Tesis ini membahas efektivitas penggunaan video sebagai media ajar dalam kelas tata bahasa tingkat pra-madya. Komponen tata bahasa yang diajarkan adalah kala lampau dan kala kini. Penelitian ini merupakan penelitian kuasi eksperimental dengan desain post-test control group. Data diperoleh dari pre-test, post-test, kuesioner gaya belajar, kuesioner persepsi pemelajar terhadap penggunaan video dalam pengajaran dan wawancara. Hasil penelitian menunjukkan bahwa hasil belajar siswa yang belajar kala dengan menggunakan video lebih tinggi daripada hasil belajar siswa yang belajar dengan menggunakan buku ajar.Selain itu, pengajaran dengan video meningkatkan nilai siswa dengan berbagai gaya belajar. Perbedaan kenaikan nilai tidak signifikan karena jumlah siswa dengan gaya belajar visual sangat sedikit dibandingkan jumlah siswa dengan gaya belajar non-visual. Kendatipun demikian, hasil kuesioner persepsi gaya belajar menunjukkan bahwa pengajaran dengan video terbukti meningkatkan minat belajar pemelajar kelas eksperimental. Oleh karena itu, peneliti merekomendasikan penggunaan video sebagai salah satu medium ajar kala di dalam kelas.

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This thesis discusses the effectiveness of video usage as a teaching medium in pre-secondary grammar class. The grammar points taught were simple past tense and simple present tense. This research is a quasi-experimental research with post-test control group design. Data were obtained from pre-test, post-test, learning style questionnaire, questionnaire of student perception towards the use of video in teaching, and interview. The results showed that the scores of students who learned with video were higher than the scores of students learning using textbooks.  It was found that using video as the teaching medium increased the students scores in all categories of learning styles. It was also found that no significant difference was found in the results obtained by students with visual learning style compared with students with non-visual learning styles. This was due to the small number of students with visual learning style in this reseacrh.  However, the learning-style-questionnaire results revealed that learning with videos proved to be enjoyed by the learners. Therefore, the researcher recommends the use of video as one of the grammar-teaching medium in a classroom.