Lise Öğrencilerinin Mekanik Dalgalar Konusu Kavram Yanılgıları: Öğrenciler Bildikleri ve Bilmediklerinin Farkındalar mı?

Yıl 2016, Cilt: 35 Sayı: 1, 63 - 86, 21.11.2016

Erdal Taşlıdere

Öz

Bu çalışma 11. sınıf öğrencilerinin mekanik dalgalar konusunda sahip oldukları (1) doğru/yanlış bilgi farkındalıklarını, (2) farklı direnç seviyelerindeki kavram yanılgılarını tespit etmeyi amaçlamıştır. Araştırmada kesitsel tarama modeli kullanılmış olup, başka bir çalışma kapsamında geliştirilmiş olan Dört-Aşamalı Kavram Yanılgısı Testi Türkçeye çevrilerek Burdur il merkezinde öğrenim görmekte olan 275 öğrenciye uygulanmıştır. Veriler betimleyici istatistik,  frekans analizleri ve bağımlı grup t-testi ile çözümlenmiştir. Sonuçlar testin geneli dikkate alındığında öğrencilerin mekanik dalgalar konusunda doğru cevapladıkları sorulardan emin, fakat yanlış cevapladıkları sorulardan emin olmadıklarını göstermiştir. t-testi sonuçları ise öğrencilerin yalnız cevap ve yalnız açıklama aşamalarına atfettikleri güven puanlarının ortalamaları arasında cevap puanları lehine anlamlı bir farkın bulunduğunu göstermiştir. Yalnız cevap, yalnız açıklama ve her ikisi birlikte dikkate alınarak elde edilen toplam puanlar üzerinden yürütülen betimleyici istatistik sonuçları öğrencilerin mekanik dalgalar konusu kavramsal anlama düzeylerinin oldukça düşük olduğunu göstermiştir. Yanılgı puanları üzerinden gerçekleştirilen frekans analizleri ise adayların; (1) dalgaların genel özelliği ve dalga hareketinin grafiksel gösterimi, (2) dalga-parçacık hareketi, (3) frekans, kaynak ve ortam, (4) özellikleri sabit bir ortamdaki dalga hızı, konularına ait farklı direnç seviyelerinden 15 kavram yanılgısına sahip olduklarını göstermiştir. Söz konusu yanılgıların üçü yüksek dirençli, beşi orta dirençli ve yedisi ise suni yanılgı kategorisinde bulunmuştur.

Kaynakça

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