Eighth graders learn what happens when you send a message online, from being split into packets and routed across networks to being reassembled and delivered, and put the steps in order.
Students will be able to…
A message crosses the world in a second, but a lot happens on the way. What are the steps a message takes across the internet?
Project this and put the steps of a message's journey in order — tap each step from sending to delivery.
Tap any phase to open the teacher moves and student actions.
You send a message and it arrives across the world in a second. What actually happens to it along the way?
Students put the data-journey steps in order.
Students trace a real message.
Students map the journey.
Students reflect on how packets work.
Aligned to the CSTA K-12 Computer Science Standards and ISTE Standards for Students.
Model how data is sent across networks in packets.
Explain how routing moves data between networks.
Describe how protocols make the internet work.
Understand how networked systems move information.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students draw the path from sender to receiver, label each step, and show how the message becomes packets and is reassembled, so the journey is concrete. A printable data-travel worksheet is in the Computer Science library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.