Nigeria is the largest and most densely populated country in Africa and the 7th largest population in the world, with approximately 200 million people on a land mass area of 920,000km. Covid-19 pandemic has affect the lives of persons destroy the global economy and Educational sector at all levels not only in Nigeria, but globally. On March 19, 2020, the Federal Ministry of Education in Nigeria approved the closure of all learning institutions and this closure led to significant disruptions of education system in Nigeria. The closure of schools has affected 36,400,000 primary and secondary school students across Nigeria, this led to 10.2 million out-of-school children in Nigeria. Children whose parents cannot afford remote learning facilities may have to wait for schools to re-open to continue learning, as such, it is uncertain the number of children that will return to school when the pandemic is over. Despite the total number of children out school, Nigerian schools and institutions are overcrowded and over populated especially public school were more than 70-80 students are found in a single class. With this number how social distance can be possible in this condition of overcrowded class room before and during Covid-19.