When students first understand that symbols, such as letters in algebra, can be used to stand for unknown numbers, they have moved to which of the following instructional stages?

a. Concrete
b. Representational
c. Abstract
d. Manipulative


ANSWER: b

Education

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Teachers can group other-than-English-speaking preschoolers together to help each other when they speak the same language at certain times during the school day, for this is good practice

a. True b. False Indicate whether the statement is true or false

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The final authority in educational research, as in all sciences, is

a. observation. b. past knowledge. c. expert judgment. d. theory. e. common sense.

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Examine ethnorelative and describe its three types of responses.

What will be an ideal response?

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Probability sampling requires that every member of the population has:

a. a non-zero probability of being selected. b. the same probability of being selected c. a probability of selection of N/n. d. a .50 probability of being selected.

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