This study investigated the role of different modes of representation, i.e., verbal description, decorative pictures, informational pictures and number line, in solving additive change problems. Data were collected from 1447 students in Grades 1, 2, and 3. Structural equations modelling affirmed the existence of four first-order…

A study conducted to determine whether color makes a significant difference in learning from 16mm sound motion pictures by subjects accustomed to the widespread use of color in contemporary media found no significant differences for the groups of first graders, sixth graders, ninth and tenth graders, and college students tested. (RAO)