This module for preservice elementary school teachers contains an extensive collection of ideas and materials for planning, modifying, and implementing mathematics laboratory activities. Objectives for the module are stated, pre- and post-assessment activities are listed, and six instructional activities to be completed by the preservice teachers are specified. The module includes 30 handouts describing games, activities, and materials which can be applied to math lab situations. Another handout describes a set of 11 "math lab kits" (collections of resource ideas built around a related set of manipulative materials), and a final handout explains the design and use of math lab activity cards. (DT)