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18
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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...
19
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...
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TitleBuilding large models to show equivalence, a generalization, Clip 1 of 3: Finding the smallest model
DescriptionAt the start of the session, researcher Carolyn Maher asked the students if they remember working on comparing two thirds and three quarters. She mentioned that she had seen students build more than...
21
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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?...
22
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...
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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...
24
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...
25
Analytic icon 1 Analytic found
TitleA93, Building large models to show equivalence, an exploration (side view), Grade 4, October 7, 1993, raw footage
Date Created1993-10-07
DescriptionResearcher Maher began the session by discussing the ideas that the students had worked on during the previous session. Then, the students worked in groups and revisited the task: Which is larger, one...
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TitleA92, Building large models to show equivalence, an exploration (classroom view), Grade 4, October 7, 1993, raw footage
Date Created1993-10-07
DescriptionResearcher Maher began the session by discussing the ideas that the students had worked on during the previous session. Then, the students worked in groups and revisited the task: Which is larger, one...
27
TitleIntroducing Fraction Equivalence and an Exploration of Fraction Comparison, Clip 1 of 4: Equivalent fractions, a debate
Date Created1993
DescriptionIn this clip, researcher Amy Martino leads a class discussion that centers on the task: If I call the orange rod one, what number name would I give two whites? Some students suggest the number name...