LESSON PLAN

Level of Study : Senior High School

Subject : Chemistry

Topic : Acid Base Solution

Subtopic : Application of the pH concept in the pollution

Grade/Semester : XI/II

Time Allocation : 3x45 minutes

I. STANDART COMPETENCE :

Understanding the properties of acid base solution, the measurement method and its

application.

II. BASIC COMPETENCE :

Describing the acid base theories by determining the solution’s properties and calculating

the solution’s pH.

III. INDICATOR

A. Cognitive

1. Product

Explaining using of the pH concept in the environment.

2. Process (Study skill, Learning strategies)

Researching the pH of river water around the school/home in work group

Calculating the pH of river water around the school/home in work group

Communicating their discussion about application of the ph concept in the

pollution based on their experiment result

B. Affective

1. Character Behaviour

1. Accurate

2. Precise

3. Responsibility

4. Honest

5. Can be trusted

6. Open minded and listen friend’s opinion

7. Help friend that needed

2. Social Skill

1. Cooperate well

2. Be good leader in experiment group

3. Be a good listener

4. Asking skill

5. Giving opinion

6. Telling information

IV. LEARNING OBJECTIVES

A. Cognitive

1. Product

Student can explain using of the pH concept in the environment exactly.

2. Process

Student can research the pH of river water around the school/home in work group

exactly.

Student can calculate the pH of river water around the school/home in work group

exactly

Student can communicate their discussion about application of the ph concept in the

pollution based on their experiment result exactly.

B. Affective

1. Character Behaviour

Participating in Teaching and Learning Process, minimal they are valued in making

progress in showing character accurate, precise, responsibility, honest, can be trusted,

open minded and listen friend’s opinion, also help friend that needed

2. Social Skill

Involved in Teaching and Learning Process, student marked advance in social skills :

1. Cooperate

2. Be good leader in experiment group

3. Be a good listener

4. Asking skill

5. Giving opinion

6. Telling information

V. LEARNING MATERIAL

pH and water pollution

The pH value can be used as the parametres of water quality. as we know that the pH

of pure water is 7. But, naturally water is seldom to have the pH value 7. For example, rain

water, it has tendency to have pH less than 7. This matter is happened because the carbon

dioxide in the air can be soluble in the rain water and form carbonic acid. The rain water

can be said as acid rain if the pH less tahn 5,6. Generally, the minimum and the maximum

pH of clean water is 6,5-8,5.

VI. LEARNINGMODEL :

Learning model : Cooperative

Type : Student Teams Achievement Division (STAD)

Learning method : Experiment, discussion, presentation and question and answer

VII. TOPIC : Acid Base Solution

SUBTOPIC : Application of the pH concept in the pollution

VIII. LEARNING ACTIVITY

A. Introduction

Phase 1 : Present Goals and Set

Exploration

1. Teacher relate the topic by giving some question about degree of acidity (pH) of acid

base solution

2. Teacher motivate the student by asking “is the water that we are drunk have pH=7?”

3. Teacher explain the learning objectives to students

B. Main Activity

Phase 2 : Present Information

Elaboration

4. Teacher explain outline of matter that will be studied.

5. Teacher inform about learning model that will be used.

Phase 3 : Organize Student into learning team

6. Teacher divided students into some groups. Each group consist of three students

heterogeneously.

7. Teacher conditioning students to gather with their groups.

8. Teacher distribute worksheet to each student.

Phase 4 : Assist teamwork and study

9. Teacher ask student to start the experiment

10. Teacher walk around and monitoring the activities of students during experiment,

emphasize that responsibility, cooperate well, be good leader in experiment group is

required to students

11. Teacher guide students in finishing worksheet based on experiment result

accurately, teliti, emphasize honest, can be trusted, and help friend that needed is

required to students.

Phase 5 : Test over materials

12. Teacher ask student to present the result of their discussion in front of the class and

other students become good listener, emphasize that open minded and listen

friend’s opinion to student during discussion.

13. Teacher gives opportunity student to ask (give question).

14. Teacher gives opportunity student to express their opinion about answer of other

friend.

C. Closure

Phase 6: Provide recognition

15. Teacher gives reward for the best group, great group and super group.

Confirmation

16. Teacher give feedback to the learning material

17. Teacher guide students to make summary or conclusion of this matter

18. Teacher end the learning process.

IX. LEARNING SOURCE

1. Student handbook

2. Worksheet

3. Material and Equipment to research and calculate pH of river water

X. ASSESMENT

1. Product

2. Process

3. Character Behaviour

4. Social skill

Gresik, 17 July 2011

Known,

Head Master of SMAN 1 Manyar Chemistry Teacher

Drs. H. M. Syafaul Anam, MM

NIP. 196502071988031012 NIP.

Experimental WORKSHEET

Name : .............................................

Class : .............................................

Absent Number : ..........................................

I. Standart Competence :

Understanding the properties of acid base solution, the measurement method and its

application

II. Basic Competence :

Describing the acid base theories by determining the solution’s properties and calculating

the solution’s pH.

III. Indicator :

Explaining using of the pH concept in the environment.

Question!!

In this activity, you’re aked to mesure the pH of some sample of water, for example river

water, drain water, or industrial waste water. Based on the test have been done , try to conclude

is it happened the pollution. If yes, try to look for the causal of pollution in the sample of water.

Conclusion

Make conclusion of this experiment!

Answer :

.........................................................................................................................................................

.........................................................................................................................................................

.........................................................................................................................................................

.........................................................................................................................................................

---- Good Luck ----

TABLE SPECIFICATION ASSESMENT SHEET

Learning SourceAsessment Sheet and

item testKey of Assesment

Sheet and item test

1. ProductStudent can explain using of the pH

concept in the environment exactly.

Product assessment

sheet (AS 1)

Key of assessment

sheet product.

2. Process1. Student can research the pH of river

water around the school/home in

work group exactly.

2. Student can calculate the pH of river

water around the school/home in

work group exactly

3. Student can communicate their

discussion about application of the ph

concept in the pollution based on their

experiment result exactly.

Process assessment

Sheet 2 (AS 2)

The assessment

are trusted to

Teacher

3. Character Behaviour

Participating in Teaching and Learning

Process, minimal they are valued in

making progress in showing character:

1. Accurate

2. Precise

3. Responsibility

4. Honest

5. Can be trusted

6. Open minded and listen friend’s

opinion

Character assessment

sheet (AS 3)

At least get an

assessment

indicates the

progress and

entrusted to the

judgment

Assessors/Teachers

7. Help friend that needed

4. Social Skill

Involved in Teaching and Learning

Process, student marked advance in

social skills :

1. Cooperate

2. Be good leader in experiment group

3. Be a good listener

4. Asking skill

5. Giving opinion

6. Telling information

Social skill Assesment

Sheet (AS 4)

At least get an

assessment

indicates the

progress and

entrusted to the

judgment

Assessors/Teachers

Assesment Sheet 1 (AS 1)

PRODUCT ASSESMENT SHEET

Student Name: Class: Date:

Answer this question based on your experiment result!

In this activity, you’re aked to mesure the pH of some sample of water, for example river

water, drain water, or industrial waste water. Based on the test have been done , try to conclude

is it happened the pollution. If yes, try to look for the causal of pollution in the sample of water.

Gresik, 17 July 2011

Chemistry Teacher

( )

Assesment Sheet 2 (AS 2)

PROCESS ASSESMENT SHEET

Student Name: Class: Date:

No. Performance Task Maximum Score Score

1. Researching the pH of river water

around the school/home in work

group

20

2. Calculating the pH of river water

around the school/home in work

group

60

3. Communicating their discussion

about application of the ph concept

in the pollution based on their

experiment result

20

Total Score 100

Gresik, 17 July 2011

Chemistry Teacher

( )

Assesment Sheet 3 (AS 3)

CHARACTER BEHAVIOURAL ASSESMENT SHEET

Student Name: Class: Date:

Guidance :

For each of the following character behavior, give a character assessment of student behavior using the following scale:D = Requires improvements C = Indicates progress B = SatisfactoryA = Very Satisfactory

Format Observation of Character Behavioural

No.Details of Task

performanceD C B A

1. Accurate

2. Precise

3. responsibility

4. Honest

5. Can be trusted

6. Open minded and listen

friend’s opinion

7. Help friend that needed

Gresik, 17 July 2011

Chemistry Teacher

( )

Assesment Sheet 4 (AS 4)

SOCIAL SKILL ASSESMENT SHEET

Student Name: Class: Date:

Guidance :

For each of the following character behavior, give a character assessment of student behavior using the following scale:

D = Requires improvements C = Indicates progress B = satisfactoryA = Very Satisfactory

Format Observation of Social Skill

No.Details of Task

performanceD C B A

1. Cooperate

2.Be good leader in

experiment group

3. Be a good listener

4. Asking skill

5. Giving opinion

6. Telling information

Gresik, 17 July 2011

Chemistry Teacher

( )