Describes how, through the use of two diagrams, one can teach the English present-perfect to Iranian students. One diagram consists of a time-line divided into "past" and "non-past." The other uses an oval to indicate a time-span including the present. Both facilitate comprehension of present-perfect meaning. (PJM)

A study analyzed the ability of 31 advanced students of English as a Second Language (ESL) to monitor their own use of article and verb errors in their compositions. Subjects were 31 foreign graduate students enrolled in an advanced composition course at Iowa State University. The two categories of grammatical errors were monitored in three…