I am very thank for your corrections I m Matt Frattali I teach technology at the Lab School Every year for one day we study Wikipedia We talk about the accuracy of importance of Wikipedia We start out in the sandbox to learn the basics of editing I like students to edit the official Lab School page since authenticity is important This year to prevent vandalism students were instructed to make a single edit to change the word learning difficulty to learning difference There were thirty students in the room the vast majority followed directions and clearly one or two did not and I m very sorry for that We all used the same login Lswuser since it s impossible to create 30 accounts from one IP simultaneously Thanks again for making the corrections