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Fraction problems, Sharing and Number Lines, Clip 2 of 5: Equal shares, 3 candy bars for 25 students
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Fraction problems, Sharing and Number Lines, Clip 2 of 5: Equal shares, 3 candy bars for 25 students [video]. Retrieved from https://doi.org/doi:10.7282/T3CV4HKG

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TitleFraction problems, Sharing and Number Lines, Clip 2 of 5: Equal shares, 3 candy bars for 25 students
PublisherNew Brunswick, NJ: Robert B. Davis Institute for learning, , c1993-11-01
Persistent URLhttps://doi.org/doi:10.7282/T3CV4HKG
DescriptionIn this second of five clips from a single class session, the students consider how 3 candy bars could have been equally distributed among their class of 25. The students had worked on this problem in the previous session when they were asked to share a single candy bar equally among the students in their small group. Since two groups were composed of 8 students while the third was composed of 9 students, their task had been to determine how much more candy each person in the smaller group would receive than those in the larger group. Jessica begins this clip suggesting that the earlier distribution was not equitable thabut t the portions had to be different due to their being an odd number of students in the class. Andrew suggests that the 3 candy bars could be divided into 30 rectangular pieces (10 per candy bar) and shared evenly among all 25 students by having each student get one whole rectangular piece and 1/5 of one of the remaining 5 rectangular pieces.
Problem Statement: How can you share 3 candy bars evenly among the 25 students in your class? How much candy would each student receive?.
Math StrandFractions
Math ProblemComparing fractions, Sharing candy bars
NCTM Grade Range3-5
NCTM Content StandardNumber and operations
NCTM Process StandardProblem solving, Reasoning and proof, Communication, Connections, Representation
Forms of Reasoning, Strategies and HeuristicsDirect reasoning, Referencing a previous problem
Grade Level4
Student ParticipantsAndrew (student), Jessica (student)
MediatorsMaher, Carolyn Alexander (Researcher)
CorporateConover Road (Colts Neck, N.J.)
SettingClassroom
Student GenderMixed
Student EthnicityWhite
Camera ViewsClassroom view, Presentation view
RightsThe video is protected by copyright. It is available for reviewing and use within the Video Mosaic Collaborative (VMC) portal. Please contact the Robert B. Davis Institute for Learning (RBDIL) for further information about the use of this video.
Date Captured1993-11-01
Local IdentifierA29-FRC-CMPRF-CLIP002
Related Publication
   Type: Dissertation
   Label: Ed.D. dissertation references the video footage that includes Fraction problems, Sharing and Number Lines, Clip 2 of 5: Equal shares, 3 candy bars for 25 students
   Date: 2010-05-01
   Detail: Dissertation available in digital format in the Rutgers University Libraries dissertation collection.
   Author: Schmeelk, Suzanna E., 1979- (Rutgers Graduate School of Education)

   Name: Tracing students' growing understanding of rational numbers
   Reference: http://hdl.rutgers.edu/1782.2/rucore10001500001.ETD.000052898
Related Publication
   Type: Dissertation
   Label: Ed.D. dissertation references the video footage that includes Fraction problems, Sharing and Number Lines, Clip 2 of 5: Equal shares, 3 candy bars for 25 students
   Date: 2009-05-01
   Detail: Dissertation available in digital and paper formats in the Rutgers University Libraries dissertation collection.
   Author: Yankelewitz, Dina (Rutgers Graduate School of Education)

   Name: Development of mathematical reasoning in elementary school students' exploration of fraction ideas
Source
   Title: A29, Fraction problems: Sharing and Number Lines (Class View), grade 4, November 1, 1993, raw footage
   Identifier: A29-19931101-CNCR-FV-CLASS-GR4-FRC-CMPRF-RAW
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