The eleventh century restored Anglo-Saxon tower with a helm roof at St Mary’s Church, Sompting is unique in England. It is a roof having four faces, each of which is steeply pitched so that they form a spire, while the four ridges rise to the point of a spire from a base of four gables.
Key Stage 4 Mathematics: The helm is an interesting shape mathematically. Each rectangular side of tower is topped with an equilateral triangular gable. Each of the two upper sides of the triangles adjoins the two lower sides of a rhombus. A rhombus is a parallelogram with equal sides.
A net is a 2D representation of a 3D shape which, when folded, forms the 3D shape that it purports to represent. Nets are introduced to children at Key Stage 1. This complex exercise is suitable for able students at Key Stage 4, or IB. It offers a unique insight into the challenges confronting a Norman or Anglo-Saxon builder in the eleventh century.
Students will be guided through a precise series of instructions to produce a net, which should then be decorated, folded and glued together.
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