The Network at Home: Router and Wi-Fi

1. What your child learns and why

How the devices at home reach the internet. The router reads the address of every message and sends it where it needs to go. Wi-Fi is the wireless road to the router (radio waves); a cable does the same job. Your child tells the home network apart from the internet — and learns that the Wi-Fi code is a secret, like a house key. What is invisible becomes something you can draw and explain.

2. Three questions for dinner

• “Where is our router? How many devices do you think are connected to it?”
• “If the internet stops, what at home still works?” (The printer, if it is on the same network — let your child discover why.)
• “Who in our family is like the router — who do we turn to so that news reaches everyone?”

3. 10 minutes together, no screen — “Draw the network at home”

1. Walk through the rooms and only look. Do not touch cables, open the router or change settings.
2. Your child draws the router in the middle and, around it, the devices that go online. Dashed line = Wi-Fi, solid = cable.
3. Add an “internet” line to the edge of the sheet. Ask: “What stops if it breaks? What still works?” At the end, count the devices.

4. What success looks like

• Your child draws the network and says in words what a router does.
• Tells “no Wi-Fi” apart from “no internet”.
• Remembers without prompting that the code, the network name and addresses are not written on paper and not shared.

5. Common difficulties

• “Wi-Fi and the internet are the same thing” → “Wi-Fi is the road to the router at home. The internet is the network beyond the router.”
• “The router makes the internet” → it only passes things on; the internet comes from the provider over a line.

Say: “I don't know — let's find out together.” Avoid: “That's for grown-ups.”

6. Safety

Do not write down or photograph the Wi-Fi code, the network name, addresses or the sticker on the router — and never tell them to strangers. Router settings (the access code, the protection mode) are for adults only: the newest mode is WPA3 according to the Wi-Fi Alliance, and an open network has no protection; which modes your router supports is in its manual. If something frightens your child, they should tell a grown-up they trust.

7. Where to go next

Next lesson: DB-VK-13 “Build a Paper Computer and Explain It” · Back: DB-VK-11 “The Operating System”

You don't need to know the answer. Say: “Let's find out together.”