... this material so they understand clearly about the material, the teaching context and the learners. Their opinion and their evaluation, therefore, are critical to the improvement of the material ... be evaluated, the objectives and requirements of the materials, and the judgments of the value of the materials being evaluated in relation to the objectives and the requirements determined.1.2.2. ... in- house material. 13. Significance of the thesisThe findings of the thesis will be useful not only to the researcher, and the course book designers but also to the teaching staff and the second...