Author’s Craft
Text Structure
Central Ideas
Evidence & Claims
Details & Meaning
200

This answer explains how the author introduces the idea that the Purple code was finally being understood.

What is noticing something interesting about the symbols? (B)


200

This answer describes the main purpose of paragraphs 8–9.

What is showing why understanding coded messages was difficult? (B)

200

This answer identifies the central idea of the article.

What is that breaking the Purple code helped the U.S. during WWII?

200

This answer identifies a claim supported by paragraph 7.

What is the U.S. intercepted and broke coded communications?

200

This answer explains why the team celebrated in paragraph 3.

What is they realized a breakthrough had been made?

400

This answer explains why the author describes the celebration in paragraph 3.

What is to show how important the discovery was?


400

This answer explains how paragraph 8 contributes to understanding the Purple code.

What is explaining how the system worked?

400

This answer explains how Grotjan contributed to the war effort.

What is by discovering how the Purple code worked?

400

This answer identifies the claim best supported by evidence in the article.

What is the U.S. used a complex system to intercept communications? (D)

400

This answer explains what made the Purple code difficult to solve.

What is symbols changed meaning as the machine moved?

600

This answer explains why the author includes paragraphs 5–7.


What is to show the importance of understanding secret messages? (C)

600

This answer explains why paragraph 9 focuses on changing symbols.

What is to show why the code was hard to break?

600

This answer explains why the Purple code mattered.

What is it allowed the U.S. to understand secret Japanese messages?

600

This answer explains why choice D is the strongest answer in question 10.

What is because multiple details explain how the system worked?

600

This answer explains the purpose of the cipher machine

What is to encode and decode secret messages?

800

This answer explains how paragraph 11 strengthens the author’s central claim.

What is explaining the value of decoded messages to the U.S. government? (A)

800

This answer explains how paragraphs 8–10 work together

What is to explain the complexity of decoding messages?

800

This answer explains how “Magic” affected World War II.

What is it shortened the war and saved lives?

800

This answer identifies evidence that supports Grotjan’s importance

What is her discovery led to decoding Purple messages?

800

This answer explains the importance of building a matching machine

What is it allowed the U.S. to read Japanese messages?

1000

This answer explains why the author includes Grotjan’s quote in paragraph 12.

What is to contrast Grotjan’s modesty with the impact of her work?

1000

This answer explains why the illustration is placed near paragraphs 8–10.

What is to support the explanation of how messages were coded? (A)

1000

This answer best shows the overall importance of codebreaking.

What is intelligence from codes can change the outcome of wars?

1000

This answer best supports the author’s claim about “Magic.”

What is the government statement saying Magic saved lives?

1000

This answer best reveals the importance of Grotjan’s discovery.

What is “Magic” shortened the war and saved thousands of lives? (D)

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