Revisiting construction of large models to compare fractions, Clip 5 of 5: Finding flaws with the reconstructed big model for comparing two thirds and three fourths
Revisiting construction of large models to compare fractions, Clip 5 of 5: Finding flaws with the reconstructed big model for comparing two thirds and three fourths [video]. Retrieved from https://doi.org/doi:10.7282/T3Z60MNT
TitleRevisiting construction of large models to compare fractions, Clip 5 of 5: Finding flaws with the reconstructed big model for comparing two thirds and three fourths
PublisherNew Brunswick, NJ: Robert B. Davis Institute for Learning, , c1993-10-08
DescriptionIn the fifth of five clips from this classroom session, a visiting researcher asked David, Erik, and Meredith about the large model on the floor, which reflected their attempt to reconstruct the model that they had built in the previous day's session. The researcher observed that there were thirteen purple rods, which Erik then counted and confirmed, saying that they had made a mistake when they re-built the model. Meredith questions why they need twelfths when the problem asked about two thirds and three fourths. David and Erik begin to explain that the point of the big model was to show how doubling the length of a smaller model changed the number name given to the red rod but did not change the answer to the problem. But this notion could not be elaborated on because time had run out and they had to put away the rods.
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 Captured1993-10-08
Local IdentifierA73-FRC-CMPRF-CLIP005
Related Publication Type: Related publication Label: Ed.D. dissertation references the video footage that includes Revisiting construction of large models to compare fractions, Clip 5 of 5: Finding flaws with the reconstructed big model for comparing two thirds and three fourths Date: 2009 Author: Yankelewitz, Dina (Rutgers, the State University of New Jersey)
Related Publication Type: Related publication Label: Ed.D. dissertation references the video footage that includes Revisiting construction of large models to compare fractions, Clip 5 of 5: Finding flaws with the reconstructed big model for comparing two thirds and three fourths Date: 2008 Author: Reynolds, Suzanne Loveridge (Rutgers, the State University of New Jersey)
Name: A study of fourth-grade students' explorations into comparing fractions Reference: QA.R465 2005
Source Title: A73, Revisiting construction of large models to compare fractions (classroom view), Grade 4, October 8, 1993, raw footage. Identifier: A73-19931008-CNCR-FV-CLASS-GR4-FRC-CMPRF-RAW