All students in England are expected to return to school in September as part of the government plans presented on Thursday. This includes dividing students into separate groups to limit the spread of COVID-19.
Currently, there are only a few students in certain age groups and the children of key workers in school, depending on the area and institution.
Schools are asked to entertain different groups of students, called bubbles, who strive not to mix with students in other bubbles. They can be the size of a class or a year group.
This will make it easier to determine who needs to isolate themselves if there is a positive case, and will keep that number to a minimum, the Ministry of Education said.
Officials acknowledge that younger children will not be able to maintain social distance, and this could be a challenge for everyone if they use common facilities such as dining rooms, toilets and playgrounds.
The seating arrangement should be changed so that all students look forward and not face to face.
Outside the classroom
Meetings with more than one group of students should be avoided. The use of staff rooms must be minimized.
Breathtaking start times
Schools should consider asking students in different "bubbles" to keep separate start and end times. However, break times and free time can be reduced to ensure that lesson time is not reduced.
If there is a positive case
Small groups of students and staff may need to isolate themselves for up to 14 days. If two or more cases occur within two weeks, a larger number of students may need to stay at home.
Fines for non-participation
"If there was no good reason for absenteeism, we would consider the fact that we would fine families," Education Minister Gavin Williamson said on Monday.
National Education Union response
"The practical difficulties in arranging this separation of annual group bubbles are immense and will not be possible in many schools," said Kevin Courtney, general secretary of the NEU.