lesson plan tai

7/30/2019 Lesson Plan Tai

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LESSON PLAN

Unit of Education : Vocational High SchoolSkill Competency : Automotive (Teknik Kendaran Ringan)Subjects : ChemistryClass / Semester : XI / 2Standards of Competency : Understanding hydrocarbon compounds and their usefulnessBasic Competency : Describing the usefulness of hydrocarbon compunds in

human lifeTime : 2 X 45 minutes (1 meetings)

A. INDICATORS

Observing the properties of petroleum fractions

Identifying the usefulness of petroleum fractions through literature review.

B. LEARNING OBJECTIVES

Students can:

Explain the petroleum fractions

Explain the usefulness of petroleum fractions

C. LEARNING MATERIALS

Processing crude oil to obtain fractions / parts made by layer destillation. Basis of separation is the

difference in boiling point each component.The greater molecular /the longer of C chain andbranches are higher the boiling point

Petroleum Fraction Number C atom Boiling Point

Natural gas (methane 90%; ethane 10%) C1 C2 -1600C until -880C

LPG (propane, isobutane and butane) C3 C4 -400C until 00C

Petroleum ether C5 C6 200C until 700C

Gasoline C7 C8 700C until 1400C

Naftan (cyclo alkane) C9 C10 1400C until 1800C

Kerosene C11 C13 1800C until 2500C

Solar C14 C16 2500

C until 3500

CLubricating oil C17 C20 Above 350

0C

Paraffin and wax C21 C24

Residues (Asphalt, tar, etc) C36 and above

each fraction has different compositions,characters, and advantages

D. LEARNING METHOD

Team Accelerated Instruction (TAI)

A cooperative learning model type with characteristics: students study the learning material thatprepared by teacher individually. Then students make a group and the individual study achievementis brought for discussing and solving problems in each group. All members in each group areresponsible the groups answer

Lesson plan By: Titis Eswindro, S.Si


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E. STEP LEARNING ACTIVITIES

NO ACTIVITIES Time

1 Beginning Activitiesa. The teacher opens the lessonb. The teacher gives students an opportunity to ask if it encounters a new problem

related to previous material.c. Teacher provides motivation by giving the information processing petroleum and

natural gas growth and its influence on the development of technological,economic, and political

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2 Main ActivitiesTeacher guides students to:

a. Understand concept of petroleum fraction from some literatures

b. Discuss and process information to solve problem about the usefulness ofpetroleum fractions.

c. Present result of group discussion

Students:

a. Learn concept of petroleum fraction from some literatures

b. Discuss and process information from literature to overcome the problems aboutthe usefulness of petroleum fractions

c. Present the problems answer from group discussion

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3 Closing Activitya. Teacher concludes the materialb. Teacher gives a task to learn deeply from some literatures and prepare for the

next meetingc. The teacher closes the lesson

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F. LEARNING RESOURCES

Learning Resources : Petroleum Handout , Internet, Relevant Books of Chemistry Learning Media : Chart of petroleum refining.

G. ASSESSMENT

Assessment InstrumentARTICLESTASK

Prepare an article on the use of petroleum and its impact by using literature from the internet.Article is typed on A4 paper, space 1.5 and using arial 12 fontThe number of page at least 1 page, maximum 3 pages.Assessment criteria emphasis on conformity and depth of the material themeWrite down the sources of literature clearly.

POSTTEST

1. Explain three fractions of petroleum and its main compound!

2. Describe the four major uses of petroleum fractions which have number of C atoms 1-8!

3. In 2.5 liters of pure gasoline contains only isoctane and n-heptane without any additives,



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how many liters of gasoline isooktana contained in it if the octane number is 88?

KEY ANSWER POSTTEST

No Answer Score

1 Natural gas, the main compound is methane 1

LPG, the main compounds are propane dan isobutane 1

Gasoline, the main compound is isooctane 1

Solar, the main compounds are normal cetane and -methyl naphthalene 1

2 C1-C2 nature gas is used for fuel 1

C3-C4 LPG is used for fuel 1

C5-C6 petroleum ether is used for solvent and industry raw material 1

C7-C8 gasoline is used for fuel 1

3 Octane number 88 means contain 88% of isooctane 1

for octane number 88 amount of isooctane is 88% X 2,5 liters = 2,2 liters 1

Max score 10

Aspect Assessment

Affective/Sikap (S) assessed from the presence, activeness students in the learning andseriousness in the discussions and tasks based on the assessment criteria attitude

NO ASPECT DESCRIPTION SCORE

2 Activeness

Doing group discussion actively

Always 5

Often 4

Rarely 3

Seldom 2

So seldom 1

3 Responsibility

Honest doing the test and on time for doing the

task

Always 5

Often 4

Rarely 3

Seldom 2

So seldom 1

5 Discipline

Student presence

Always 5

absence 5% 4

absence 5% until 10% 3

absence 10% until 15% 2

absence lmore than 15% 1

Affective Value= total score X 6,67

Kognitif/Pengetahuan (P) is obtained from posttest, posttest value = total score X 10

Phsycomotoric/Ketrampilan (K) is obtained from the task of drafting the article with the followingcriteria

Criteria Score

Article topic suitable with topic discussed 1 2 3 4 1=less2=enough3=good

4=very good

Value= Total score X 3,75

Article arrangement 1 2 3 4

Exactness time for doing the task 1 2 3 4

Substance deepness 1 2 3 4Literature clarity 1 2 3 4

The article advantage to increase the students 1 2 3 4



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knowledge (aplicative)

Final value/nilai akhir (NA) is obtained from the affective value (S), knowledge value (P) andpsikomotor value (K) with formula like this :

NA =10

2 3K5PS ++

Graduation Guidelines and Follow-up

Minimal thoroughness criteria (Kriteria Ketuntasan Minimal) = 70. Values below 70,students are obliged to follow the remidial program, the value 70 and over 70 students attendenrichment programs

In the remidial program students do their test questions, in the enrichment program students aregiven the task to find articles about alternative fuels, such as the use of castor oil as biodiesel,etc.

Arranger

Titis Eswindro, S,SiNIM. 100331509387


lesson plan tai

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