This curriculum guide contains four units with relevant problem areas and is intended as a source unit for agricultural education. These problem areas have been selected as suggested areas of study to be included in a core curriculum for secondary students enrolled in an agricultural education program. Each problem area includes some or all of the following components: related problem areas, prerequisite problem areas, occupational tasks addressed, learning assessment plan sheets, instructor's guide, information sheets, student worksheets or assignment sheets and keys, demonstrations, transparency masters, and a discussion guide for transparencies. Suggestions are made for use of the core materials, including specific suggestions for using the different components of a problem area. The guide contains four units: (1) environmental protection; (2) forestry; (3) fish and wildlife management; and (4) outdoor recreation. (NLA)