Certainly looks as if you're right - here's a picture of the inauguration of the escoleta in Peguera

I'm not posting this as an answer, because I don't know about the UK school system.

From: http://en.wikipedia.org/wiki/Preschool_education
In British English, nursery school or simply "nursery" or playgroup is the usual term for preschool education, although the term preschool is also commonly used. In the United States preschool and Pre-K are used, while "nursery school" is an older term.

Preschool work is organized within a framework that professional educators create. The framework includes structural (administration, class size, teacher-child ratio, services, etc.), process (quality of classroom environments, teacher-child interactions, etc.), and alignment (standards, curriculum, assessments) components that are associated with each individual unique child that has both social and academic outcomes. At each age band, appropriate curriculum should be applied. For example, it would be normal to teach a child how to count to 10 after 4 years old.[1] Arguably the first pre-school institution was opened in 1816 by Robert Owen in New Lanark, Scotland.