A preschool teacher keeps a clipboard in the block center to jot down short notes about children's social interactions, problem-solving skills, and use of mathematical language (e.g., 'taller,' 'more'). What is the primary purpose of this type of assessment?
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A
To assign a formal grade for their block play.
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B
To gather information to guide future instructional planning.
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C
To compare each child's performance against a national standardized rubric.
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D
To create a summative report card at the end of the semester.