Monday through Friday: 10 am to 3 pm
For School Entry Level (5-year-olds) and Grade 2 through 12: Thursday, August 20th, 2026
For Preschool and first Grade: Monday, August 24th, 2026
Montag bis Freitag: 10:00 bis 15:00 Uhr
Für die Schuleingangsstufe (5-Jährige) sowie die Klassen 2 bis 12: Donnerstag, 20. August 2026
Für den Kindergarten und die erste Klasse: Montag, 24. August 2026
Pi Day
The number Pi = 3.14159 has special significance in mathematics and any birthday date can be found somewhere in this number. Following the American tradition, Pi Day takes place annually on March 14th (3/14). Students are invited to work on mathematical problems related to the number Pi.
For over 10 years at GISW, grades 5 and 6, 7 and 8, 9 and 10, 11 and 12 have competed as teams to solve mathematical problems and illustrate their ways for solutions. A total of 270 students are active and engaged with mathematics on this day. The results of the best teams are evaluated by committed teachers of the math department and the winner of each level ofcompetition then traditionally receives an edible pie.