St Nicholas is in one of the most deprived parts of Lincolnshire. There are high levels of migration - 71 children moved in and out of the school during the last academic year - and for nearly 70% of the children, English is not their first language.
Mrs Booth has already taken a call this morning about three vulnerable children who are missing - they've not been to school for weeks and all have tuberculosis, an infectious lung disease which can be serious if not treated.
"We think the family are in Europe," says Mrs Booth. "We're fairly sure they were fleeing from debt."
After morning break, Mrs Curtis is putting together a grab bag for an eight-year-old pupil whose mum rang the school earlier to let them know they've had to leave their home in a hurry. She is OK and her child is safe, she says, but they have no belongings.