DescriptionIn the second of 8 clips with second grade students, researcher Amy Martino interviews Jeff about how he and his group, which had included Stephanie and Brian, approached the candy heart problems in...
DescriptionIn the third of 8 clips with second grade students, researcher Amy Martino interviews Stephanie about how she and her group, which included Jeff and Brian, had approached the candy hearts problems in...
DescriptionIn the first of five clips from a follow-up interview Ariel, an 8th grade student in an urban middle school, is asked to describe what he remembers about his participation in the after-school...
DescriptionIn the second of six clips from an after-school enrichment session in an urban middle school, Ariel, a 7th grade boy completing a unit about linear functions, continues his work on the Museum problem....
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...
DescriptionThis video comes from an interview conducted by researcher Carolyn Maher with Romina as an 11th grader and participant of a long-term study on development of mathematical thinking and reasoning in...
DescriptionIn the first clip in a series of nine from the fourth of seven interviews in which 8th grader Stephanie explores Early Algebraic Ideas about Binomial Expansion, Stephanie explains the conclusions that...
DescriptionIn the second clip in a series of nine from the fourth of seven interviews in which 8th grader Stephanie explores Early Algebraic Ideas about Binomial Expansion, Stephanie describes to researcher...
DescriptionIn the seventh clip in a series of nine from the first of seven interviews focusing on Early Algebraic Ideas about the binomial expansion, Stephanie uses the distributive property to determine that...
DescriptionIn the third clip in a series of nine from the first of seven interviews focusing on Early Algebraic Ideas about the binomial expansion, Stephanie, an 8th grade student, reviews her conclusions about...