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ERIC Number: ED539159
Record Type: Non-Journal
Publication Date: 2007-Dec
Pages: 97
Abstractor: ERIC
Reference Count: 7
Comparative Effectiveness of the Texas Instruments TI-Navigator[TM]: Year 2 Report of Randomized Experiments in the East Side Union High School and San Diego Unified School District. Research Report
Hoshiko, Brandon; Jaciw, Andrew; Ma, Boya; Miller, Gloria I.; Wei, Xin
Empirical Education Inc.
The authors sought evidence of the effectiveness of the TI-Navigator classroom networking system for the second year of a two-year research study of Texas Instruments classroom technology. This randomized control trial compared Algebra I and Geometry instruction using the TI-Navigator system, which includes the TI-84 Silver Edition graphing calculator, to instruction with graphing calculators alone. The technologies did not provide a separate math curriculum, but did not include curricular materials. The authors asked whether students in classrooms with access to the TI-Navigator system and training, achieve higher scores than students in classrooms receiving only graphing calculators and training, whether TI-Navigator has a differential impact for students with various incoming math achievement levels, and whether the impact depends on gender or English proficiency. For the most part, the experiment could not discern an impact as a result of providing the equipment and training for TI-Navigator. In Algebra, while they found no overall difference, there was some evidence of a small negative impact for students scoring "below basic" on the CST and, holding pretest score constant, for English proficient students. Overall, the authors found that the TI-Navigator affected the average number of minutes the technology was used. (Contains 16 figures, 60 tables, and 32 footnotes.)
Empirical Education Inc. 425 Sherman Avenue Suite 210, Palo Alto, CA 94306. Tel: 650-328-1734; Fax: 650-328-1794; e-mail:; Web site:
Publication Type: Reports - Research
Education Level: High Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: Texas Instruments
Authoring Institution: Empirical Education Inc.
Identifiers - Location: California