"π Day" and where did the Number Hunters of the 2nd Kindergarten of Filiatra discover "π"?

 March 14 - World day celebrating the "constant π" and at 2nd Kindergarten of Filiatra the team "Number Hunters" managed to "uncover" the magic number "π", which likes to hide inside circles and spheres!!

Unbelievable joy for the discovery of "π" inside soap bubbles, which are a model of very stable geometry for all mathematicians in the world😀!!!