Early algebra, investigating linear functions, series 4 of 7, Guess My Rule problems 4 & 5, Clip 4 of 6: Beginning work on Guess My Rule problem 5 [video]. Retrieved from https://doi.org/doi:10.7282/T3CR5RBK
DescriptionIn the fourth of six clips in Series 4 of Exploring Linear Functions, Ariel, a 7th grade students in an after-school enrichment program, is given Guess my Rule problem 5 to consider. He notices different patterns in the table and explains what he sees to teacher/intern Gilberto Ladino. Ariel first points out that successive values for Y increase by three as the X values increase by one. However, he also sees that for certain values of Y there appears to be a cycle of subtracting two from the value of X, then remaining the same and next, adding two. After Ladino asks him to recount the differences in the value of Y beginning when X is zero, Ariel states that the consistent pattern of differences is his rule and, when asked for the value of Y if X is twenty-two, predicts that Y might be forty-two, mirroring his earlier correct prediction of Y when X is twenty for problem 4. (See Early Algebra: Investigating Linear Functions: Clip 2 of Series 4, for Ariel's work on problem 4 when X is twenty.) However, as he extends the table of values all the way to twenty-two for X, he notes that forty-two is incorrect and should be replaced by fifty-eight.
Guess My Rule Problem 5.
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 4 of 7, Guess My Rule problems 4 & 5, Clip 4 of 6: Beginning work on Guess My Rule problem 5 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