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TitleEarly algebra ideas about binomial expansion, Stephanie's interview one of seven, Clip 3 of 9: Making general sense of a(x + y) = ax + ay.

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...

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TitleEarly algebra ideas about binomial expansion, Stephanie's interview one of seven, Clip 4 of 9: Making general sense of x times x.

DescriptionIn the fourth clip in a series of nine from the first of seven interviews focusing on Early Algebraic Ideas about the binomial expansion, researcher Carolyn Maher asks Stephanie to focus on the...

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TitleEarly algebra ideas about binomial expansion, Stephanie's interview one of seven, Clip 9 of 9: Building a geometric model of (x+y)(x+y)

DescriptionIn the final ninth clip in the series from the first of seven interviews focusing on Early Algebraic Ideas about the binomial expansion, Stephanie is presented with a drawing of a square with sides...

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TitleEarly algebra ideas about binomial expansion, Stephanie's interview seven of seven, Clip 6 of 7: Making sense of the Pascal Triangle addition rule with Unifix cube towers .

DescriptionIn the sixth clip in a series of seven from the seventh of seven interviews, 8th grader Stephanie first revisits her investigation of the number of duplicates that would be produced when building...

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4 Analytics found

TitleB61, Stephanie revisits the five-tall Towers problem (work view), Grade 4, February 6, 1992, raw footage

DescriptionThis one-on-one interview between Researcher Carolyn Maher and Stephanie is a 48-minute discussion that occurred in the 4th grade on the day after Stephanie and her partner, Dana, worked in their...

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TitleB73-Combinatorics-Jeff and Brian-T4T-Work view-Grade 3-19901011-Clip 7 of 7-Raw footage

Date Created1990-10-11

DescriptionThis is the seventh clip in a series of seven of building towers four tall problem using red and blue unifix towers. They had sixteen towers and other students also confirmed the solution was sixteen....

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TitleB72-Combinatorics-Jeff and Brian-T4T-Work view-Grade 3-19901011-Clip 6 of 7-Raw footage

Date Created1990-10-11

DescriptionThis is the sixth clip in a series of seven of building towers four tall problem using red and blue unifix towers. Another student visited Brian and Jeff’s table and tells them that they got sixteen...

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TitleB71-Combinatorics-Jeff and Brian-T4T-Work view-Grade3-19901011-Clip 5 of 7-Raw footage

Date Created1990-10-11

DescriptionThis is the fifth clip in a series of seven of building towers four tall problem using red and blue unifix towers. Jeff shouts to everyone that they have sixteen towers. Brian keeps checking and makes...

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4 Analytics found

TitleB64, Stephanie third of three interview sessions when she used a case-based method for all heights below and including four-tall Towers problems (work view), Grade 4, March 6, 1992, raw footage

Date Created1992-03-06

DescriptionThis one-on-one interview between Researcher Carolyn Maher and Stephanie was an 85-minute discussion that occurred in the 4th grade about two weeks after Stephanie’s second interview with researcher...

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1 Analytic found

TitleB65, Jeff and Michelle classwork of the five-tall Towers problem (work view), Grade 4, Feb 6, 1992, raw footage

Date Created1992-02-06

DescriptionThe fourth grade class was divided into pairs to work on a Towers problem on February 6, 1992. At the beginning of the session, there are two sheets of paper posted on the board with the following...