Kate, the Princess of Wales, went back to school Tuesday, joining a group of young students on a field trip. The 43-year-old princess, a mother of three herself, surprised visitors outside the National Portrait Gallery in London when she stepped off a bus with a group of 4 and 5-year-old students from All Souls CE Primary School.

The Princess of Wales introduced a new phase in her early years campaign at the National Portrait Gallery in London

The Princess of Wales was reportedly “animated” and “nurturing” with the little ones during Tuesday’s National Portrait Gallery outing.