/coloriage%20de%20graphes%20et%20nombres

Math for seven-year-olds: graph coloring, chromatic numbers, and Eulerian paths and circuits
▻http://jdh.hamkins.org/math-for-seven-year-olds-graph-coloring-chromatic-numbers-eulerian-path #math #education #kids

http://jdh.hamkins.org/files/2014/05/Image-13.jpg

With printable booklet !