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Review Questions

Review Questions

This activity contains 5 questions.

Make up a word problem for each of the problem structures for addition and subtraction: (a) Join: Change Unknown, (b) Separate: Initial Unknown, (c) Part-Part-Whole: Part Unknown, and (d) Compare: Larger Unknown. Which of the 11 problem types for addition and subtraction are easier for children? Which are more difficult?

To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

What are the benefits of developing a "think-addition" approach for subtraction? How does it compare to a "count what's left" approach?

To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

Make up a word problem for each of the equal-group problem structures for multiplication and division. Use a variety of contexts in your word problems involving discrete objects, continuous quantities, and rates. (a) Equal Groups: Whole Unknown, (b) Equal Groups: Size of Groups Unknown, (c) Equal Groups: Number of Groups Unknown. (Hint: See page 152, "Equal-Group Problems.")

To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

Make up a word problem for each of the comparison problem structures for multiplication and division: (a) Comparison: Product Unknown, (b) Comparison: Set Size Unknown, (c) Comparison: Multiplier Unknown. What is the difference between comparison situations for addition and subtraction and those for multiplication and division?

To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

How should word problems be used for mathematics instruction? What are some cautions to be aware of when using word problems?

To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

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