The instructional approaches used in the Marine Life Learning System are organized as shown in the Marine Life Learning System menu organization diagram. The structure of the program allows students to move from each activity or topic with ease, using a simple menu system and just a few keys. At the end of each unit the program returns to the main menu. Each student who uses the Marine Life Learning System is able to determine the pace and direction of his learning.

Text and graphics are interactively related in various aspects of the program. Anatomical drawings represent various marine organisms in four invertebrate phyla. The visual aids are intended to enhance the student's understanding of concepts which are explained in the text.

The documentation manual included with the Marine Life: Invertebrates learning system is designed to guide the user in the use of the program. The activity pages can be used by classroom teachers as supplementary material which supports the educational objectives of the program.

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