The effectiveness of grade point average (GPA) as a predictor of elementary school teaching performance during student teaching and after graduation was examined. Measures of student achievement, attitudes, and teaching ability, as reported by student teaching supervisors and by school principals where the graduates are employed, were compared for two groups of students: (1) those with grade point averages above 3.5 (A=5.0), and (2) those with GPA below 3.5. Students below 3.5 were found to be seriously deficient in basic subjects. Students with higher GPA were rated higher on measures of attitudes, teaching performance, classroom management, and overall teaching ability. The authors recommend that the standard requiring junior year education majors to maintain a GPA of 3.5 should be continued as a method of screening potential teachers. (Author/MV)