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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

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Teachers' Use of Transnumeration in Solving Statistical Tasks with Dynamic Statistical Software
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Lee, Hollylynne S.; Kersaint, Gladis; Harper, Suzanne R.; Driskell, Shannon O.; Jones, Dusty L.; Leatham, Keith R.; Angotti, Robin L.; Adu-Gyamfi, Kwaku – Statistics Education Research Journal, 2014
This study examined a random stratified sample (n = 62) of teachers' work across eight institutions on three tasks that utilized dynamic statistical software. We considered how teachers may utilize and develop their statistical knowledge and technological statistical knowledge when investigating a statistical task. We examined how teachers…
Descriptors: Statistics, Knowledge Level, Pedagogical Content Knowledge, Computer Software
Making Comparisons between Observed Data and Expected Outcomes: Students' Informal Hypothesis Testing with Probability Simulation Tools
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Lee, Hollylynne Stohl; Angotti, Robin L.; Tarr, James E. – Statistics Education Research Journal, 2010
We examined how middle school students reason about results from a computer-simulated die-tossing experiment, including various representations of data, to support or refute an assumption that the outcomes on a die are equiprobable. We used students' actions with the software and their social interactions to infer their expectations and whether or…
Descriptors: Middle School Students, Grade 6, Comparative Analysis, Hypothesis Testing