Ada apa dengan Aljabar?

10 Februari 11

Sudah beberapa minggu terakhir ini saya melibatkan diri untuk ikut mengurus suatu Pusat Kegiatan Belajar Masyarakat (PKBM) di pinggiran kali Semarang. Begitu setiap Senin dan Rabu saya menyempatkan hadir di tengah-tengah anak didik PKBM tersebut dan tentunya menyampaikan materi matematika. Dengan heterogensi kelas mulai dari kelas 7 sampai kelas 12 ada di ruangan tersebut. Namun beberapa kali saya menemukan kelemahan di banyak murid adalah pada materi aljabar. Bahkan pada tingkatan meteri aljabar yang paling sederhana, sebagai contoh:
a+6=10, berapakah nilai a?
Dengan soal seperti itu masih ada saja yang tak bisa menjawab, yang saya herankan menjadi sebuah pertanyaan: belajar matematika jenis apa mereka di sekolah masing-masing? padahal mereka sudah berada pada tingkatan SMP dan SMA, heran sungguh heran…
Mereka juga tak mengerti apa itu variabel dan koefisien. Hem, dari pengertiannya aljabar dasar yaitu ilmu matematika yang mempelajari sifat-sifat operasi bilangan riil, menggunakan simbol sebagai “pengganti” untuk menandakan konstanta dan variabel, dan mempelajari aturan tentang ungkapan dan persamaan matematis yang melibatkan simbol-simbol tersebut.
Saya hanya berharap hal tersebut tak menimpa pada siswa-siswa di tempat lain, jika ini juga terjadi sungguh matematika berapa pada tingkat yang sangat kritis…
Semoga saya masih bisa mengentaskan mereka dari keterlambatan ini.. Amien.

16 responses to “Ada apa dengan Aljabar?”

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    Salam sukses…

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