This study utilized the Six primary traits of evaluation factors of an argumentative writing(content, organization, voice, sentence fluence, word choice, convention) to compare the traits of argumentative writing development in two six-grade students(higher and lower standards). For such, the origin and factors of the six
primary traits of evaluation factors of an argumentative were examined. Then, the essays of the two students in first-grade, six-grade were analyzed and compared. As a result, the following facts were identified. First, the student with higher standard proposes supporting sentences for each statement, however, the student with lower
standard dosen’t propose supporting sentence for each statement. Second, the writing of the student with higher standard has solid organization with abundant vocabulary, however, the writing of the student with lower standard both has poor organization and vocabulary. Third, the student with higher standard used correct grammar and sentence symbols most of the time but the student with lower standard lacked in such areas.