Here’s a great example of an effective lesson. This middle school teacher took to the Internet to teach her students about online security and privacy. This photo has been shared tens of thousands of times and received hundreds of thousands of likes on Facebook. The lesson in Internet safety is especially relevant right now as there are 5.6 million users in violation of Facebook’s minimum age of 13, and kids are becoming more and more active on internet-connected devices from phones to tablets to computers.