DescriptionResearcher Maher began the session by discussing the relative size of fractions within different models. Using the analogy of two different sized dioramas of children in a fishing boat, the class agreed that the proportions within each model need to be the same, but that the parts of the models cannot be interchanged. Then, the class worked in partners on the problem: Which is larger, one half or two thirds, and by how much? Meredith, among others, used the fact that rod lengths can be assigned two number names that are equivalent as they built models and justified their solutions, and Researcher Maher brought this to the fore during a class discussion. After the class discussed the idea that one sixth was equivalent to two twelfths, Researcher Maher summarized their ideas using formal fraction notation, and the class agreed that these ideas were true.
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 Captured1993-10-04
Local IdentifierA87-19931004-CNCR-PV-CLASS-GR4-FRC-CMPRF-RAW
Related Publication Type: Excerpt or clip creation Label: Video clips created from video footage A87, Discovering equivalent fractions and introducing fraction notation (presentation view), Grade 4, October 4, 1993, raw footage Name: Discovering equivalent fractions and introducing fraction notation, Clip 1 of 5: Boats and fish, a conversation about building models
Related Publication Type: Related publication Label: Ed.D. dissertation references the video footage that includes A87, Discovering equivalent fractions and introducing fraction notation (presentation view), Grade 4, October 4, 1993, raw footage 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 A87, Discovering equivalent fractions and introducing fraction notation (presentation view), Grade 4, October 4, 1993, raw footage Date: 2001 Author: Steencken, Elena (Rutgers, the State University of New Jersey)