Natural stone flooring company Stonell, part of Tim Rudd\'s ST1 stone tile operation, went back to school when they were invited by Year 3 teacher Elaine Hall to tell the children at Paddock Wood Primary School, near Stonell\'s Kent warehouse and showroom, about stone and rocks.

Stonell have showrooms in London, Cambridge, Oxfordshire, Kent, Cheshire and Staffordshire and two warehouses, in the Midlands and South East. They have a dedicated Architectural Specification Division based in Battersea, specialising in cut-to-size imported material. Liz May is Stonell\'s official RIBA CPD presenter and she joined Anna Vidler, the Kent showroom manager, in front of more than 90 school children aged seven and eight to show them photographs and talk about how each type of stone is formed, quarried, cut into tiles and used in buildings.

The children watched videos and to help explain sedimentary rocks Liz and Anna showed them a bottle of Apple Juice, which had sediment at the bottom of it. Part of the session included a quiz where each child was given two samples of stone which they had to identify from a choice of sandstone, granite, basalt, marble, travertine and limestone. Liz said afterwards: "I also present a RIBA-approved CPD seminar on natural stone flooring and it struck me as slightly worrying that many of these young children knew more about stone than some of the architects I visit."