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ERIC Number: EJ937227
Record Type: Journal
Publication Date: 2011-Aug
Pages: 7
Abstractor: ERIC
Reference Count: 5
ISSN: ISSN-1072-0839
Canine Conjectures: Using Data for Proportional Reasoning
Westenskow, Arla; Moyer-Packenham, Patricia S.
Mathematics Teaching in the Middle School, v17 n1 p26-32 Aug 2011
No person, place, or thing can capture the attention of a class of sixth graders like "man's best friend." To prompt students' interest in a series of lessons on proportional relationships, the authors brought in a unique teaching aid--a dog. A family dog was used to supply the measurements for scatter plots and variables so that students could explore relationships among data sets--not to mention paws and tails. Students used dog data and scatter plot applets to explore various relationships in a lesson called Canine Conjectures. A visit by a live dog provided the motivation, while electronic technologies allowed data to be efficiently processed, freeing students to focus on reasoning, observing patterns, decision making, and problem solving. (Contains 5 figures.)
National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191-1502. Tel: 800-235-7566; Tel: 703-620-3702; Fax: 703-476-2970; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Grade 6; Middle Schools
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A