21
Date Created1990-10-11
DescriptionIn this clip, Stephanie and Dana continue to work on the Towers Problem, introduced in the first clip in this series. Stephanie tells another group of children to double-check their towers for...
22
Date Created1990-10-11
DescriptionIn this clip, Stephanie and Dana work on recording their solution to the Towers Problem, introduced in the first clip in this series. As Dana finishes her recording her towers solution individually,...
23
Date Created1996-03-13
DescriptionIn the fifth clip in a series of ten from the fifth of seven interviews, 8th grader Stephanie continues her exploration of Early Algebraic Ideas about Binomial Expansion. Referring to the...
24
TitleEarly algebra ideas involving two variables: Romina and Brian work on Guess My Rule problems 3 and 4
Date Created1993-10-01
DescriptionThis video comes from a 6th grade class session in which the researcher, Robert B. Davis, introduces algebraic equations with two variables, using a square “box” and a “triangle” as symbols to...
25
Date Created1990-10-11
DescriptionHaving worked in the previous two clips of this series to create towers three cubes high selecting from two colors, researcher Alice Alston facilitates a group discussion about the students’...
26
Date Created1990-10-11
DescriptionIn this clip, researcher Alice Alston leads a discussion about how many towers could be built three cubes high when selecting from two colors. In the previous clip, the students had discussed their...
27
Date Created2006-05-12
DescriptionResearchers Carolyn Maher and Liz Uptegrove conduct a group interview with Romina, Angela and Magda as young professionals who have been participants in a long-term study on development of...
28
Date Created1999-05-18
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...
29
Date Created2002-03-11
DescriptionResearchers Carolyn Maher and John Francisco conduct a group interview with Romina and Jeff as second-year college students who have been participants in a long-term study on development of...
30
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...
