Education is considered to be the most effective tool that people can use to lift themselves out of poor socioeconomic backgrounds and lead to professional success, which in turn improves society. Since an education system often supports individuals with a higher socioeconomic status (SES), it may not resolve the issue of socioeconomic background…

This paper investigates the sustainability and the impact of offering the dynamic approach (DA) to schools for more than 1 year in improving student achievement in mathematics (quality) and reducing the impact of socioeconomic status (SES) on achievement (equity). A sample of 56 schools in socially disadvantaged areas in three countries (i.e.,…