The importance of fraction knowledge to later mathematics achievement, along with U.S. students' poor knowledge of fraction concepts and procedures, has prompted research on the development of fraction learning. In the present study, participants' (N = 536) development of fraction magnitude understanding and fraction arithmetic skills was assessed…

Reports study which compared the value of Piagetian tasks--seriation, conservation and multiple classification--to that of traditional intelligence tests--Cattell and PMA 5 to 7 subtests--as predictors of number language, simple computation, and verbal arithmetic achievement in 312 children from kindergarten to grade 4. Fifty references are…

Two samples of 50 kindergarten children each were tested for IQ, reading and arithmetic achievement, and rated by teachers for social and academic competence. The children were tested again in third grade for reading, spelling, and arithmetic achievement, and rated for classroom coping behaviors. In addition, one kindergarten sample was rated for…