One morning in the class at JUANG
Senior High School. All of student are listening the explanation of teacher and
students take him seriously. After explain her lesson about “atom structure”,
teacher ask her student about what you do not understand.
Teacher : ok students,is there
any question about my explanation?
Student : I’m sir, i’m not
understand about electron, proton, and neutron sir
Teacher : Ok,i will explain again
about electron, proton, and neutron. electron is A subatom that has a negative
charge and these particles do not have any substructure so that it is believed
to be ementer particles. proton is A subatomic particle that has a positive
charge. and neutron is Subatomic particles that have a charge that is neutral and
somewhat heavier than protons.
student : Ok sir. I’m understand now. Thank you sir.
Teacher: ok, it’s not problem.
Anyting else?
All of sudent silent and teacher
continued..
Teacher : ok. If don’t any
question. I want you tu make 3 group.
All student make 3 group and...
Teacher : task for group 1 are relationship
between electron, proton and neutron in isotop. Task for group 2 are relationship
between electron, proton and neutron in isobar. and task group 3 are relationship
between electron, proton and neutron in isoton. you can find this task in books
or internet. I’m give you 30 minutes to discuss about your tusk and you must
make a summary that you discuss and presentation your discuss. Are you
understand?
All student: oke sir...
Teacher : Okay,now you must start
tu discuss about your task.
After 30 minutes...
Teacher : Time to discuss is
over,you must collect your group’s summary.
All student collect their group’s
summary and...
Teacher: Good. We will start the
presentation for group 1 to explain about their discuss
Group 1: we will presentation
about relationship between electron, proton and neutron in isotop. From the
book we read, isotop is Elements that have the same number of electrons and
protons but different numbers of neutrons. So, relationship between electron, proton and
neutron in isotop is to determine the isotop with the same number of proton,
but the number of neutron is different. Ok,our presentation is over, and we
will open 1 question.
Other student : can you give me
example for your presentation?
group 1 : yes, for example element
H have atom mass is 1, atom number is 1 and element H have atom mass is 2, atom
number is 1. this isotop because electron and proton from 2 this element is
same and netron not same. Are you understand?
Other student: ok, I’m understand
now.
Group 1 : Ok. I think that’s all
about our presentation and for your attention thank you.
Teacher : Good job. Please give
them applause. That’s a good presentation,we will listen explanation of group
2.
Group 2 : we will presentation
about relationship between electron, proton and neutron in isobar. From the
book we read, isobar is an element that has the same mass atom, but has
different number of protons and neutrons. So, relationship between electron, proton and
neutron in isobar is to determine the isobar with the same mass atom, but
proton and neutron is different. Ok, our presentation is over, and we will open
1 question.
Other student : can you give me
example for your presentation?
group 2 : yes, for example hidrogen
have atom mass 3, atom number 1 and helium have atom mass 3, atom number 2.
this isobar because from 2 element have atomm mass is same and atom number not
same. Are you understand?
Other student: ok, I’m understand
now.
Group 2 : Ok. I think that’s all
about our presentation and for your attention thank you.
Teacher : Good job. Please give
them applause. That’s a good presentation,we will listen explanation of group 3.
Group 3 : we will presentation
about relationship between electron, proton and neutron in isoton. From the
book we read, isoton is a condition where two element have the same number of
neutron. So, relationship between
electron, proton and neutron in isobar is to determine the isoton with the same
number of neutron. Ok, our presentation is over, and we will open 1 question.
Other student : can you give me
example for your presentation?
group 3 : yes, for example H have
atom number 1, atom mass 3, netron 3-1 =2 and He have atom number 2, atom mass
4, netron 4-2 = 2. this isoton because from 2 element have netron is same. Are
you understand?
Other student: ok, I’m understand
now.
Group 3 : Ok. I think that’s all
about our presentation and for your attention thank you.
Teacher : Good job. Please give
them applause. You have a good presentation, and you must know about
isotop,isoton and isobar. This lesson is the one of indicator for your UAS. Are
there any question?
All student: No sir..
Teacher: Ok,i think our lesson is
enough. thank you for attention, bye.
All student: bye sir
How to make the scientific approach goal is achieve?
BalasHapusto implement it correctly from 5 scientific approach
HapusExamples?
Hapusfor example :Teachers open questions for students who do not understand, create groups to discuss and ask students to present the results of the discussion
HapusUnderstanding atoms according to Dalton is the smallest particles of a substance that can not be broken down into smaller particles by ordinary chemical reactions. Do you think what reaction can decipher the atoms of the dalton's opinion?
BalasHapusThe atom is the smallest part, from the atom can not be deciphered by any reaction
HapusWhere is the example of 5 scientific approach in your dialogue?
BalasHapusObserve that when the student is observing the teacher who is explaining the lesson, asks the student when he asks the teacher of the material he does not understand, collects the information / experiments that is when the teacher makes the group and asks to search the data in the literature, associate / process the information that is compiling data already Derived from the literature, communicating that is when students are told to present from their group results
HapusWhether in space there are proton electrons and neutrons explain?
BalasHapusIf there are atoms in the rungan there will be electrons, protons and neutrons
Hapuswhat the advantage if we ask our student to discuse about their task?
BalasHapusThey will more quickly understand if there is a mistake, and if not it will make the spirit in learning
HapusWhat method you use in that dialogue?
BalasHapusIn this dialogue we use the method of discussion after the core discussed
Hapus