Early algebra ideas involving two variables, Clip 1 of 18: Open sentences that can be made true or false with legal or illegal substitutions [video]. Retrieved from https://doi.org/doi:10.7282/T3H41QBP
DescriptionThis first of 18 clips focusing on Early Algebra Ideas Involving Two Variables occurred toward the end of the first of two consecutive 6th grade class sessions. Researcher, Robert B. Davis, builds on earlier exploration with a single variable to introduce algebraic equations with two variables. He uses the symbols of square (referred to as a “box”) and a “triangle” as to represent the variables. Using the equation printed below, the class discusses ways to substitute values into the boxes and the triangle to make statements that are both true or false and legal or illegal. Amy-Lynn, Jeff and Ankur are featured during the activity. Researchers Carolyn Maher, Alice Alston and Amy Martino, along with Marcia O’Brien, district supervisor, and Michael Poe, teacher, are observing.
Problem statements as presented by the researcher.
□ + □ + ∆ = 9
Legal and false?
Illegal and false?
Illegal and true?
Legal and true?
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 footage that includes Early algebra ideas involving two variables, Clip 1 of 18: Open sentences that can be made true or false with legal or illegal substitutions. Date: 2008 Author: Giordano, Patricia (Rutgers, the State University of New Jersey)
Name: Learning the concept of function: Guess my rule activities with Dr. Robert B. Davis Reference: QA.G497 2008
Source Title: A51, Early algebra ideas involving two variables (student view), Grade 6, October 1, 1993, raw footage. Identifier: 51-19931001-KNWH-SV-CLASS-GR6-ALG-GMR-RAW
Source Title: A52, Early algebra ideas involving two variables (side view), Grade 6, October 1, 1993, raw footage. Identifier: 52-19931001-KNWH-SV-CLASS-GR6-ALG-GMR-RAW
Source Title: A53, Early algebra ideas involving two variables (classroom view), Grade 6, October 1, 1993, raw footage. Identifier: A53-19931001-KNWH-CV-CLASS-GR6-ALG-GMR-RAW