Assessment of children's understandings of addition and subtraction requires observing the process and questioning children regarding what they have done

a. True
b. False


ANSWER:
True

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Which of the following characterizes trends in mass media systems over historical time?

a. ?Rare to available b. ?Expensive to more affordable c. ?Fixed to more portable d. ?All of these

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Answer this question in detail: Is an app different from a Web application or an application software program?

What will be an ideal response?

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The federal constitution prohibits the development of national standards

Indicate whether the statement is true or false.

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A researcher decides at a 0.05 level of significance to reject the null hypothesis that the value of a population mean is equal to 12. Which of the following CIs is consistent with this conclusion

A. 95% CI 11, 13 B. 95% CI 8, 12 C. 95% CI 9, 11 D. 95% CI 11.5, 12.5

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