The purposes of this study were to analyze the grammar of high school textbooks and in the
CSAT (College Scholastic Aptitude Test) to determine the usefulness of the textbook for the
CSAT, and to identify the grammar in the CSAT that does not match the textbook grammar
according to the national curriculum. The grammar in five textbooks that have been used for
three years in a high school and the grammar questions in the 19-year CSAT were analyzed
and compared for these purposes. The results were as follows. First, school textbooks include
various grammar items, but the emphasis differs among them. Five textbooks presented 70
grammar items in 169 instances. Some grammar items appeared just once over three years,
while others appeared in the textbooks repeatedly. Second, 58 grammar items appeared 152
times in the CSAT. As in the textbooks, the importance of each grammar item was different
and different from that of the textbooks. Some items were presented just once, but others were
included 16 times in the 19-year CSAT. Third, the textbooks dealt with most of the grammar
items included in the CSAT; however, it is doubtful whether the textbooks can help students
in each grade to prepare for the state-led test or private mock exams in a timely fashion. The
grammar items that most often appeared in the textbooks were conjunctions and relative
pronouns, which were each offered 12 times. Thus, the grammar items emphasized differed
between the textbooks and the CSAT.