Although the Internet has revolutionized communication and provided a new educational tools for student learning, it has also created risks and raised ethical issues for students of all grades, as it has created many opportunities for illegal, inappropriate and unsafe behavior among all participants. Increasingly, K12 educators are seeing the need to not only utilize the Internet in instruction, but also to teach students the knowledge and critical thinking skills needed to be safe and responsible digital citizens both inside and outside of school. This article reports on the effort of some districts in teaching students how to wisely navigate the Internet by incorporating lessons on Internet safety and security into their existing curricula to prepare students at all grade levels to behave ethically and responsibly online. (Contains 4 online resources.)