Bring your own device (BYOD) means a lot of different things in the context of an educational setting. When an educator says that his or her district has a BYOD program, it's important to clarify the type of program that's in place. Is its scope limited to notebook computers? Or does it include other types of mobile computing devices? Such ­differences can have a huge impact on how school leaders ­approach ­policies, classroom ­management and curriculum design. In my view, the districts that are allowing web-enabled phones and game consoles are in the vanguard of the BYOD movement. That's b...