Since Fall 2003, a textbook was used in MAT220 (caculus I). For the last 4 years, handouts were created to supplement the textbook. This semester, students use only a workbook that I created. The purpose of this assessment is to document my observations in the level of engagement of students from using textbook only, slowly incorporating worksheets, to full implementation of a workbook. Most math textbooks are not designed to engage students, thus it was difficult to do so. When I began to incorporate more handouts with "exploratory" type questions, students became more involved with their learning process. Now (with the workbook), students must work together to come up with solutions. Students present the problems to their table mates as I go around the room and assist. There is still some lecture in class, but not what it was in the past. Not only is my teaching style different, but it is so much easier to get students involved with their learning by not using a math textbook. Communication and writing skills are used more in my classes than 10 years ago.