline, avidity for learning
and public-mindedness. / Communication capacity, thinking
capacity and problem-solving capacity
2. Concept
Addition and Subtraction
+(+x) = +x
+(–x) = –x
– (+x) = –x
– (–x) = +x
Example 4 + (+2) = 4 + 2,
5 + (–3) = 5 – 3,
8 – (+4) = 8 – 4,
9 – (–10 ) = 9 + 10
Adding an integer to a positive integer can be represented using a number line by a movement
towards the positive direction. Adding an integer to a negative integer can be represented using a
number line by a movement towards the negative direction.
3. Content
Adding an integer to a positive integer, adding an integer to a negative integer.
4. Evidence of Learning
Task : 1) Exercise 1-3 in E-Mastery PLUS Mathayom 1(page 15-16).
2) Home work in note book.
3) Interact, work and join in activities organized by their peers and their
teachers.
4) Test 2.
11
5. Assessment and evaluation
Assessment person : Tiwanon Soobphom (Teacher)
Assessment
1) Knowledge
2) Skill/Process
3) Attitude/
Competency
How to assess
asking questions,
observing,
examining
homework,
assessing projects,
portfolios,
and using written tests
problem-solving,
reasoning,
communication and
presentation
Honesty and integrity,
self-discipline,
dedication and
commitment to work,
public-mindedness,
communicationthinking – problem
solving capacity,
6. Learning process
1) Divide students in group of 3-4 people.
2) Group activities and exercises.
3) Presentation to the class.
4) Discussion, exchange of ideas.
5) Conclusion.
Assessment
Tool
observation,
homework,
written tests,
worksheet,
Criteria
60%
observation
60%
observation
60%
12
7. Procedure
Period 1
1. Introduction
1) Review knowledge about addition.
Example
Teacher : Simplify 5 + 3
Answer : 8
2) Playing a game for addition
- Divide students in groups of 3-4 people, then one group make a problem and the
other simplify it.
2. Lesson Procedure
1) Teacher represent the vocabulary :
addition,
subtraction,
multiplication,
division,
plus,
minus,
time,
divide
2) Practice to reading the vocabulary in 1)
3) Practice to reading the sentence :
Example 2 + 4 = 6
2 plus 4 is equal to 4
(-5) - 8 = -13
-5 minus 8 is equal to -13
7  (-3) = -21
7 times (-3) is equal to -21
20  4 = 5
20 divided by 4 is equal to 5
3. Conclusion
1) Students and teacher share conclusions about lesson: that is
- Vocabulary
- Read the sentence about addition, subtraction, multiplication,
and division.
2) Homework : Write the following sentence in word.
Example 4 + (-5) = -1
4 plus -5 is equal to 4
13
Period 2
1. Introduction
1) Ask students, what we learned at the end of the previous lesson.
Answer : Vocabulary in operation of the integers and how to read the sentence of
its operation.
2. Lesson Procedure
1) Teacher represent that addition of an integer to a positive integer can be represented
using a number line by a movement towards the positive direction.
Example Evaluate (-2) + 5
+5
Solution (-2) + 5 = 3, start from -2 then move 5 steps to right.
2) Ask student to Evaluate (-10) + 9, then let a student to represent in the class.
+9
Solution (-10) + 9 = -1, start from -10 then move 9 steps to right.
3) All students simplify each of the following in their notebook.
(1) 4 + 8
(2) (-5) + 8
(3) (-9) + 7
(4) 8 + 12
(5) (-4) + 10
4) Then ask students to share discussions of solution.
3. Conclusion
1) Students and teacher share conclusions about addition of an integer to a positive
integer.
Conclusion: addition of an integer to a positive integer can be represented
using a number line by a movement towards the positive direction.
14
2) Homework : 1. Simplify each of the following using a number line.
Example (1) (-7) + 12
Solution (-7) + 12 = 5, start from -7 then move 12 steps to the right.
+12
Period 3
1. Introduction
Review knowledge about addition of an integer to a positive integer by asking a few
questions.
Teacher : Can anyone tell me what we talked about last lesson ?
Answer : addition an integer to a positive integer.
Teacher : Very good, can you simplify (-50) + 40
Answer : -10
2. Lesson Procedure
1) Teacher represent that addition of an integer to a negative integer can be represented
using a number line by a movement towards the negative direction.
Example Evaluate 2 + (-5)
-5
Solution 2 + (-5) = -3, start from 2 then move 5 steps to the left.
2) Ask students to Evaluate (-1) + (-9), then let a student to represent in the class.
-9
Solution (-1) + (-9) = -10, start from -1 then move 9 steps to the left.
15
3) Ask students to evaluate 5 + (-12), then let a student to represent in the class.
Solution 5 + (-12) = -7, start from 5 then move 12 steps to the left.
-12
4) All students simplify each of the following addition in notebook.
(1) 4 + (-8)
(2) (-5) + (-7)
(3) (-9) + (-20)
(4) 8 + (-12)
(5) (-4) + (-30)
5) Then ask students to share discussion of solution.
3. Conclusion
1) Students and teacher share conclusions about addition of an integer to a negative
integer.
Conclusion: addition of an integer to a negative integer can be represented
using a number line by a movement towards the negative direction.
2) Homework: Students answer exercise 1 in E-Mastery PLUS Mathayom 1, page 15
Period 4
1. Introduction
1) Review knowledge about addition of an integer to a positive integer and negative
integer by asking a few questions.
Teacher : Can anyone tell me what we talked about last lesson ?
Answer : addition an integer to a positive integer and negative integer .
Teacher : Very good
2) Teacher represent (-9) + 12 and 5 + (-9) on the whiteboard, then ask student to
Evaluate its.
16
Solution
+12
(-9) + 12 = 3 , start from -9 then move 12 steps to the right.
-9
5 + (-9) = -4 , start from 5 then move 9 steps to the right.
3) Then ask students to share that adding an integer to a positive integer can be
represented using a number line by a movement towards the positive direction.
Adding an integer to a negative integer can be represented using a number line by a
movement towards the negative direction.
2. Lesson Procedure
1) Teacher represents this following sentence on the white board.
(1) 8 + (-5) + (-4)
(2) 3 + 2 + (-10)
(3) (-2) + (-3) + 9
2) Ask students to evaluate it. Then let a student to represent in the class. Other
students share discussion of solution
Solution
-5
-4
8 + (-5) + (-4) = 3 + (-4) = 1, start from 8 then move 5 steps to the left and then
move 4 steps to the left.
17
-10
+3
Solution 3 + 2 + (-10) = 5 + (-10) = -5 , start from 3 then move 2 steps to the right
and then move 10 steps to the left.
-3
+9
Solution (-2) + (-3) + 9= (-5) + 9 = 4 , start from -2 then move 3 steps to the left
and then move 9 steps to the right.
3. Conclusion
1) Students and teacher share conclusions about addition of an integer to a negative
integer.
Conclusion: Adding an integer to a positive integer can be represented using a
number line by a movement towards the positive direction. Addition of an integer to a
negative integer can be represented using a number line by a movement towards the
negative direction.
2) Homework: Students answer an exercise 2 in E-Mastery PLUS Mathayom 1, page 1
18
Period 5
1. Introduction
1) Teacher represents the following word descriptions on the whiteboard, then ask
students to write a positive or a negative integer.
(1) a profit of 400 Baht
(2) 4 hours before take - off
(3) 5 m above sea level
2) Then all student and teacher share discussion of solution
Solution (1) +500 Bath and 500 Bath
(2) -3 hours
(3) +5 m or 5 m
2. Lesson Procedure
1) Teacher represents this problem on the white board.
Problem : The initial temperature of a cold storage was -2 o C . Two hours later, the
temperature dropped by 3o C . When the cold storage was switched off,
the temperature rose by 7 o C . What was the new temperature of the cold
storage?
2) Ask students to solve the problem, all students share discussion of solution
Solution Teacher : This problem is about… ?
Student : Temperature
Teacher : Can anyone write an integer to represent the following word
descriptions?
(1) the temperature dropped by 3o C
(2) the temperature rose by 7 o C
Student : (1) -3
(2) +7
Teacher : Can anyone write the sentence to solve the equation?
19
Student : (-2) + (-3) + 7
Teacher : Can anyone calculate the sum of (-2) + (-3) + 7 by using a
number line
Student :
+7
-3
(-2) + (-3) + 7 = (-5) + 7 = 2, start from -2 then move 3 steps to the left and then
move 7 steps to the right.
3. Conclusion
1) Student and teacher share conclusions and write an integer to represent the word
descriptions to solve the problem for addition.
2) Homework : Student answer an exercise 10 and 3 in E-Mastery PLUS Mathayom 1,
page 15 and 16
8. Media and learning resources
1) E-Mastery PLUS Mathayom 1.
2) Library
3) Internet
9. Suggestion
………………………………………………………………………………………………….
………………………………………………………………………………………………….
(Signature)……………………………………Teacher
(…………………………..)
20
The director’s comment
......................................................................................................................................................
......................................................................................................................................................
(Signature)……………………………………
(…………………………………)
The head of department’s comment
......................................................................................................................................................
......................................................................................................................................................
(Signature)……………………………………
(…………………………………)