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Lynch, Patrick D. – 1973
In 1971 and 1972 a group of Ecuadorean evaluators planned and carried out an evaluation of the new textbooks for reading, mathematics, and sciences in the first grade classrooms of 88 schools. A field experiment was designed in which each school was assigned to a test condition: (1) obligatory use of all the textbooks and guides, (2) use of the…
Descriptors: Academic Achievement, Arithmetic, Comparative Education, Grade 1