system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Textbooks should not offer practice problems without an answer key.

My view is simple, if a textbook does not provide answers for practice problems, it should not have practice problems at all. It is impractical to not have a way to check your work when studying and as such is pointless without having a section dedicated to problems in each chapter. Many textbooks have a solution manual that accompanies the text so they should put the problems in that instead of the normal text book. Companies only do this gauge every penny they can and I doubt they would include everything in one book when they can sell two. Therefore, practice problems should be in the solution manual.
gpt
Teachers often use textbooks to assign homework problems. If they give a key to all problems, the teachers will have to use a different resource which will be a hassle for students as well. Most textbooks I've seen have the answer key to half of the problems, which works out best for everyone, leaving some practice problems for students and some assignment problems for teachers.