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.

Kate Middleton made an official visit to the National Portrait Gallery today and arrived in a different kind of style. Instead of the usual convoy of royal vehicles, the Princess instead emerged from a bus alongside school children as they excitedly made their way to view a new project in the gallery.

The Princess of Wales hopped on a bus with schoolchildren for a "magical" excursion to the National Portrait Gallery in London

The Princess of Wales travelled by coach along with an enthusiastic group of five-year-olds as she joined them on a visit to an exhibition in central London. Rather than a formal arrival in a royal car,