Designed for the instruction of emotionally handicapped children and youth, this guide presents mathematical concepts and activities which may be utilized in outdoor education. Three authors provide three individualized resource guides on mathematics; Guide 1 deals with the concepts of measurement, time, estimation, geometry, counting, and fractions which are correlated with outdoor activities. For example, the measuring concept calls for measuring acreage using string, pacing, students' bodies, or tapes and suggests that areas to be measured include woods, fields, and playgrounds in rural areas and parks, playgrounds, and shopping center parking lots in urban areas. Similarly, guide 2 deals with skills relative to counting, measuring, the basic compass, geometric figure finding, and tree ring study for the primary levels. For intermediate levels, projects are focused on the use of maps (pace map making), Baltimore Sticks, diameter tapes, graphs, compasses, ranger stations (grid work for fire locating purposes), streams (volume), and triangulation for vertical distances and inaccessible areas. Guide 3 presents 21 separate activities which include such ideas as treasure hunts (looking for specific measurements) and walks (looking for posted numerals, listing shapes found in the neighborhood, and taking and comparing temperatures found in different locations). (JC)