Computer Network Sizes: A Visual Guide

Section role: supports the 'Small, Medium, and Mega: Network Sizes' section while the teacher defines and illustrates the differences between PAN, LAN, and WAN using relatable analogies for 3rd graders. Slides: (1) Title — 'Network Sizes: Connecting Near and Far'; (2) What is a Network? — bullet: devices talking to each other to share things (recap from Section 1); (3) Personal Area Network (PAN) — bullet: definition as a small network for one person, example: connecting headphones to a tablet, visual: a person surrounded by personal devices; (4) Local Area Network (LAN) — bullet: definition as a network in one building, example: computers in a classroom sharing a printer, visual: a school building with computers inside; (5) Wide Area Network (WAN) — bullet: definition as a network connecting cities or countries, example: the Internet as the biggest WAN, visual: a globe with lines connecting continents; (6) PAN, LAN, WAN: Key Differences — bullet: review of acronyms (Personal, Local, Wide) and their associated scales. Closing slide: 'Which network connects devices in our classroom?' — this hands control back to the teacher for the comprehension check and sets up the 'Network Detective' activity in Section 3.


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