CAI is effective when it provides learning activities that supplement the teacher s work and focus on standards. Practices with mixed results Bilingual education. A major study shows advantages for the late-exit bilingual approach, but many dispute it. The issue depends partially on what skill you re trying to improve, reading skills or science achievement, for example. Some studies show lower quality of instruction for students in the low tracks, but others dispute this.
Smaller classes create fewer problems and more opportunities to give students personal attention.
However, lowering class size by only three or four students rarely produces better achievement. Unless class size is reduced to 12 to 15 students, achievement increases are slight. Research on the topic has not produced reliable evidence on optimum size, but evidence is growing in support of smaller schools. Changes that rarely or never show improved achievement Site-based management. Schools haven t focused on improving achievement, looking instead at peripheral issues.