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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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Winitz, Harris; Sagarna, Blanca – Journal of Psycholinguistic Research, 2007
The role of explicit and implicit acquisition of grammatical rules in second language learning was examined by assessing high school students performance after several years of study on the correct use of the Spanish verbs "ser" and "estar". These two verbs are essentially equivalent in use to the English verb "to be," but there is a complex set…
Descriptors: Verbs, Grammar, Achievement, Second Language Learning