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  • Date: 05/24/1975
    Resource Category: Peer-reviewed article
    Discusses the objectives of Outdoor Biology Instructional Strategies (OBIS), one aspect of the program (lawn communities) and the evaluation of this activity. Includes resultant recommendations. The evaluation criteria are suggested as a model to be used in either designing or in evaluating curricula. ... »
  • Date: 05/24/1975
    Resource Category: Peer-reviewed article
    Describes the use of the "Plant Wheel" by the University of California Botanical Garden as a means of providing elementary school children with a structured activity as they explore the Garden at their own pace. This activity accommodates the children's curiosity, energy, and attention span. ... »
  • Date: 01/01/1971
    Resource Category: Project Descriptions
    The Maine Volunteer Lake Monitoring Program (VLMP) trains and supports volunteers who keep and eye on the health of their lakes. Our volunteers measure multiple indicators of lake water quality and screen for the presence of invasive aquatic plants such as variable milfoil. Our mission is to provide protection for the nearly 6,000 lakes in Maine ... »
  • Date: 01/01/1880
    Resource Category: Project Descriptions
    The North American Bird Phenology Program houses a unique and largely forgotten collection of six million Migration Observer Cards that illuminate migration patterns and population status of birds in North America. These handwritten cards contain almost all of what was known of bird status from the Second World War back to the later part of the ... »