This booklet uses both words and photographs to describe behavior patterns typical of children from one to two years old and to suggest home play activities appropriate for use with children of this age. The booklet is organized into four age ranges: 12-15 months, 15-18 months, 18-21 months, and 21-24 months. Within each of these sections, a general overview is presented and typical behaviors and activities of children are described under four headings: learning about self and others, discoveries and achievements, problem solving, and imagination. Directions for making toys at home are contained in the final section. (JMB)