California Assessment of Student Performance and Progress (CAASPP) English Practice Exam

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Which of the following is a signal word in an expository essay to elicit explanation?

In addition
Because
Explain how
However

The correct answer is: Explain how

In an expository essay, signal words play a crucial role in guiding the reader through the explanation of ideas, arguments, or concepts. The phrase "Explain how" serves as a direct prompt that indicates an expectation for a detailed explanation or elaboration on a particular topic. This phrase explicitly calls for clarification, making it a strong signal word that encourages the writer to provide thorough reasoning and in-depth information. On the other hand, phrases like "In addition" and "However" serve different functions, such as connecting ideas or introducing contrasting information, rather than inviting explanation. "Because," while it does offer reasoning or causation, is not as direct in prompting an elaboration as "Explain how" is. Therefore, among the options provided, "Explain how" stands out as the most effective signal for eliciting an explanation within an expository context.