The Learning with Otis program is designed to provide elementary school teachers with practical conservation education activities which should be infused into the existing curriculum on a regular basis. Although many of these activities are science-oriented, the program is not, and should not be considered a science curriculum exclusively. This activity book is the basic component of the program. It consists of lesson plans and student materials organized into eight topic areas: ecology; geology; soil relationships; land use; conservation ethics; wildlife; plants; and water and aquatic life. Each lesson plan includes: (1) the number(s) of Basic Essential Skills Test (BEST) objectives and conservation concepts fostered in the lesson; (2) specific lesson objectives; (3) a list of materials needed; (4) a glossary (called teacher resource words); (5) instructional strategies; (6) suggested student activities; and (7) when applicable, answers to student materials. Numbered lists of conservation education concepts and BEST objectives (for reading/language arts, mathematics, and government/economics) are included. The text for a conservation chart used with the first lesson on land use is included. (JN)