This is the first of a two-part series on the general concept of vector space. Provides tool procedures to allow investigation of vector properties, vector addition and subtraction, and X and Y components. Lists several sources of additional vector ideas. (JM)

LOGO tools are procedures which accomplish specific tasks. They can be furnished to students, along with suggestions for exploratory activities, or students can develop them. Several of these tools (program listings) with sample output are presented. (JN)