This document provides information about a French workshop on math and architecture held from May 18-22, 2015. It then provides details about Notre Dame Cathedral in Paris, describing its construction history and some of its architectural features like rose windows. The second half of the document outlines steps to draw a rosette, which is one of Notre Dame's architectural treasures, providing illustrations and instructions. It encourages practicing the drawing technique or reproducing the design with stained glass materials.

1. Projet Erasmus + Maths is everywhere
French workshop : Maths and architecture
18-22 May 2015
Finlande France Grèce Pologne
République Tchèque Turquie

3. About The cathedral Notre Dame de Paris
Notre Dame de Paris, a masterpiece of Gothic architecture, is the most visited monument of
France.
Located in the historic center of paris, at the top of the Ile de la Cité, its construction began in
the Middle Ages in the thirteenth century and was completed in the fifteenth century.
Badly damaged during the French revolution, the cathedral was the subject of a restoration in
the nineteenth century led by the architect Viollet-le-Duc.
The many visitors admire the stained glass and rose windows, towers, arrow and gargoyles.
The three rosaces are one of Notre Dame’s treasure. Built during the XIII century, they are
an artistic as well as a technical achievement. The largest are 13 meters wide. All around are
flowers, roses with multicolored petals, all the same beautiful with a spiritual meaning : each
one is inique but even more beautiful together like God’s children.

5. To realise your rosette
and coloured pencils or glass-paint
Previous work : visit of Notre Dame , drawing the rosace…
paper sheet
black pencil
eraser rule
set square compass

6. Step 1 Step 2
Step 3 Step 4
Draw a square of 16cm aside
Draw the diagonal of this square
Place the point A to the intercection
Draw the circle, center A, radius 3 cm
Draw the square
which surrounds the circle BCDE

7. Action
and…

8. Step 5
Draw an arc of circle, center B
radius 3 cm.
Do it for C D E
These ars contact two by two
Step6
Draw a big circle, center A
radius AF
It contacts all four arcs
Step 7
Erase the red lines, you made it !!!
and now colored it or
reproduce it with stained glass paint

9. … practice

11. Erasmus à Notre Dame