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Early algebra ideas involving one variable, Clip 7 of 11: Beginning to recognize "secrets"
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Early algebra ideas involving one variable, Clip 7 of 11: Beginning to recognize "secrets" [video]. Retrieved from https://doi.org/doi:10.7282/T3V123P5

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TitleEarly algebra ideas involving one variable, Clip 7 of 11: Beginning to recognize "secrets"
PublisherNew Brunswick, NJ: Robert B. Davis Institute for Learning, , c1999-09-30
Persistent URLhttps://doi.org/doi:10.7282/T3V123P5
DescriptionIn the seventh of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, the students look for patterns for finding a solution to the problems. As solutions are identified for each of the equations below, students posit that they “know why.” A discussion of the appropriateness of telling or keeping a "secret” to them follows. Students then whisper their reasoning to Davis. Jeff, Brian, Bobby, Ankur, Matt, Milin, and Romina are featured during the activity. Researchers Carolyn Maher, Alice Alston, Amy Martino and Tom Purdy, along with Marcia O’Brien, district supervisor, and Michael Poe, teacher, are observing.
Original equations completed during this clip:
2. (□ x □) - (16 x □) + 55 = 0
4. (□ x □) - (15 x □) + 26 = 0
5. (□ x □) - (6 x □) + 5 = 0
7. (□ x □) - (12 x □) + 20 = 0
8. (□ x □) - (12 x □) + 32 = 0
Additional Equations as presented to the students:
(□ x □) - (102 x □) + 200 = 0
(□ x □) - (14 x □) + 33 = 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, Generalizing
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-CLIP007
Related Publication
   Type: Related publication
   Label: Ed.D. dissertation references the video footage that includes Early algebra ideas involving one variable, Clip 7 of 11: Beginning to recognize "secrets"
   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
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