DescriptionIn the fourth of five clips from a follow-up interview about his participation in Informal Mathematics Learning (IML), an after-school enrichment program, Ariel, an 8th grade student in an urban middle school, is asked by researcher Cecilia Arias to solve the Geese problem. Ariel completes a table for the values for Y when X is one through four and determines that the general equation is 2X+1. He notes that these values represent a linear equation, which he then represents as a graph.
The wording for the Geese problem as presented to Ariel:
Groups of birds sometimes fly in a V-pattern.
Below you see the three smallest V-patterns.
Each dot represents one bird in the pattern.
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How many geese would be in the 4th V-pattern?
How could you represent the number of geese flying in a V-pattern of any number?
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.
Related Publication Type: Related publication Label: Ed.D. dissertation references the video footage that includes Early algebra, investigating linear functions, series 7 of 7, Ariel's 8th grade interview, Clip 4 of 5: Ariel solving the Geese problem Date: 2009 Author: Baldev, Prashant V. (Rutgers, the State University of New Jersey)
Name: Urban, seventh-grade students building early algegra ideas in an informal after school program Reference: QA.B175 2009
Source Title: B21, Early algebra, investigating linear functions, series 7 of 7, Ariel's 8th grade interview (student view), Grade 8, May 17, 2007, raw footage. Identifier: B21-20070512-PFLD-SV-IFML-GR8-ALG-VAR-RAW