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Early algebra, investigating linear functions, series 4 of 7, Guess My Rule problems 4 & 5, Clip 2 of 6: Finding the Y-value for twenty for problem 4 [video]. Retrieved from https://doi.org/doi:10.7282/T3N877R5

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TitleEarly algebra, investigating linear functions, series 4 of 7, Guess My Rule problems 4 & 5, Clip 2 of 6: Finding the Y-value for twenty for problem 4
PublisherNew Brunswick, NJ: Robert B. Davis Institute for Learning, 2005-11-03, c2005-11-03
Persistent URLhttps://doi.org/doi:10.7282/T3N877R5
DescriptionIn the second of six clips in Series 4 of Exploring Linear Functions, Ariel, a 7th grade student in an after-school enrichment program, defends his approach for finding values of Y for problem 4. When teacher/intern Gilberto Ladino asks for the value of Y when X is twenty, Ariel says thirty-eight. Researcher Keith Weber questions this result and Ariel explains his reasoning using a proportional argument. When Ladino asks him to check his solution by extending the table, Ariel modifies his strategy in order to explain the resulting Y-value of thirty-nine.
Guess My Rule Problem 4.
X____ Y_
0 -1
1 1
2 3
3 5
4 7
5 9
Math ToolColor markers
Math StrandAlgebra
Math ProblemGuess my rule
NCTM Grade Range6-8
NCTM Content StandardAlgebra
NCTM Process StandardProblem solving, Reasoning and proof, Communication, Connections, Representation
Forms of Reasoning, Strategies and HeuristicsDirect reasoning, Recursive reasoning, Recognizing a pattern, Proportional reasoning
Grade Level7
Student ParticipantsAriel (student)
MediatorsWeber, Keith (Researcher), Radu, Iuliana (Researcher), Ladino, Gilberto (Teacher)
CorporateFrank J. Hubbard Middle School (Plainfield, N.J.)
SettingInformal learning
Student GenderMale
Student EthnicityHispanic
Camera ViewsTeacher 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 Captured2005-11-03
Local IdentifierB28B29-ALG-VAR-CLIP002
Related Publication
   Type: Related publication
   Label: Ed.D. dissertation references the video footage that includes Early algebra, investigating linear functions, series 4 of 7, Guess My Rule problems 4 & 5, Clip 2 of 6: Finding the Y-value for twenty for problem 4
   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: B28, Early algebra, investigating linear functions, Guess My Rule introduction group 2 (student view), Grade 7, November 3, 2005, raw footage.
   Identifier: B28-20051103-PFLD-SV-IFML-GR7-ALG-VAR-RAW
Source
   Title: B29, Early algebra, investigating linear functions, Guess My Rule introduction group 2 (teacher view), Grade 7, November 3, 2005, raw footage.
   Identifier: B29-20051103-PFLD-TV-IFML-GR7-ALG-VAR-RAW