So here they are! 15 fun back to school classroom activitiesįirst day of school activities are based upon one goal: to get to know each other. How can you make sure those first-day-of-school emotions are good emotions? I’m betting on creative back-to-school lesson ideas students will find a fun thing to do. There’s one thing we all have in common: the first day of school. Other countries have already begun the new school year, others still have a few weeks to go. Finally! In Belgium, school starts on the 1st of September, after a summer break of two months.