This study compares the performances of team-taught, experimental curriculum classes ("experimental group") with the individually-taught traditional curriculum classes ("control group") on 3 sub-tests of the Cooperative English Test. The sub-tests selected were: grammatical usage, punctuation and capitalization, and sentence structure. Pre- and post-tests were administered in all classes. Test results showed the 2 groups were matched on all except the punctuation and capitalization sub-tests in which the experimental group scored significantly higher on both the pre- and post-tests, though both groups substantially increased their scores on these tests. Some tentative conclusions were: (1) the lack of difference between the experimental and control classes in acquisition of skills tested (i.e. in post-test scores) indicates that the experimental teaching method and curriculum were neither better nor worse than the control teaching method and curriculum; and (2) scores on the objective tests were more closely related to assignment of course grades in the control group than in the experimental group. (AF)