Three elementary-school students were exposed to Fractions 1, an instructional program for fraction problem-solving skills based on "direct instruction" principles. Fraction performance increases could reasonably be attributed to the instructional program. Improvements were durable across a short follow-up period and transfer occurred to similiar…

This textbook is a second reader for Catholic children. The contents include age-appropriate stories and passages on the importance of emphasis, consonant sounds, marked letters, and punctuation marks. A list of Roman and Arabic numbers is also included.

Three proofs for the problem show there exist irrational numbers a and b such that a to the b power is rational'' are presented and discussed. (DT)

This study was supported by a grant from the Carnegie Corporation to Educational Testing Service. (MH)

Procedures for using an abacus to teach addition to learning disabled children are described. Considerations in choosing, constructing, and doing basic problems with an abacus are discussed. (CL)

Offers linguistic insights into number acquisition. Argues that the particular rhythmical structure of speech forms for numerical sequence provides children with the raw material to develop a concept "decade word. Children have to learn by rote a second sequence--decade numbers (10, 20, 20, etc). This is an important step in the detection of the…