Practice assignments can be found on the Materials by Topic page on this website.
This page primarily focuses on and contains the explanation assignments.
Here is a link for the Explanation assignment Instructions
EA stands for Explanation Assignments, for you to work on.
EATSA stands for Explanation Assignment Tips and Selected Answers, for you to check your work and get extra hints about how to do the problems.
For EAs, I will often supply tips and selected answers as a separate document. I share tips to help when I am not readily available and answers knowing that the answers are not the most important part of your assignment. The explanation and process of getting to that answer are the important parts, these are solutions. These answers are so you can check your final answers and make sure you have done it correctly. Akin to odd number answers in the back of the book.
My thought- Answers are the final value, solutions are the explanation of where the answer comes from. I care about solutions much more than the answers.
Optional online assignments are accessible on Canvas also called eLearn