Description
TitleFraction as number, an introduction, Clip 4 of 8: Establishing a unit for comparing length of rods
PublisherNew Brunswick, NJ: Robert B. Davis Institute for Learning, , c1993-09-20
DescriptionIn the fourth of eight clips from this session, researcher Carolyn Maher mentioned that she had heard a student suggest that the red rod be called one if the dark green rod were called one. She asked the class it that was possible. Erik said it was not possible and Michael agreed with him and explained that the green was bigger than the red and that it would take three of the reds to make one green. The researcher then asked the class what the dark green rod would be called if the red rod was called one. Erik, working with Alan at his desk, proposed that it would be called “three wholes.” Later, when the researcher asked the students to share their solutions in a whole-class discussion, Alan and then Erik used this explanation to justify their solution. David used similar reasoning to justify the solution, saying that if the red rod was called one, “then the green would have to be two more wholes, so that would be three wholes.”
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 Captured1993-09-20
Local IdentifierA74A75A76-FRC-CMPRF-CLIP004
Related Publication
Type: Related publication
Label: Ed.D. dissertation references the video footage that includes Fraction as number, an introduction, Clip 4 of 8: Establishing a unit for comparing length of rods
Date: 2009
Author: Yankelewitz, Dina (Rutgers, the State University of New Jersey)
Name: The development of mathematical reasoning in elementary school students' exploration of fraction ideas
Reference: http://hdl.rutgers.edu/1782.1/rucore10001500001.ETD.000054787
Related Publication
Type: Related publication
Label: Ed.D. dissertation references the video footage that includes Fraction as number, an introduction, Clip 4 of 8: Establishing a unit for comparing length of rods
Date: 2001
Author: Steencken, Elena Perrone (Rutgers, the State University of New Jersey)
Name: Tracing the growth in understanding of fraction ideas
Reference: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000055125
Source
Title: A74, Fraction as number, an introduction (classroom view), Grade 4, September 20, 1993, raw footage.
Identifier: A74-19930920-CNCR-CV-CLASS-GR4-FRC-CMPRF-RAW
Source
Title: A75, Fraction as number, an introduction (side view), Grade 4, September 20, 1993, raw footage.
Identifier: A75-19930920-CNCR-SIV-CLASS-GR4-FRC-CMPRF-RAW
Source
Title: A76, Fraction as number, an introduction (presentation view), Grade 4, September 20, 1993, raw footage.
Identifier: A76-19930920-CNCR-PV-CLASS-GR4-FRC-CMPRF-RAW