Tiles in a public building
What is the same and what is different about these tiling patterns and how do they contribute to the floor as a whole?
Problem
In a public building in England, I found this wonderful tiled floor:
Image
Really interesting I thought, because so much that looked the same at first glance was in fact different.
Look at the three images of the patterns I found along the centre of the tiling (below).
Image
Image
Image
What is the same about them and what is different?
Now look again at the picture of the whole of the main tiled area. It was made from nine complete patterns each like one of the three above.
At the ends there were partial patterns, both like the one in the foreground. The pattern was surrounded by a rectangle of black tiles with some further tiling beyond.
Describe the pattern.
How many of each type of tile are included in the pattern?
How could you check?
Can you reproduce parts of the pattern?
Can you extend it sideways?
Teachers' Resources
Why do this problem?
This problem demonstrates a practical application of symmetry and tessellations. It offers opportunities not only to investigate and analyse the images but to create similar patterns using the same basic ideas.
Possible approach
This document contains the four images which can be copied onto cards for use by groups of learners. First spend some time investigating the basic units for the floor tiling and how they are combined (for example, six different square tiles all linked into cross patterns using the brown and black spacers).
Start by looking at images 2 and 3. What is the same and what is different about them?
Now compare these with image 1. How does this image differ and how is it the same?
Now pose the main problem and ask learners to calculate the numbers of each tile they would need to create the pattern.
At this point learners could create their own tile patterns (groups produce one pattern each), which are copied onto coloured paper. The class could then work collaboratively, using combinations of these tiles to produce a display for a "tiled floor".
Key questions
How is the symmetry of each basic pattern the same and how are they different?
How could you extend the pattern to the sides? Is anything implied by the edges that are visible?