Colorful sticky notes lined a glass wall in a central gathering area at Ida Crown Jewish Academy in Skokie. Each bore the name of an Israeli soldier who was known to a student, their friend or a relative. At Universal School in Bridgeview, Amira Daoud was soliciting ideas from her students at the Islamic school for new decor for the wall outside her classroom. Fall leaves, the middle school students suggested, but the leaves would be in the colors of the Palestinian flag and would include messages to the children of Gaza. Advertisement The walls at each school carry tangible...