Equal opportunities for all students is not a challenge faced in global education, but rather a goal to be achieved.

According to UNESCO, 20% of children worldwide are out of school.

Sub-Saharan Africa has the highest illiteracy rate in the world, with over 50% of the population being illiterate.

Poverty, lack of access to schools, and poor quality of education are all contributing factors to the high dropout rate in many developing countries.

Outdated curriculum is not a challenge related to the quality of education in many developing countries, but rather a problem that is often addressed through curriculum reform.

Lack of funding, geographical barriers, and cultural barriers are all challenges faced by governments in providing equitable access to education.

High cost of education is not a challenge related to the financing of global education, but rather a consequence of the lack of resources and inefficient use of resources.

The main goal of the Education for All (EFA) movement is to provide quality education for all children, regardless of their gender, race, ethnicity, or socioeconomic status.

Increasing the number of schools in developing countries is not a target of the Sustainable Development Goal (SDG) 4 on education, but rather a means to achieve the goal of providing quality education for all.

Lack of political will, lack of funding, and lack of qualified teachers are all challenges faced by the global community in achieving the goals of the Education for All (EFA) movement and the Sustainable Development Goal (SDG) 4 on education.