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Date Created1992-02-06
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DescriptionIn this one-on-one interview with Angela when she was in high school, she discusses how she solved the Towers problem three days earlier when she worked with Magda. The researcher prompts her to start...
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Date Created1990-10-11
DescriptionThis is the first clip of a series of seven of tower problem focusing on 4-tall tower using unifix cubes of two different colors (red and blue). Researcher Martino began by asking what a tower is and...
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Date Created1990-10-11
DescriptionThis is the fourth clip in a series of seven of building towers four tall problem using red and blue unifix towers. The researcher tells them to write on a paper the towers they had created. She tells...
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Date Created1990-10-11
DescriptionThis is the third clip in a series of seven of building towers four tall problem using red and blue unifix towers. They tell the researcher that they have a total of seventeen towers. However, Brian...
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DescriptionIn the final clip in a series of seven from the seventh of seven interviews, 8th grader Stephanie responds to questions from researcher Carolyn Maher about problems that she and her classmates had...
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DescriptionIn the second clip from this session, researcher Carolyn Maher asked the students if they felt confident to justify their solution to the problem: Which is larger, one half or one third, and by how...
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DescriptionIn the third clip, Alan and Erik worked together on the task: Which is larger two thirds or one half and by how much? Alan first built a model using the dark green rod as one, and the two concluded...
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DescriptionIn the first clip in a series of eleven from the sixth of seven interviews, 8th grader Stephanie revisits her earlier exploration of particular algebraic ideas about binomial expansion with...
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DescriptionIn the second clip in a series of eleven from the sixth of seven interviews, 8th grader Stephanie continues her exploration of early algebraic ideas about binomial expansion with researchers Carolyn...
