6

1 Analytic found

TitleBuilding large models to show equivalence, an exploration, Clip 3 of 4: Erik justifies a train model for one third

DescriptionIn the third clip David, Meredith, Erik, and Alan worked to build models on the floor using rods. David built a model to test his conjecture, while Erik continued working on the thirty-six centimeter...

7

1 Analytic found

TitleBuilding large models to show equivalence, a generalization, Clip 3 of 3: Generating multiple models by doubling

DescriptionIn the third clip researcher Carolyn Maher asked David to share the theory that he had formulated with the class. David, with some assistance from Erik, said that Meredith had originally built a model...

8

4 Analytics found

TitleComparing fractions, a whole class debate, Clip 5 of 5: The difference is one sixth

DescriptionIn the fifth and final clip from this session, researcher Carolyn Maher asked Jessica to re-explain her original model. Jessica restated her argument, saying that the model showed that one half was...

9

TitleBuilding large models to show equivalence, a generalization, Clip 2 of 3: Brian's conjecture

DescriptionIn the second clip, researcher Carolyn Maher asked the students what the model that was next in size would look like. Brian said that it would equal the length of twenty-four white rods. The...

10

3 Analytics found

TitleA73, Revisiting construction of large models to compare fractions (classroom view), Grade 4, October 8, 1993, raw footage

DescriptionAmy Martino began the session by asking the students to discuss the task that they had worked on during the previous two sessions: Which is larger, two thirds or three fourths, and by how much?...

11

TitleA96, Building large models to show equivalence, a generalization (side view), Grade 4, October 11, 1993, raw footage

Date Created1993-10-11

DescriptionDuring this session, conducted as a whole class discussion, Researcher Maher revisited the problem that the students had worked on during the previous three sessions: Which is larger, two thirds or...

12

TitleA94, Building large models to show equivalence, a generalization (classroom view), Grade 4, October 11, 1993, raw footage

Date Created1993-10-11

DescriptionDuring this session, conducted as a whole class discussion, Researcher Maher revisited the problem that the students had worked on during the previous three sessions: Which is larger, two thirds or...

13

TitleA95, Building large models to show equivalence, a generalization (presentation view), Grade 4, October 11, 1993, raw footage

Date Created1993-10-11

DescriptionDuring this session, conducted as a whole class discussion, Researcher Maher revisited the problem that the students had worked on during the previous three sessions: Which is larger, two thirds or...

14

TitleA96, Building large models to show equivalence, a generalization (student view), Grade 4, Oct. 11, 1993, raw footage

DescriptionDuring this session, conducted as a whole class discussion, Researcher Carolyn Maher revisited the problem that the students had worked on during the previous three sessions: Which is larger, two...

15

TitleA95, Building large models to show equivalence, a generalization (presentation view), Grade 4, Oct. 11, 1993, raw footage

DescriptionDuring this session, conducted as a whole class discussion, Researcher Carolyn Maher revisited the problem that the students had worked on during the previous three sessions: Which is larger, two...