DescriptionIn the sixth of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, the researcher, Robert B. Davis, challenges students to try to find more than one value for each of the open sentences printed below. As students respond, Davis keeps track of numbers that work by recording them in the bracketed truth set for the particular equation. Davis poses a question to the group about whether and when mathematical "secrets" should be shared or whether each individual should have the opportunity to discover important ideas about the problems for themselves before the idea is explained to everyone. Jeff, Michelle I., Ankur, Stephanie and Brian 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.
Equations Two through Eight as presented to the students:
2. (□ x □) - (16 x □) + 55 = 0
3. (□ x □) - (10 x □) + 21 = 0
4. (□ x □) - (15 x □) + 26 = 0
5. (□ x □) - (6 x □) + 5 = 0
6. (□ x □) - (7 x □) + 12 = 0
7. (□ x □) - (12 x □) + 20 = 0
8. (□ x □) - (12 x □) + 32 = 0
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 ideas involving one variable, Clip 6 of 11: Trying to complete truth sets for equations two through eight 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