Active Geometry Author:David A. Thomas Written by a nationally known mathematics educator, this lab manual provides activities for students using free/shareware software tools. Active Geometry offers inquiry-based, student-centered, technology-rich topical investigations into the study of geometry. The tools that Thomas includes leads students to construct, observe, conjecture, and d... more »ebate their thinking. After completing the labs, students are ready for and appreciative of analytic explanations of geometric concepts.« less