The needs and capabilities of 4-year-old Head Start children were considered in development of classification and attention training curricula, including: (1) sensory exploration through object manipulation, (2) variety of high-interest materials, (3) change of pace during the lesson, (4) presentation of learning activities as games, (5) relating of new terms to the child's experience and vocabulary, and (6) instructing the child in concept meanings before asking him to follow directions using those concepts. Twenty lessons were developed in classification training, which emphasized labeling, description, likenesses and differences, and categorical grouping of such objects as plastic fruits, toy airplanes, and wearing apparel. A guided discovery method encourages the child to detect and recognize relationships for himself. Attention training lessons used materials such as stimulus shapes, parquetry blocks, and three-dimensional animals. The child learns to observe the characteristics of objects and then select like objects. For attention training, a minimum of verbalization and labeling is used as the child is encouraged to focus on visual stimuli. Head Start teachers have reacted positively to these curricula. (NH)