![]() ![]() If IP addresses can change, is there a better way for everyone to know everyone else's IP address?.Why do you think I was switching IP addresses?.Prompt: Discuss with your classmates the following prompts: Repeat the above two steps as many times as you can, as you circulate the room.Give that person a new IP address slip (or a re-used IP address). ![]() Approach a student and silently take their IP address slip away from them.You may talk / share information with only ONE classmate at a timeĬirculate: As students are working, circulate quietly through the room.You may share information with classmates.If students start running away from you that's a good sign they've seen what makes this activity tricky!ĭo This: Your goal is to create a list in your journals of every one of your classmates IP addresses. Keep it Short: This activity can be done very quickly, typically in about 3 minutes, before students start to see the core challenge. With devices joining the internet all the time it's impossible for each device to keep track of each other device's IP address. Showing the Need for DNS: This quick unplugged activity helps students understand why the DNS exists in the first place. You could also use handwritten notes or any other medium that's convenient for you and your students. You cut these out ahead of time from IP Address Labels - Teacher Resource. Layers of the Internet - Activity Guideĭistribute: As students enter class, hand each of them a single IP address.The Internet: IP Addresses and DNS - Video (timestamped to the second half).Students will begin thinking about some of the dilemmas caused by these conflicts, which they will explore further after this lesson. However, actions taken by governments and organizations challenge some of these design philosophies and may hinder the ability of the World Wide Web to be truly worldwide. This lesson is designed to wrap up the series on how the Internet works and highlight the main design philosophies of openness, reliability, and scalability. Explain how different layers of protocols on the Internet build upon and rely on one another.Describe how the Domain Name System helps the Internet scale by allowing devices to find the IP addresses associated with a domain name.Describe how HTTP is used for sharing the files and pages that make up the World Wide Web.The lesson concludes with a review of how the different layers of the Internet work. Students then watch videos explaining how both DNS and HTTP work, taking notes and using a provided activity guide. The lesson then dives into the core of the unit which is "What happens when I type an address into my browser?" Students will complete a brief activity to explore how the DNS works. The lesson begins with a review of the layers students have already learned, namely the physical Internet, IP, and TCP / UDP. Students conclude their study of the layers of the Internet by learning about two top-level protocols, HTTP and DNS. ![]()
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