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Johnson, Martin L.
The purposes of this study were to: (1) determine the influence of a series of experiences involving the equivalence relation "same length as" and the asymmetric transitive relations "longer than" and "shorter than" on the ability of first and second grade children to classify and seriate objects on the basis of length; (2) investigate the…
Descriptors: Age Differences, Classification, Conservation (Concept), Educational Research
Garrett, Kimberly N.; Busby, Rosetta F.; Pasnak, Robert – 1998
This study examined the effect of an innovative teaching activity to improve concrete operational thinking skills with preschoolers in Head Start programs. A "learning set" of classification games and seriation games was used to teach the oddity principle and insertion into a series. These games were played with the children using toy ponies and…
Descriptors: Abstract Reasoning, At Risk Persons, Class Activities, Classification