Picking up broken glass?

I was doing dishes & after washing my glass skillet lid it somehow slid off the dish drainer on to the12x12grouted tile floor . There are small particles of glass EveryWhere. What ‘s the best way to pick/sweeep the glass up ?How far could the glass have splattered? How do I make sure that I didn’t miss any? Please only sincere answers – I have small children that I am concerned about .