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2 Analytics found

TitleA33, Fraction problems: Sharing and Number Lines (side view), Grade 4, October 29, 1993, raw footage

Date Created1993-10-29

DescriptionIn this raw footage, full-session video, Dr. Davis first introduces Gunnar Gjone as a visiting mathematics educator from Norway. The researcher, Carolyn Maher, begins the session by asking the...

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2 Analytics found

TitleA34, Fraction problems: Sharing and Number Lines (presentation view), Grade 4, October 29, 1993, raw footage

Date Created1993-10-29

DescriptionIn this raw footage, full-session video, Dr. Davis first introduces Gunnar Gjone as a visiting mathematics educator from Norway. The researcher, Carolyn Maher, begins the session by asking the...

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1 Analytic found

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...

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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...

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TitleComparing fractions and evaluating models that represent solutions, Clip 4 of 8: Comparing one half and one third, different number names for the white rod

DescriptionIn clip 4, researcher Carolyn Maher asked the class to determine the number name for the white rod in the first model that had been built, in which the orange and red train was called one. James,...

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1 Analytic found

TitleComparing fractions and evaluating models that represent solutions, Clip 3 of 8: Sharing Alan's candy bar model

DescriptionIn the third clip Alan presented another model to show the difference between one half and one third. He built a model using one dark green rod, two light green rods, three red rods, and six white...

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1 Analytic found

TitleFraction as number, an introduction, Clip 1 of 8: Assigning number names to rods

DescriptionThis video was recorded during the first of many research sessions in a yearlong study conducted in a fourth grade classroom by researcher Carolyn Maher and colleagues. At the start of this session,...

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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...

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TitleThe number line and equivalent fractions, Clip 1 of 1: Multiple representations for equivalent fractions

DescriptionIn this clip researcher Carolyn Maher asked Graham what his argument would be for why two fourths could be labeled one half. He replied that one half plus one half would equal a whole and that two...

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TitleComparing fractions and evaluating models that represent solutions, Clip 7 of 8: Meredith's challenge, does the model work?

DescriptionIn the seventh clip Amy, Jacquelyn, and James built another rod model at the overhead to show their solution to the problem: Which is larger one half or one quarter. Amy explained that they had tried...