Beranda > fisika sma > Jembatan Keledai_1

Jembatan Keledai_1

Ide penulisan ini sebenarnya berawal dari siswa-siswi saya di sebuah lembaga bimbingan belajar dimana saya diminta untuk ikut bergabung.  Saat itu hujan deras dan anak-anak bimbingan belum pulang. Sambil menunggu hujan reda, seorang siswi menanyakan  salah satu materi SKL.

Pak gimana cara menghafalkan spektrum gelombang elektromagnetik,  soalnya kan harus urut dari frekuensi besar dulu atau dari panjang gelombangnya dulu, kalo tidak urut sih aku bisa. Jangan jawab kuasai konsepnya lho pak, soalnya guruku kalo ditanya dikit-dikit  jawabnya kuasai konseeeep.

Wah, sudah keduluan dijawab sendiri nih oleh yang tanya.  Sesaat   saya berfikir lalu saya jawab : Ya dibuat jembatan keledai lah.

Apa tuh pak ?

Lho gak tau to…. itu lho jembatan kecil buat nyeberangkan kambing.

Rupanya model-model pembelajaran yang pernah saya dapat dari Bapak/Ibu guru waktu saya sekolah dulu, nyaris sudah tak terdengar  lagi. Padahal metode jembatan keledai ampuh juga kalo kita mau kreatif, yang jelas tidak kalah dengan metode pembelajaran  berbasis IT dengan  menggunakan laptop yang harganya mahal. Tapi bukan berarti saya tidak setuju dengan model sekarang, jangan salah paham bagi yang maniak dengan pembelajaran berbasis teknologi.

Akhirnya saya buatkan juga  jembatan keledainya untuk menghafalkan spektrum gelombang elektromagnetik berdasarkan urutan dari frekuensi besar ke frekuensi kecil.

Perhatikan urutannya :

  1. sinar Gamma…… (frekuensinya paling besar)
  2. sinar X
  3. sinar Ultraviolet
  4. sinar Tampak
  5. sinar Inframerah
  6. gelombang Radar
  7. gelombang TV
  8. gelombang Radio….. (frekuensinya paling kecil)

Kita buat saja jembatan keledainya seperti ini :

Gadis X Ulangtahun Tampak Imut-imut kena Radar masuk TV dan Radio

rupanya anak-anak malah pada tertawa.

Artinya  Pak ..?

Ga = sinar gamma ;  X = sinar X, Ul = ultraviolet; Tampak = sinar tampak; Im = inframerah, Radar =  gelombang radar, TV = gelombang TV, dan Radio = gelombang radaio.

Yang lain Pak…..yang lain.

Wah hujan sudah reda…….pulang dulu ya.

besok yang lain ya Pak……?

Sambil menuju motor saya jawab sekenanya,…  Ya.

Catatan :

Mohon maaf untuk para pakar fisika barang kali cara yang saya pakai ini dianggap sebagai pembodohan siswa, saya tidak bermaksud demikian. Bagi saya, yang penting adalah bagaimana siswa merasa enjoi belajar, merasa tidak terbebani sesuatu yang dianggapnya sulit.

Kategori:fisika sma
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  31. Oktober 28, 2012 pukul 2:36 am

    keren pak… tapi kadang saya bingung bagaimana cara merangkai jembatan itu dengan menarik,,,, pernah saya coba buat,eh malah saya sendiri bingung dengan apa yang saya buat… jadi mohon bimbingannya pak…!!!

  32. Juni 16, 2010 pukul 11:21 am

    Wah gimana pemanfaatannya di matematika pak ? mampir juga dong ke blog sederhana saya …siapa tau bisa kasih ide2 dalam pembelajaran matematika SMP.Makasih….

    • Juni 16, 2010 pukul 12:11 pm

      Maaf bu, matematika menurut saya itu keterampilan. jadi siswa yang lebih banyak berlatih tentu saja lebih menguasai. Artinya dibutuhkan proses pembiasan. Siapa sih yang tidak tahu 5 x 5 = ?, semua pasti menjawab 25 bukan karena hafal tapi karena pembiasaan. penggunaan rumus praktis di matematika justru akan menyesatkan menurut saya. Saya lebih suka menggunakan logika praktis tanpa mengesampingkan konsep yang sesungguhnya.Waduh, maaf bu kok jadi ngelantur…..terima kasih Ibu sudah berkunjung di blog saya.

  33. Juni 16, 2010 pukul 11:21 am

    Wah gimana pemanfaatannya di matematika pak ? mampir juga dong ke blog sederhana saya …siapa tau bisa kasih ide2 dalam pembelajaran matematika SMP.Ma

  34. Juni 13, 2010 pukul 4:56 pm

    Tips yg bagus… perlu dicontoh..
    terima kasih telah berbagi

  35. Juni 13, 2010 pukul 2:16 am

    Wah, akhirnya mau juga nih mampir di blog saya yang masih acak-acakan. Terima kasih bang. Jangan bosan kalau saya sering merepotkan, jangan kesal kalau saya sering tanya, dan jangan mengeluh kalau kalau sering gak mudeng.

    • Juni 13, 2010 pukul 11:22 am

      Gawe gravatar, Pak (lewat edit profil). Kalau gak mau pake foto ya pake logo TS spt yg ada di media2 njenengan.
      Teguh Sasmito sdh saya add di Link Sahabat bloge nyong. Bloge p Nur jg sudah.

  36. Juni 12, 2010 pukul 5:58 pm

    Ingat jembatan keledai jadi ingat MEJIKUHINIU.
    Memang ini salah satu cara jitu dalam belajar.

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