The effects of computer-assisted instruction on the achievement, attitudes and retention of fourth grade mathematics students in North Cyprus

► The study explored the effectiveness of CAI on the students' achievement. ► Frizbi Mathematics 4 was effective on multiplication and division but not on fraction. ► Frizbi Mathematics 4 was effective for increasing attitude toward mathematics. ► Frizbi Mathematics 4 was also effective for retention of mathematics skills. ► Educational software must be the part of mathematics curriculum in North Cyprus.