ABSTRAK.

Penelitian ini bertujuan untuk meningkatkan kemampuan menulis teks eksplanasi dan motivasi belajar peserta didik SMA kelas XI melalui pengembangan bahan ajar berbantuan graphic organizer, Penelitian ini menggunakan penelitian R&D dengan subjek penelitian kelas XI SMA di SMAN 1 Karawang, SMAN 4 Karawang, dan SMAN 5 Karawang. Adapun hasil yang diperoleh adalah pengembangan bahan ajar berbantuan graphic organizer dengan model pembelajaran Round Robin Brainstorming dapat meningkatkan kemampuan menulis teks eksplanasi. Peningkatan tersebut terlihat dari Asymp Sig (2-tailed) sebesar 0,000 < 0,05. Kemampuan menulis teks eksplanasi dengan bahan ajar berbantuan graphic organizer dapat dilihat dari Sig Levene’s test for equality of variance sebesar 0,678 > 0,05. Hal ini berarti bahwa varians data antara bahan ajar biasa dan bahan ajar baru homogen, sehingga penafsiran tabel output independent samples test berpedoman pada equal variances assumed untuk nilai Sig (2-tailed) yaitu sebesar 0,04 < 0,05. Hal tersebut dapat disimpulkan bahwa terdapat perbedaan yang signifikan antara rerata penggunaan bahan ajar biasa dengan bahan ajar baru.

Kata Kunci. Bahan Ajar, Graphic Organizer, Explanatory

ABSTRACT.

This study aims to improve the ability to write explanatory texts and learning motivation of class XI high school students through the development of teaching materials assisted by graphic organizers, This research uses R&D research with the research subjects of class XI SMA at SMAN 1 Karawang, SMAN 4 Karawang, and SMAN 5 Karawang. The results obtained are the development of teaching materials assisted by graphic organizers with a Round Robin Brainstorming learning model that can improve the ability to write explanatory texts. The increase can be seen from Asymp Sig (2-tailed) of 0.000 < 0.05. The ability to write explanatory texts with graphic organizer-assisted teaching materials can be seen from Sig Levene's test for equality of variance of 0.678 > 0.05. This means that the data variance between ordinary teaching materials and new teaching materials is homogeneous, so the interpretation of the independent samples test output table is guided by the equal variances assumed for the Sig (2-tailed) value of 0.04 < 0.05. It can be concluded that there is a significant difference between the average use of ordinary teaching materials and new teaching materials.

Keywords. Teaching Materials, Graphic Organizer, Explanatory