Explored were the relationships among students' mathematics language facility, procedural mathematics knowledge, and understanding and application of mathematics concepts. Findings indicate that students needed both procedural knowledge and language facility in mathematics for an acceptable level of conceptual achievement. (CW)

A 2-year study of optimal structures for multimedia instruction is being conducted to provide experimentally validated guidelines for the design of computer-based instruction generation systems and for human instruction in a multimedia setting. In order to obtain for analysis a significant range of the possible discourse structures that occur in…

Tests the universality hypothesis of language acquisition by asking young monolingual English and Japanese children to verify true affirmatives, false affirmatives, false negatives, and true negatives. The hypothesis was not supported in the case of Japanese-speaking children. A theory of cross-linguistic language acquisition is proposed.…