across oecd countries on average neither the proportion of students scoring below level nor the proportion of top performers show a statistically significant change between and that would suggest progress and an improvement in student outcomes figure it is mainly through education that individuals acquire the skills to overcome personal circumstances that could hinder their success and face the challenges of our globalised world in which technology is changing how people work communicate and socialise only education systems capable of adapting to the rapidly changing environment can empower their citizens with the right mix of skills to allow them to lead satisfying professional and personal lives and at an aggregate level lead to inclusive and sustainable economic growth the adaptability of education systems and their ability to evolve ultimately depends on enabling teachers to transform what and how students learn