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3 Analytics found

TitleFractions, Grade 4, Clip 1 of 4: David's upper and lower bound argument

DescriptionDuring this clip, the students discuss a task that had been posed by Erik: If I call the blue rod one, what rod will I call one half? A lively discussion centering on the definition of one half...

2

1 Analytic found

TitleFraction problems, Sharing and number lines, Clip 3 of 3: Sharing strategies

DescriptionResearcher Carolyn Maher leads a whole class discussion after the students' exploration of the problem: Which is larger, one fourth or one ninth, and by how much? Several students described their...

3

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...

4

3 Analytics found

TitleContinuing to explore fraction comparisons, Clip 4 of 7: Michael and Brian find four models to compare one half and three fourths

DescriptionIn the fourth clip Michael and Brian worked together to compare one half and three fourths. Michael built a model of an orange and red train, two dark green rods, and four light green rods. He then...

5

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...

6

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...

7

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...

8

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...

9

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...

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?...