Three key elements define quality in education according to UNESCO and UNICEF:
1) Quality learners who are healthy, supported by families and communities  
2) Quality learning environments that are safe, protective with adequate facilities
3) Quality processes including well-trained teachers who use child-centered teaching and assessment to reduce disparities
Global concerns regarding these elements include ensuring healthy, nourished students; safe, inclusive schools; literacy and numeracy in curricula; and outcomes such as community participation and lifelong learning. Quality education prepares students for productive lives.