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Inside the Machine G1 to G2 / Week 09 / Crew Quest
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Week 09 · Computers Talk to Each Other

Crew Quest

Crew Quest: Packet relay
// Wi-Fi, the internet and packets
⏱ about 15 min

Crew Quest: Packet relay

It is Saturday at Beacon Station.

Rocket tears a drawing into pieces. "Packets!"

Raven numbers each piece. "What do you notice?"

Nova glows. "Hint: numbers help put them back."

  1. Wi-Fi uses radio waves through the air.
  2. The internet is many computers connected together.
  3. Messages travel in small pieces called packets.
  4. A grown-up keeps the Wi-Fi password private.
◇ FAMILY PACKET RELAY
Draw a simple picture on paper.
Tear it into four or five pieces.
Write a number on the back of each piece.
Mix the pieces up.
Hand them to a family member one at a time.
They put the picture back in order.
Hide one piece. What happens? Send it again!
Safety first
Tear paper by hand. No scissors.
Ask a grown-up before using any paper.
Keep small pieces away from babies and pets.
For a grown-up
Hand over the pieces out of order on purpose.
Ask: how did the numbers help?
Talk about why you keep the Wi-Fi password.
RELAY CHECK
  • Read the question.
  • Tap your answer.
What did the pieces of the drawing stand for?
Why did Raven number each piece?
A piece is missing. What does a computer do?
SentenceTrue or false?
Wi-Fi uses radio waves.?
Packets are small pieces of a message.?
A child should share the Wi-Fi password.?
The internet connects computers around the world.?
WHY THIS EXERCISEPackets carry messages. Passwords stay with a grown-up.
WEEK REVIEW
  • Read the question.
  • Tap your answer.
What connects your home to the internet?
Someone asks for the password. What do you say?
Can you see radio waves?
Draw your relay picture put back together.

What a relay! Next week we open the Fix-It Bay for real.

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