How QR Codes Were Invented — Questions and answers

Read the full story

What made Lila curious and want to check her Invention Encyclopedia?

Choices

  1. She wanted to know about glowing squids.
  2. She wondered how people keep track of sea creatures. ✓
  3. She was bored of the documentary.
  4. She wanted to play a game with Leandro.

Answer: She wondered how people keep track of sea creatures.

From page 2

What was a problem with barcodes that Hara and his team wanted to solve?

Choices

  1. They were too fast and held too much information.
  2. They were slow, easily damaged, and held little information. ✓
  3. They were very clean and never got dirty.
  4. They were only used for toys, not parts.

Answer: They were slow, easily damaged, and held little information.

From page 5

What is one reason QR codes are shaped like squares?

Choices

  1. They look pretty as squares.
  2. They fit better on small items.
  3. The square shape allows the scanner to read them quickly from any direction. ✓
  4. Squares are easier to draw than circles.

Answer: The square shape allows the scanner to read them quickly from any direction.

From page 7

What did Lila tell Leandro that QR codes could be used for?

Choices

  1. To play video games.
  2. To help track sea creatures.
  3. To pay for things at the store. ✓
  4. To make documents glow.

Answer: To pay for things at the store.

From page 10