Interdisciplinary Computer Science and Mathematics Don Pierce, Chair of Mathematics, Western Oregon State College, Monmouth, OR 97338 Ed Wright, Director of Academic Computing, Western Oregon State College Here at Western Oregon State College we have developed an interdisciplinary Computer Science and Mathematics course whose primary objective is to teach students to use mathematics and technologies in formulating and solving real-world problems. Mathematics and computer science are not treated as different disciplines but rather as tools that help us acquire, interpret and communicate information. In this course, students use mathematics and computer technologies to formulate and solve real-world problems. Developed under the Oregon State System of Higher Education (OSSHE) grant-- Reforming the Teaching of Entry-Level Mathematics In The Electronic Age. In this project we developed a model for a technology intensive cooperative learning environment which has resulted in significant student learning gains, dramatically increased student retention (from 60% to 95%), and decreased instructional costs by 65%, (as demonstrated by a third-party assessment project). Several other Oregon instutions are considersing adoption of our program. Last spring we linked this new course with a introductory biology course and assessed student learning in a number of areas. Fall 1996 we will complete this comprehensive assessment project--the preliminary results are very promising. By January the assesment data will involve over 800 students. Our paper will discuss the results of both assessment projects and attempt to show how the interdisciplinary nature of the course results in increased student engagement and learning.