Pembidik Mimpi

LESSON PLAN

School : Kanjanapisek Wittayalai Suratthani School

Educational Level : Lower Secondary School

Subject : Mathematics

Grade/Semester : Mathayom 1/1 / II

Topic : linear equation one variable

Time Allocation : 100 minutes

1. Lesson Concept

. linear equation one variable

- linear equation one variable,

- States one equation, and

- Settlement set.

2. Indicators

Student will be able :

1. To determine linear equation one variable.

2. To find the set of completions of linear equation one variable.

3. Objectives

Student will be able to have tolerance, curiosity and confidence, critical thinking, displine, and active involvement in group collaboration and able to choose and apply the linear equation one variable and solve settlement set from linear equation one variable.

4. Learning Content

a. The Linear Equation One Variable

The equation is a mathematical statement in the form of a symbol which states that two things are exactly the same. Linear equation is an equation that only contains variables with the power of 1. So the linear equation of one variable is an equation containing one variable with the power of 1:

Example :

1. 2x + 5 = 9

2. x + 8 = 4

in the equation only contains the variable x with the power of 1

The properties of addition and multiplication that apply to the equation, namely:

If A=B Then.

Ø A + C = B+C

Ø A X C = B X C

These properties will assist in solving these linear equation problems.
Here are some steps done in solving linear equations of one variable.

1. If you find the problem with parentheses, then remove the parentheses first by using distributive properties, then operate similar tribes.

2. Use the sum property of an equation to write the equation so that all variables are in one segment, whereas all the constants are on the other.

3. Simplify each segment.

4. Use the multiplication properties of an equation to produce an equation in the form x = constant.

5. For implementation problems, answer to the perfect sentence and use the units in accordance with the command.

To further clarify, consider the following example:

1. a linear equation 3(X+5)+2X=30 , determine the value of x.

Answer: 3(X+5)+2X=30

(3x+15)+2x=30

3x+2x+15=30

5x+15=30

5x+15-15=30-15 (The two segments are subtracted by(- 15), to make only the left segment containing the variable)

5x=15

(both segments are divided by 5 to get x on the left side)

X=3

2. a linear equation 2(3x+4) =10x , determine the value of x.

Answer:

2(3x+4) =10x

6x+8=10x

6x+8-8=10x-8 (Both segments minus 8)

6x=10x-8

6x-10x=10x-10x-8 (Both Segment minus 10)

-4x=-8

( the two segments are divided by -4 to get x on the left)

X=2

5. Assessment and Evaluation (Criteria)

1. Expected Outcomes

- Observing behavior while learning activity

- Observing the ambition to learn and commitment to work

- Checking worksheet

2. Instrument/Tasks

- Student Activity

- The evaluation form the ambition to learn and commitment to work.

3. Criteria

- The evaluation of the students worksheet

- The evaluation of the ambition to learn and commitment to work.

Quality levels

9 – 10 points = excellent

7 – 8 points = good

5 – 6 points = average

3 – 4 points = fair

0 – 2 points = improved

6. Teaching Materials

Learning Resources:

1. Student Books (Thai Language)

2. E-Book

3. Student Activity (Attactment).

4. Worksheet (Attactment).

5. Website :

Learning Media :

1. White Board

2. Board Marker

3. Glue

4. Wall Equation

5. Flipchart Paper

7. Teaching Procedures

2n d meeting (50 minutes)

Sintax	Activities Description	Duration
Opening Activity	Communication : 1. Teacher open the lesson with greeting and ask about students situation. Apperception : 1. Teacher ask student about lass topic for reminding. 2. Teacher give information about purpose of Linear equation one variable. 3. Teacher tell about the topic today Motivation : 1. Teacher explain the procedural learning to work in group. 2. Student sit in some group consist 5-6 people by teacher’s instruction.	10 Minutes
Main Activity	Observation : 1. Teacher gives a student activity paper to each group. 2. Teacher gives instruction to complete the student activity. Ask Question : 1. Student ask the teacher if they do not understand. Data Collecting : 1. Teachers guide students in groups to solve problems. 2. Students work in group to solve the problem. Data Processing : 1. Students match each peices of Wall Linear equation one variable form. 2. Students stick all the peices on the flipchart paper. Verification : 1. Teacher will cheks their activity (linear equation one variable wall) 2. If the finish, their work will be stick on the wall in the class. 3. Teacher with all of the students check together their work. 4. Teacher give reward for the student.	35 Minutes
Closing Activity	Clossing Statement : 1. Teacher ask student to conclud about lesson today and give their suggestion. 2. Teacher gives worksheet to make sure students can understand or not. 3. Teacher give information for the next lesson. 4. Student greet the teacher by saying thank you.	5 Minutes

2. Teaching Notes

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Surat Thani, 25th January 2018

Teacher Mentor, Student,

Ms.Jaranya DuangTong Rizki Ramadani Tanjung

LESSON PLAN

School : Kanjanapisek Wittayalai Suratthani School

Educational Level : Lower Secondary School

Subject : Mathematics

Grade/Semester : Mathayom 1/1 / II

Topic : linear equation one variable

Time Allocation : 2 X 50 minutes

1. Lesson Concept

.Solving linear equation one variable

2. Indicators

Student will be able :

1. To determine linear equation one variable.

2. To find the set of completions of linear equation one variable.

3. Objectives

4. Learning Content

a. The Linear Equation One Variable

Example :

1. 3x + x = 12

2. 2x + 5 = 4x - 7

in the equation only contains the variable x with the power of 1

These properties will assist in solving these linear equation problems.
Here are some steps done in solving linear equations of one variable.

1. If you find the problem with parentheses, then remove the parentheses first by using distributive properties, then operate similar tribes.

2. Use the sum property of an equation to write the equation so that all variables are in one segment, whereas all the constants are on the other.

3. Simplify each segment.

4. Use the multiplication properties of an equation to produce an equation in the form x = constant.

5. For implementation problems, answer to the perfect sentence and use the units in accordance with the command.

To further clarify, consider the following example:

1. Age of mother 3 times his child's age. Their age difference is 30 years. What is the age of the child and his mother?

Answer: Mother's age three times her anakanya

For example: the age of his son x years,

So: the age of his mother = 3x years.

Their age difference is 30 years, so the equation is

3x - x = 30

2x = 30

x = 15

So, the age of his child is 15 years and his mother (3 x 15) year = 45 years.

2. a linear equation 3(x – 1) + x = –x + 7, determine the value of x.

Answer: 3(x – 1) + x = –x + 7

3x - 3 + x = -x + 7

4x - 3 = -x + 7

4x + x = 7 + 3

5x = 10

x = 10/5

x = 2