This document discusses evaluating course materials that have been developed for an online course. It presents four questions instructors should ask themselves about improving instructional resources: how to improve quality, challenges of evaluation, planning to mitigate challenges, and remaining questions about implementation and evaluation. The key challenges are gaining experience with the ADDIE model of instructional design and developing experience evaluating resources with students. Planning can help by evaluating student assessment data to identify needed improvements. Overall experience with the iterative ADDIE process and input from others can help overcome challenges in developing high-quality online course materials.