Based on the idea that active participation stimulates the processes by which learning takes place, this document provides teachers and students with a variety of information and learning activities which deal with plants. Basic concepts about plants are presented through the use of laboratory experiences, learning stations, field trips, and individual and group activities. The material focuses on: (1) the parts of trees and flowers; (2) the classification of plants (including the use of a simple dichotomous key in classifying trees); (3) making leaf collections and tree silhouettes; (4) germination of plants; (5) the transportation of water in celery; (6) tree dating; (7) building a sugar molecule; (8) poisonous plants; and (9) things to look for on field trips. The amount of time required for completion of the activities varies from a few minutes to an entire class period. The activities require little or no expensive materials. Included are reproducible handouts for many of the activities, along with quizzes, self-checks, and answer sheets. (TW)