Thursday, 15 January 2009
Rekap Data DAPODIK
www.bkddki.net
http://e-absensi.jakarta.go.id
http://nisn.diknas.go.id
www.nuptk.info
http://nisn.jardiknas.org
http://nuptk.jardiknas.org
http://npsn.jardiknas.org
METODE BELAJAR FISIKA yang MENARIK dan MENYENANGKAN
Bagaimana caranya agar siswa mau mencoba masuk lebih dalam dan manikmati fisika seperti pad lochnees coaster, kita harus mengubah persepsi siswa, bahwa fisika itu bukanlah momok yang menakutkan. Kemudian kita dorong siswa untuk mencoba dan mencoba lagi hingga siswa itu ketagihan pada fisika.
Bagaimana Mengubah Persepsi Siswa itu?
Banyak cara untuk mengubah persepsi negatif tentang fisika ini. Diantaranya adalah dengan mentempurnakan proses belajar mengajar. Aada empat hal sehubungan denagn mengoptimalkan teknik megajar : (1) menghubungkan fisika dengan kegiatan yang menyenangkan; (2) mengajak anak-anak untuk berfikir kreatif; (3) mengurangi/menghilangkan penghafalan rumus, serta (4) memanfaatkan berbagai alat peraga dan multimedia.
(1) Menghubungkan fisika dengan kegiatan yang menyenangkan.
Siswa senang balet, akan merasa senang jika kita bisa membahas bagaimana fisika menjelaskan proses keseimbangan berdiri di atas satu kaki "one pointe" atau bagaiaman dengan perubahan momentum sudut kita dapat merubah kecepatan putar, saat kita melakukan putaran ke kanan dengan satu kaki ke atas.
Dapat dibayangkan betapa antusiasnya siswa laki-laki jika kita membahas sepak bola ditinjau dari fisika, misalnya bagaimana inpuls dari kaki membuat bola terlontar, bagaimana agar tendangan kita mencapai jarak sejauh mungkin, dan bagaimana agar kita bisa menendang bola sehingga bisa berotasi dan mempunyai lintasan seperti tendangan pisangnya Pele atau Beckham.
Saya pikir siswa SMU akan suka sekali diajak ke taman hiburan anak seperti Dunia Fantasi. Dalam taman hiburan ini kita mempunyai kesempatan emas untuk menjelaskan berbagai konsep matematika seperti; gerak, gaya, hukum kekekalan energi, hukum kekekalan momentum, perubahan potensial menjadi energi gerak, momentum sudut, gerak melingkar, hukum newton dan sebagainya. Disini mereka akan mengetahui bagaimana konsep gaya sentrifugal itu dan bagaimana inersia dapat menimbulkan rasa mual dan ras aneh ketika naik kora-kora (The Swing) atau naik Roller coaster. Siswa betul-betul menikmati fisika.
Bagi mereka yang sering mengalami kamcetan jalan akan tertarik sekali untuk menganalisis bagaimana mengetahui penyebab kemacetan ini dan bagaimana cara mengatasi kemacetan secara fisika. Satu fisikawan pernah mengatakan bahwa kemacetan itu seperti gelombang yang merambat. Alangkah menariknya jika guru dapat mengupas masalah ini.
Bagaimana kita bisa dapat topi-topik seperti itu?
Dengan teknologi informasi yang sudah berkembang luar biasa, kita dapat dengan mudah mencari bahan-bahan yang kita perlukan. Banyak situs-situs bagus yang membahas tentang masalah fisika misalnya : http://www.howstuffworks.com; http://scienceworld.wolfram.com/physics; http://www.physlink.com; http://web.mit.edu/redingtn/www./netadv/ii.html. Atau kita bisa menggunakan "search engine" untuk mencari topik yang kita inginkan. jika kita ketika"physics of soccer" pada suatu "search engine" kita akan mendapat banyak sekali artikel menarik tentang sepak bola ini misalnya: http://www.oceansiderevolution.com/EINSTEIN.HTML;
(2) Mengajak anak utnuk berpikir kreatif.
Pelajaran ini menjadi menarik jika siswa diajak berpikir bebas. Siswa SMU yang mempunayi energi berlebih ini akan dapat menyalurkan energi dan kreativitasnya untuk menjawab pertanyaa-pertanyaan menantang dengan menggunak konsep fisika yang sudah dipelajari.
Misalnya pertanyaan berikut: Bagaimana kamu bergerak di atas es yang sangat licin?
Jawaban yang diperoleh dari internet adalah sebagai berikut :
- putar tangan di atas kepala, maka tubuhmu akan ikut berputar.
- lemparkan sepatumu ke depan, maka kamu akan bergerak ke belakang.
- ambil nafas dengan muka ke atas dan keluarkan nafas dengan muka ke depan. anda akan terdorong ke belakang.
- lompat secara vertikal berulang-ulang, gaya koriolis akan menggerakkanmu ke arah mendatar.
- "berenang" di udara dengan menggunakan tangan dan kaki.
- tunggu sampai kamu ditabrak oleh burung atau binatang lain.
- tunggu sampai ada gempabumi
- bersin dengan keras.
Salah satu penyebab yang membuat siswa sebal dengan fisika adalah banyaknya rumus yang harus dihafal dan tidak tahunya cara memasukan besaran yang diketahui ke dalam rumus-rumus itu. Sebab yang lain adalah berhubungan dengan matematika (proses aljabar) yang kadang-kadang membuat siswa prustasi karena berulang-ulang melakukan kesalahan.
Apakah benar rumus fisika sedemikian banyaknya? Ketika kita melakukan analisis ternyata rumus fisika tidak sebanyak yang kita bayangkan. Pada mekanika kita hanya memerlukan rumus dasar untuk gerak: rumus gaya, rumus momentum, rumus usaha/energi dan rumus-rumus momentum sudut. Rumus-rumus lain dapat diturunkan dari rumus-rumus dasar ini.
Rumus dasar inipun tidak sulit. Semua dapat diturunkan dari defenisi dan dari eksperimen. Dengan mengerti darimana rumus-rumus ini berasal, kita dapat menyelesaikan soal dengan lebih mudah.
(4) Memanfaatkan berbagai alat peraga dan multimedia.
Dalam belajar fisika, alat peraga adalah kebutuhan utama. Kadang-kadang kita membayangkan bagaimana telur bisa masuk ke dalam botol hanya dengan mengurangi tekanan udara dalam botol. Sukar membayangkan bagaimana gerakan pesawat ulang alik sebelum mendarat ke bumi. Sukar membayangkan bagaimana terjadinya efek doppler.
Kesukaran visualisasi ini akan banyak terobati dengan menggunakan berbagi alat peraga dari mulai yang sederhana hingga yang paling canggih.
Banyak orang mudah menyerah, tidak mau menggunakan alat peraga dengan alasan harga alat peraga mahal-mahal. Namun, sesungguhnya tidak demikian. Alat peraga fisika dapat ditemukan di sekitar kita dan sangat sederhana. Untuk menjelaskan hukum newton pertama, cukup gunakan kartu nama, gelas, dan koin. Letakkan koin di atas di atas kartu nama di atas gelas, sentil kartu nama, koin akan terjatuh ke dalam gelas, tidak ikut brgerak bersama kartu nama. Itulah inersia! Untuk menjelaskan getaran kita dapat menggunakan sebuah gitar. Untuk menjelaskan perubahan energi pegas menjadi energi gerak, gunakan sebuah pulpen berpegas.
Demikian pembahasan ini semoga dapat berguna bagi guru-guru, dan jika ingin meningkat yang lebih jauh lagi, sekarang ini sudah banyak software dibuat untuk membantu memvisualisasikan fisika.
Thursday, 8 January 2009
PENILAIAN KINERJA GURU DAN KEPALA SEKOLAH
Saturday, 27 December 2008
SERAT OPTIK
- Single mode: serap optik dengan core yang sangat kecil, diameter mendekati panjang gelombang cahaya sehingga cahaya yang masuk ke dalamnya tidak terpantul-pantul ke dinding cladding.
- Multi mode step index : serat optik dengan diameter core yang agak besar yang membuat leser di dalamnya akan terpantul-pantul di dinding cladding yang dapat menyebabkan berkurangnya bandwidth dari serat optik jenis ini.
- Multi Mode grade index: serat optik dengan diameter core yang besar dan mempuyai caldding yang bertingkat indeks biasnya sehingga dapat menambah bandwidth jika dibandingkan dengan jenis multi mode step indeks.
Total Internal Reflection
Ketika cahaya dilewatkan dari sebuah medium dengan indeks bias m, ke medium yang lain denagn indeks bias yang lebih rendah m2, dibelokkan menjauhi garis.
Pada sudut yang lain (sudut kritis), cahaya yang dibiaskan tidak akan menuju m2, melainkan akan diteruskan sepanjang permukaan antara kedua median (sinus[sudut kritis] = n2/n1 di mana n1 dan n2 adalah indeks bias [n1 lebih besar n2]. Jika berkas cahaya yang dibiaskan akan dipantulkan seluruhnya kembali melalui m1 (totalinternal reflection), meskipun melalui m2 mungkin menjadi transparan.
Dalam fisika, sudut kritis merupakan garis normal. Dalam serat optik, sudut kritis merupakan garis paralll yang melwati bagian tengah serat. Dengan demikian sudut kritis serat optik = (90 derajat-sudut kritis fisika).
Dalam serat optik, cahaya dilewatkan melalui core (m1, indeks bias tinggi) dengan pantulan secara konstan dari cladding (m2,indeks bias lebih rendah) karena sudut cahaya salalu lebih besar daripada sudut kritis. Cahaya memantul dari cladding meskipun sudut serat dibelokkan atau bahkan membentuk lingkaran.
Karena cladding tidak mengabsorbsi sedikitpun cahaya dari core, gelombang cahaya dapat diteruskan sampai jauh. Namun beberapa sinyal cahaya mengalami degradasi dengan serat, biasanya karena kotoran dalam kaca. Tingkat degradasi sinyal biasanya tergantung pada kemurnian gelas dan panjang gelombang yang ditransmisikan cahaya (sebagai contoh, 850nm = 60-75 persen/km; 1.300nm = 50-60 persen/km; 1.550nm = lebih besar daripada 50 persen/km). Beberapa serat optik premium menunjukan penurunan degradasi sinyal - kurang dari 10 persen/km pada 1.550nm.
Reliabilitas dari serat optik dapat ditentukan dengan satuan BER (bit error rate). Salah satu ujung serat optik diberi masukan data tertentu dan ujung yang lain mengolah data itu. Dengan intensitas laser yang rendah dan dengan panjang serat mencapai beberapa km, maka akan menghasilkan kesalahan. Jumlah kesalahan persatuan waktu tersebut dinamakan BER. Dengan diketahuinya BER maka, jumlah keslahan pada serat optik yang sama dengan panjang yang berbeda dapat diperkirakan besarnya.
Competency in English
- Lack of grammar understanding and its application,
- Insensitiveness of teachers to adjust teachng material, or modify it based on the needs and background of the students,
- Abundant number of students in one class in almost all national school, and
- Lack of reading habit among the students.
Lack of grammar understanding and its application
During her eight years of teaching junior and senior high school students English subyect privately and classically, which has given her a change to observe what her dtudents' problems in English are, the write sees that most of her students face difficulties in understanding English grammar, which in this case lies in (school) teacher's inability to involve students in comprehending the rules step bu step. Most of English teachers see grammar teaching at school as one way communication in which they genarally just inform the rules of grammar in English to students, and in turn expect students to take in those rules just like that. In other words, teachers still play a role as a'feeder' instead of a facilitator when they teach English. As a resukt, students are often stuck in confusion in their English learning.
Obviously, it is not easy to put in rules of oppositely different language to the mind of students who are not accustomed to speak, read, listen, and write in the language, and to familiarize them smoothly to it, especially when the teachers mostly always expect their students to produce correctutterance or writing in classroom, while at the same time most students are afraid and ashamed to make mistakes in front of their friends. No wonder all these thinngs make most students anxious and worry to interact and explore the language. Unfortunatelym instead of dealing with this anxiety and worry in the first place, our teachers generally tend to blame it to students' disability to understand the rules of the target language easily and quickly; sreating a gap between the students and the language. Hance, why don't teachers try to bridge this gap first by considering students' background knowledge and schemata, identified by Patricia Carrel and Joan Carson (1983, p. 556) in Joy M. Reid (1993) as the following, previously acquired knowledge is called ... background knowledge, and the previously acquired background knowledge structures are called schemata" (p. 62), which in this case is students' background knowledge of Bahasa Indonesia as their native or second language ?
In teaching her students English, first of all, the wruter is used to comparing the grammar in Bahasa Indonesia, and thr grammar in English, their general differences and similiarities, for instance the existence of tense in English but not in Bahasa Indonesia (by being careful not to stuck in 'grammar-translation' method) by comparing several sentences in Bahasa Indonesia with different adverbs of time (e.g. sekarang, besok, kemarin) but with the same verbs (e.g. makan) to their translation in English. This usually helps the students to find out little by little and understand the concept of tenses in English first (and so it goes for other basic rules in English grammar). the writer is also accustomed to display as well as contrast different sentences in different English tenses, thus get students to states their similarities and differences in order to have students see for themselves what and why they are the same, or not the same.
The few examples above show that it is important to put in the students' mind to basically know why and how the two languages are different in answers to their query and confusion. Also, the point here is to make students activate their mind by having them analyze things given by themselves. Hopefully they would feel themselves 'enlightened' and 'bridged' into the language by the guide from the teacher to figyre it out step by step. Then, gradually, students can be guided to draw conclusion and discuss some grammar rules in English by themselves under teacher's monitor, for example concluding the differences among the English tenses; their usage, theircharacteristics, the time signal, and the patterns, in order to make themfamiliar with thinking logically and critically to reach real comprehension of the language, and lead them to be able to use it functionally. The main point here is to lead students to think that their confusion is not because they do not understand the language, but because there are a lot of new things in it that they haven't explored yet. They need to realize this, so that whenever they find problems in the language, they will try to find its solution, instead of running away from it, and creating more confusion.
Tuesday, 23 December 2008
ACCREDITATION
Accreditation
School accreditation is an assessment of activities (assessment) schools systematically and comprehensively through the self-evaluation and external evaluation (to determine the feasibility of the vision and performance in school.
Basic Law school accreditation is: Law. 20 of 2003, Article 60, Government Regulation No.. 19 In 2005, Article 86 & 87 and Decree No Education. 87/U/2002.
The school aims for accreditation:
1. kelyakan determine the level of a school in the delivery of education
2. get an overview about the performance of schools
School accreditation functions are:
1. for knowledge, that is, in order to know how the feasibility of school performance & views from the various elements related to the quality of the books are developed based on indicators of good practice in school.
2. namely accountability for schools that can account for whether the services provided or to meet the aspirations of the people.
3. for the sake of development, namely that schools can conduct increased quality or development based on input from the results of accreditation.
Prinsi-accreditation principles, namely:
1. detached, objective information about the feasibility and performance of schools
2. effective, the results of accreditation to provide information that can be used as the basis for decisions.
3. comprehensive, covering various aspects and comprehensively.
4. memandirikan, schools can improve the quality beupaya says with the self-evaluation.
5. requirement (mandatory), accreditation is done for each school in accordance with school readiness.
Accreditation system has characteristics:
1. focus on the balance between reliability and performance of schools
2. kesimbangan between internal and external evaluation.
3. the balance between the formal determination of the rank and school improvement feedback.
Accreditation school implemented include:
1. Unit educational institutions (kindergarten, elementary, junior)
2. Vocational programs / Specific (SDLB, SMPLB SMIP SMK).
Accredited schools include an assessment of the nine components of the school, namely:
1. curriculum and teaching-learning process
2. administration and management of schools
3. organizational and institutional school
4. facilities and infrastructure
5. ketenagaan
6. financing
7. students
8. the role of the community
9. environment and culture school
each component described in some aspects. From each of the aspects described to the indicator. Based on indicators made items arranged in Self Evaluation Instruments and Instrument Visital.
Implemented through the accreditation procedure as follows:
1. Application request accreditation from the school.
2. Self-evaluation by schools
3. Management of the evaluation results
4. Visitasi by asesor
5. Determination results akrediatsi
6. issuance of certificates and accreditation reports.
In preparing for accreditation, the school perform the following steps:
1. School to apply for accreditation to the Accreditation Agency Province (report)-S / M to SLB, high schools, vocational schools and junior high school or to the Unit Accreditation Agency (Upa) District / City to kindergartens and primary schools of accreditation can be done by the school must obtain the approval or recommendation from the Office of Education.
2. After receiving the evaluation instrument, schools need to understand how to use instruments and perform self-evaluation. If not, schools can do to the consultation report, S / M on the implementation and use of these instruments.
3. Given the amount of data and information needed in the evaluation process itself is quite a lot, the charging instrument before the evaluation, needs to be done collecting the necessary documents as a source of information and data.
Implementing
1.
2.
3. Unit Accreditation Agency (Upa) District / City.
National Accreditation Agency School / Madrasah (BAN-S / M) is a body of strukturalyang non-technically independent and fropesionalyang consists of the elements of community organizations, education providers, universities, and relevant organizations, which have the authority to set policy, standards, systems, devices and nationally accredited.
Results school accreditation form:
1. School Certificate of Accreditation
2. School profile, strengths and weaknesses, and recommendations.
School Accreditation lease is a letter stating the recognition and appreciation to the school on the status and feasibility of the school through the process of measuring and assessing the performance of the school component, school-based standards set BAN-BC to a certain level of education.
Asesor team reports the results of which make the results visitasi, verification notes, and formulate suggestions with the evaluation results will be processed by the BAN-S / M to set the final score and ranking of schools accredited in accordance with the real conditions in schools. The determination of the value end of the rank and akrediatasi done through the plenum BAN-BC accordance with the authority. Plenum determination of the final product must be accredited attended by at least fifty percent plus one (50% + 1)
The period for accreditation for 4 years. Re-accreditation application 6 months before the validity expires. Re-accreditation for the improvement of at least 2 years since the set.
Monday, 22 December 2008
Edensor
Taman Bunga Nusantara

Madagascar II
The Soundtreck Laskar Pelangi
Saturday, 20 December 2008
Rawabengkel Country
Rawabengkel Country is located in the village of West Cengkareng, Cengkareng district, West Jakarta municipality, the Province of Jakarta at the time of this space because the small scope of traditional land owners have to sell real estate developers and real estate development is fast developing rapidly, so only a few broad menyisahkan Rawabengkel Country.
ha and Hobbes land irrigation, which reaches a radius of 17 meters from the irrigation times.
Total population is quite solid, consisting of native people and immigrants. In terms of various social and generally as traders, while the religious aspect of this is quite strong due to the quite influential community leaders.
Rawabengkel Country actually came from the name of Rawa and bengkel. see swamp is a natural village, which means that the land was closed by water and is often used to grow rice while Bengkel (how to read: beungkeul letter or e diucap slightly nasal) means hideout.According to sources from the story is actually in the Dutch colonial era village that people want to be caught by the Netherlands vague and hiding in the region, the everent is long enough so that the gion is hiding more and more, and finally called areas such Rawa workshop. And the life of the people in Rawabengkel Country quite prosperous from the harvest of rice is more irrigation or watering good enough at that time. And now only remaining function of irrigation times changed to place washing clothes in colors such as clean water is not what it used to power the water they contain salt and digging iron can damage the color of clothing, but since mid-2008, water from the taps can be enjoyed people - Rawa villagers who Workshop.
It is just The Country Rawabengkel there may be benefits, and hopefully other facilities can also taps into the village.
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