LEARNING SCENARIOS

Teacher : “Morning, student.” (Giving a friendly condition in learning process).

Student : “Morning, Miss.”

Teacher : “How are you?” (Giving a friendly condition in learning process).

Student : “Fine, Miss.”

Teacher : “Nice to meet all of you in healthy conditions. ell, !efore we start our 

lesson today, let us "ray together. #ray !egan. $Students and teachers "ray

together%. #ray its o&er. '(ay student, now at the first ) will continue to

chec(ing your a!sent. *nyone a!sent today?” (Giving a friendly condition in

learning process).

Student : “No, Miss.”

Teacher : “*ll of you my diligent student, right. Now we will learn a!out the +o""ler 

effect. )ndicator of this learning are you !e a!le to e"lain the definition of 

+o""ler effect, (nowing the "henomenon of +o""ler effect, understanding the

formula and a""lied it to sol&e some "ro!lem of +o""ler effect. -ut !efore we

start this lesson, are you guys ready for the lesson today?” (concentration)

Student : “es, Miss.”

Teacher : “That/s great, it means you/&e learned the cha"ter to this meeting. '(ay

student, ) want to as( you, ha&e you seen the am!ulance car and "olice "atroly

car in the road?” (Question of trackers and deployment).

Student : “)/m, Miss. *t that time ) was sitting in a sho" near the road, there is

am!ulance with its sirens fast mo&ing.”

Teacher : “0ood o"inion. *nother o"inion again?” (Giving an opportunity to answer 

 for the other student).

Student : “)/m, Miss. hen ) was riding a !i(e. ) was heared an am!ulance sirene from

 !ehind me. hen the am!ulance mo&ing near to me, then siren &oice e&en

louder. -ut, when the car is far away of me, then siren sounds is smaller.”

Teacher : “)nteresting e"eriences. *nother o"inion again?” (Deployment, giving an

opportunity to answer for the other student).

Student : “)/m, Miss. *t that time there was a "olice car "ar(ed com"lete with siren

&oice from across the way. hen ) was a distance away !y car, ) heard the

sirens sound small. Howe&er, when the distance to the car ) got closer, the

sound of sirens gradually loudly.”

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Teacher : “0ood. ell, there are the third o"inion of your friends. 1et2s gi&e a""lause

to your friends3 To understand more clearly a!out the e&ents of the +o""ler 

effect, let2s see the "henomenon &ideos and an animation of +o""ler effect in

the slide.” (Preparation to showing the phenomenon videos and an animation

of Doppler effect, Concentration).

Student : Student watched animated with enthusiasm.

Teacher : “There are an animation and "henomenon a!out the +o""ler effect. *nyone

can hel" me to related the +o""ler effect with an "henomenon &ideos and an

animation !efore?” (nderstanding !uestion, asking a relevant answers).

Student : “)/m Miss. +o""ler effect is related to the distance of the wea( sound loud

that we hear de"ends on the distance of the listener and the sound source.”

Teacher : “ell, guys. our answer is not wrong, !ut it needs to !e com"leted further.

1et anyone who can com"leted your friend answer?” (Giving the opportunity

to answer for others student and deployment).

Student : “From the o"inion !efore, ) can conclude that if the sound source and listener 

are mo&ing relati&e to each other $away from or close to% then the fre4uencies

ca"tured !y the o!ser&er5listener is not the same as the fre4uency emitted !y

the source.”

Teacher : “6actly. * change in the o!ser&ed fre4uency of a wa&e, as of sound or light,

occurring when the source and o!ser&er are in motion relati&e to each other,

with the fre4uency increasing when the source and o!ser&er a""roach each

other and decreasing when they mo&e a"art. This effect was disco&ered !y the

*ustrian "hysicist 7hristian +o""ler in 89;. )n honor of the disco&ery of this

effect is called the +o""ler effect. <ntil this, any!ody not clearly a!out the

+o""ler effect?” ("sk for student views)

Student : Student was silent.

Teacher : “ell, !ecause no one raise your hands, ) thin( all of you already understand

a!out the +o""ler effect. Now, who can hel" me to conclude the lesson in this

meeting?” (Questions of understanding)

Student : “)/m, Miss. The +o""ler effect is a change in the fre4uency recei&ed !y the

o!ser&er $listener% due to relati&e motion !etween the sound source to the

listener. The eam"le of +o""ler effect in daily life as a motorcycle s"eeds

forward, the fre4uency $and "itch% of the sound wa&es in front of the

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motorcycle !ecome higher, and the fre4uency $and "itch% of the sound wa&es

 !ehind it !ecome lower.”

Teacher : “0ood =o!. ) thin( the time is enough for this meeting. For the net wee(, we

will continu to disscuss a!out +o""ler effect formula/s. #lease, doing your 

homewor( at home, "age > num!er 8@8. )f you ha&e trou!le at home, you

can find me in the office when resting time. ell, !ecause at the !eginning we

started with a "raying, then right now we close with "raying again. #ray is

 !egin. #ray was closed. 0ood afternoon guys. 6n=oy your resting3” (Giving a

evaluation as a homework and the opportunities to asking, when their find the

 pro#lem at home).

Student : “-ye, Miss.”

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