Grammar is one of important aspects of a language that makes the language learnable and teachable. The teaching of grammar, especially foreign language grammar, needs a serious attention from the teachers and related institutions. Specifically in universities, the teaching of English grammar should provide the students with theoretical concepts of the English grammar and opportunity to use the concepts in their communication. The grammar teaching should also offers suitable assignments by which they may test their language hypothesis. To establish and develop the students’ knowledge about the English grammar, the use of students’ mother tongue as an instructional language in the classroom was considered effective. However, an experimental r...