LESSON PLAN

Level of Study : Senior High School

Subject : Chemistry

Topic : Stoichiometry (Buffer solution and Hydrolysis)

Subtopic : The graph of acid base titration

Grade/Semester : XI/II

Time Allocation : 2x45 minutes

I. STANDART COMPETENCE :

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

application.

II. BASIC COMPETENCE :

Using the curve of pH value changing in acid base titration to explain buffer solution and

hydrolysis.

III. INDICATOR

A. Cognitive

1. Product

Analyzing the graph of titration result of strong acid and strong base, strong acid and

weak base, weak acid and strong base to explain buffer solution and hydrolysis.

2. Process (Study skill, Learning strategies)

Analyzing the graph of titration result of strong acid and strong base, strong acid and

weak base, weak acid and strong base to explain buffer solution and hydrolysis

through discussion

B. Affective

1. Character Behaviour

1. Accurate

2. Independent

3. Open minded and listen friend’s opinion

4. Help friend that needed

2. Social Skill

1. Be a good listener

2. Asking skill

3. Giving opinion

4. Telling information

IV. LEARNING OBJECTIVES

A. Cognitive

1. Product

Student can analyze the graph of titration result of strong acid and strong base, strong

acid and weak base, weak acid and strong base to explain buffer solution and

hydrolysis exactly.

2. Process

Given student book and worksheet, student can Analyzing the graph of titration result

of strong acid and strong base, strong acid and weak base, weak acid and strong base

to explain buffer solution and hydrolysis through discussion exactly.

B. Affective

1. Character Behaviour

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

progress in showing character accurate, independent, 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. Be a good listener

2. Asking skill

3. Giving opinion

4. Telling information

V. LEARNING MATERIAL

Graph of titration strong acid and strong base

Graph of titration strong acid and weak base

Graph of titration weak acid and strong base

Graph of titration weak acid and strong base

VI. LEARNINGMODEL :

Learning model : Cooperative

Type : Think Pair Share (TPS)

Learning method : Discussion, presentation and question and answer

VII. TOPIC : Stoichiometry (Buffer solution and Hydrolysis)

SUBTOPIC : The graph of acid base titration

VIII. LEARNING ACTIVITY

A. Introduction

Phase 1 : Present Goals and Set

Exploration

1. Teacher relate the topic that will be studied with the students’prior knowledge about

buffer solution and hydrolysis (stoichiometry)

2. Teacher motivate the student by asking to students “What is the mix solution that can

make the pH decrease or increase?”

3. Teacher explain the learning objective by using power point media.

B. Main Activity

Phase 2 : Present Information

Elaboration

4. Teacher distribute worksheet to each student.

5. Teacher explain outline of the matter by using power point media

6. Teacher inform to student about the learning model that will be used.

Think

7. Teacher ask the student doing worksheet that have been distribute independently

accurately.

8. Teacher walk around and observe student activities

Phase 3 : Organize Student Into Learning Team

Pair

9. Teacher divide the students into groups. Each group consist of two students (in

pairs).

Phase 4 : Assist teamwork and study

10. Teacher ask the student to discuss with member of each group about answer of

worksheet.

11. Teacher walk around and observe the activities of students in the group by

emphasize to student that open minded and listen friend’s opinion, and help friend

that needed are required in the discussion process.

12. Teacher guide the students in the group who have difficulty.

Phase 5 : Test over materials

Share

13. Teacher ask the students to present the result of their discussion in front of the class

with their group and the other students to be good listener.

14. Teacher ask the student to respond the discussion result of group presentation (giving opinion).

15. Teacher respond the ideas during the discussion.

16. Teacher give opportunity to student to ask the material that has not been understood.

C. Closure

Phase 6 : Provide Recognition

Confirmation

17. Teacher give feedback to the learning material

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

19. Teacher give reward for the best group

20. Teacher end the learning process.

IX. LEARNING SOURCE

1. Student handbook

2. Worksheet

3. Computer and LCD

4. Power point media

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.

WORKSHEET

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

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

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

I. Standart Competence :

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

application.

II. Basic Competence :

Using the curve of pH value changing in acid base titration to explain buffer solution and

hydrolysis.

III. Indicator

Analyzing the graph of titration result of strong acid and strong base, strong acid and weak

base, weak acid and strong base to explain buffer solution and hydrolysis

Read your book carefully, and then answer this question!

20 mL of KOH solution 0,1 M is dropped by CH3COOH solution 0,1 M

a. Predict the first ph of KOH

b. Based on the theory, how ml of CH3COOH solution is needed to get equivalent point?

c. How is the ph value in equivalent point about?

d. Draw its titration curve

Answer :

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

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

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

---- Good Luck ----

TABLE SPECIFICATION ASSESMENT SHEET

Learning Source Asessment Sheet and item test

Key of Assesment Sheet and item test

1. ProductStudent can analyze the graph of titration

result of strong acid and strong base,

strong acid and weak base, weak acid

and strong base to explain buffer

solution and hydrolysis exactly.

Product assessment

sheet (AS 1)

Key of assessment

sheet product.

3. ProcessGiven student book and worksheet,

student can Analyzing the graph of

titration result of strong acid and strong

base, strong acid and weak base, weak

acid and strong base to explain buffer

solution and hydrolysis through

discussion 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. Independent

3. open minded and listen friend’s opinion

4. help friend that needed

Character assessment

sheet (AS 3)

At least get an

assessment

indicates the

progress and

entrusted to the

judgment

Assessors/Teachers

4. Social Skill

Involved in Teaching and Learning

Process, student marked advance in

social skills :

Social skill Assesment

Sheet (AS 4)

At least get an

assessment

indicates the

progress and

1. Be a good listener

2. Asking skill

3. Giving opinion

4. Telling information

5. Respect other

entrusted to the

judgment

Assessors/Teachers

Assesment Sheet 1 (AS 1)

PRODUCT ASSESMENT SHEET

Student Name: Class: Date:

Read your book carefully, and then answer this question!

20 mL of KOH solution 0,1 M is dropped by CH3COOH solution 0,1 M

a. Predict the first ph of KOH

b. Based on the theory, how ml of CH3COOH solution is needed to get equivalent point?

c. How is the ph value in equivalent point about?

d. Draw its titration curve

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. Analyzing the graph of titration

result of strong acid and strong base,

strong acid and weak base, weak acid

and strong base to explain buffer

solution and hydrolysis through

discussion

100

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. Independent

3. Open minded and

listen friend’s

opinion

4. 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. Be a good listener

2. Asking skill

3. Giving opinion

4. Telling information

Gresik, 17 July 2011

Chemistry Teacher

( )