Data over a five-year research period from University of California at Irvine proved students using CATALYST for online general chemistry homework had more learning gains and higher retention of chemistry concepts when tested one year later, than those using graded paper-and-pencil homework. This presentation will outline how WileyPLUS with CATALYST delivers more than just "time on task" for your students. WileyPLUS with CATALYST assignments have multiple levels of parameterization, and test on key concepts from multiple points of view that move students beyond rote application of algorithms to solve problems. In this session you will learn how to easily assess student understanding and enforce retention of learned material.