12

1 Analytic found

TitleB60, Milin and Michael 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...

13

TitleRevisiting construction of large models to compare fractions, Clip 3 of 5: Attempting to reconstruct the big model for comparing two thirds and three fourths

DescriptionIn the third of five clips from this classroom session, David, Erik, and Meredith are building a large model on the floor in an attempt to reconstruct what they had built in a previous session....

14

TitleRevisiting construction of large models to compare fractions, Clip 5 of 5: Finding flaws with the reconstructed big model for comparing two thirds and three fourths

DescriptionIn the fifth of five clips from this classroom session, a visiting researcher asked David, Erik, and Meredith about the large model on the floor, which reflected their attempt to reconstruct the model...

15

TitleBuilding large models to show equivalence, an exploration, Clip 4 of 4: Testing the doubling conjecture

DescriptionIn the fourth clip Erik repeated the explanation of his model to the classroom teacher. His model consisted of a train of three orange and one dark green rod and lined up four blue rods. He lined up...

16

TitleThe infinite number line, Clip 2 of 4: Placing integers on the number line

DescriptionIn the second clip researcher Carolyn Maher stated that the class would be studying pieces of the number line. She referred to the homework from the prior session and stated that the class was...

17

2 Analytics found

TitleComparing fractions and evaluating models that represent solutions, Clip 2 of 8: Comparing one half and one third, Jessica and Erik

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...

18

5 Analytics found

TitleComparing fractions, a whole class debate, Clip 4 of 5: An argument based on a different model

DescriptionIn the fourth clip from this session, Jessica reported that Jackie and Kelly’s argument was different than their original argument in which they had showed the difference between one half and one...

19

2 Analytics found

TitlePUP Math: Gang of four

Date Created2000

DescriptionThis video is part of The Private Universe Project in Mathematics and includes narrative voice-over and interview with researcher, Carolyn Maher interspersed with footage of a group interview with...

20

2 Analytics found

TitleAlan's Infinity

DescriptionIn this clip from 4th grade classroom study, students discuss the placement of numbers between zero and one on a number line. A debate ensues as to how many numbers exist between zero and one. Andrew...

21

1 Analytic found

TitleDiscovering equivalent fractions and introducing fraction notation, Clip 2 of 5: David and Meredith compare one half and two thirds

DescriptionIn the second clip, researcher Carolyn Maher asked the students to build a model to show which is bigger, two thirds or one half, and by how much. The students worked with their partners to solve the...