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Early algebra ideas involving one variable, Clip 5 of 11: Solving equation four [video]. Retrieved from https://doi.org/doi:10.7282/T3FT8JZM

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TitleEarly algebra ideas involving one variable, Clip 5 of 11: Solving equation four
PublisherNew Brunswick, NJ: Robert B. Davis Institute for Learning, , c1999-09-30
Persistent URLhttps://doi.org/doi:10.7282/T3FT8JZM
DescriptionIn the fifth of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, the students work together to find the truth set for equation four on the worksheet recorded below. Milin suggests 2, substitutes it into the equation and evaluates the result. Davis encourages the class to do the calculation and, when they agree that the resulting equation is true, records 2 as one value in the truth set. Researchers Carolyn Maher, Alice Alston, Amy Martino and Tom Purdy, along with Marcia O’Brien, district supervisor, and Michael Poe, teacher, are observing.

Equation Four as presented to the students:
4. (□ x □) - (15 x □) + 26 = 0
Math ToolColor markers, Worksheet with problem statements
Math StrandAlgebra
Math ProblemOpen sentence in one variable
NCTM Grade Range6-8
NCTM Content StandardAlgebra
NCTM Process StandardProblem solving, Reasoning and proof, Communication, Connections, Representation
Forms of Reasoning, Strategies and HeuristicsDirect reasoning, Substituting numbers for variables, Guessing and checking
Grade Level6
Student ParticipantsBrian (Kenilworth, student), Michael A. (Kenilworth, student), Jeff (student), Robert (student), Matt (student), Romina (student), Stephanie (student), Amy-Lynn (student), Michelle I. (student), Michelle R. (student), Ankur (student), Milin (student)
MediatorsDavis, Robert B. (Robert Benjamin) (Researcher), Maher, Carolyn Alexander (Researcher), Alston, Alice S. (Researcher), Martino, Amy Marie (Researcher), Purdy, Thomas LaMonde (Researcher), O'Brien, Marcia Joan (Teacher), Poe, Michael (Teacher)
CorporateHarding Elementary School (Kenilworth, N.J.)
SettingClassroom
Student GenderMixed
Student EthnicityMixed
Camera ViewsTeacher view, Side 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 Captured1999-09-30
Local IdentifierA54A55-ALG-PIB-CLIP005
Related Publication
   Type: Related publication
   Label: Ed.D. dissertation references the video footage that includes Early algebra ideas involving one variable, Clip 5 of 11: Solving equation four
   Date: 2009
   Author: Spang, Kathleen E. (Rutgers Graduate School of Education)

   Name: Teaching algebra ideas to elementary school children : Robert B. Davis' introduction to early algebra
   Reference: QA.S735 2009
Source
   Title: A54, Early algebra ideas involving one variable (teacher view), Grade 6, September 30, 1993, raw footage.
   Identifier: A54-19930930-KNWH-TV-CLASS-GR6-ALG-PIB-RAW