This study examined ethnic differences in performance among 78 elementary students (22 Black and 56 White students in grades 2 through 6) who participated in a special program for mathematically talented children and 185 non-participants. Results indicate that the program was successful in identifying and helping mathematically talented Black…

Two teachers each taught a 2-week fractions unit to two classes of grades 4-5 students. Each teacher taught one class using direct instruction and the other using a small-group variation of direct instruction. Regression analysis on achievement showed significant aptitude-treatment interaction (ATI) and significant teacher effects. (Author/RL)