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Fractions, Grade 4, Clip 4 of 4: Designing a new rod set [video]. Retrieved from https://doi.org/doi:10.7282/T3BV7GF3

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TitleFractions, Grade 4, Clip 4 of 4: Designing a new rod set
PublisherNew Brunswick, NJ: Robert B. Davis Institute for learning, , c1993-09-21
Persistent URLhttps://doi.org/doi:10.7282/T3BV7GF3
DescriptionResearcher Amy Martino posed two related tasks to the students. In this clip, the students work on designing a rod that can be called one half when the blue rod is called one. Erik and Alan discuss how an existing rod cannot be used, and other students suggest configurations of the new rod that could be designed to meet the specifications. Michael, David, Brian F., and Meredith then discuss if it is possible to design a set of rods that contain a rod that can be called one half for any given rod that is called one.
Math ToolCuisenaire rods
Math StrandFractions
Math ProblemFraction as number
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, Indirect reasoning, Inductive reasoning, Reasoning by contradiction, Recursive reasoning
Grade Level4
Student ParticipantsAlan (student), Brian F. (Colts Neck, student), Erik (student), Jessica (student), Kimberly (student), Meredith (student), Sarah (student), Andrew (student), Beth (student), David (student), Graham (student), Jackie (student), Jacquelyn (student), James (student)
MediatorsMaher, Carolyn Alexander (Researcher), Martino, Amy (Researcher), Phillips, Joan (Teacher)
CorporateConover Road (Colts Neck, N.J.), Conover Road (Colts Neck, N.J.)
SettingClassroom
Student GenderMixed
Student EthnicityWhite
Camera ViewsClassroom view, Presentation view, Student 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 Captured1993-09-21
Local IdentifierA40A41A42-FRC-CMPRF-CLIP004
Related Publication
   Type: Dissertation
   Label: Ed.D. dissertation references the video footage that includes Fractions, Grade 4, Clip 4 of 4: Designing a new rod set
   Detail: Dissertation available in digital and paper formats in the Rutgers University Libraries dissertation collection.
   Author: Yankelewitz, Dina (Rutgers Graduate School of Education)

   Name: The Development of mathematical reasoning in elementary school students' exploration of fraction ideas
Related Publication
   Type: Dissertation
   Label: Ed.D. dissertation references the video footage that includes Fractions, Grade 4, Clip 4 of 4: Designing a new rod set
   Date: 2001-05-01
   Detail: Dissertation available in paper format in the Rutgers University Libraries dissertation collection.
   Author: Steencken, Elena Perrone (Rutgers Graduate School of Education)

   Name: Tracing the growth in understanding of fraction ideas : a fourth grade study
Source
   Title: A40, Fractions (student view), grade 4, September 21, 1993, raw footage
   Identifier: A40-19930921-CNCR-SV-CLASS-GR4-FRC-CMPRF-RAW
Source
   Title: A41, Fractions (classroom view), grade 4, September 21, 1993, raw footage
   Identifier: A41-19930921-CNCR-CV-CLASS-GR4-FRC-CMPRF-RAW
Source
   Title: A42, Fractions (presentation view), grade 4, September 21, 1993, raw footage
   Identifier: A42-19930921-CNCR-PV-CLASS-GR4-FRC-CMPRF-