21
DescriptionIn this clip, the first of five clips from a single class session, the researcher asks the students to review how they were able to show that 1/4 is larger than 1/9 by 5/36. The students had worked...
22
TitleFraction problems, Sharing and Number Lines, Clip 2 of 5: Equal shares, 3 candy bars for 25 students
DescriptionIn this second of five clips from a single class session, the students consider how 3 candy bars could have been equally distributed among their class of 25. The students had worked on this problem...
23
DescriptionIn the fourth of five clips from a single class session, we see two students, Jessica and Andrew, placing unit fractions, ranging from 1/10 to 1/2, on a number line segment with endpoints labelled 0...
24
DescriptionIn the fourth of six clips, the four students develop the structural isomorphism between adding an additional pizza topping choice and the addition rule for successive rows of Pascal’s Triangle and...
25
Date Created1992-02-06
DescriptionIn this one hour and forty minute unedited video, the 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...
26
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...
27
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...
28
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...
29
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....
30
Date Created1992-02-07
DescriptionThis interview with researcher Alston and Milin, with the presence of teacher Mrs. Barnes, occurred on February 7, 1992, the following day of the classroom work with Michael on the five-tall Tower...
