Use the homework and posted solutions wisely. The problems are selected to help you check that you understand the concepts and to help you build your confidence, accuracy, and speed. By the end of the unit, you should be able to do these problems independently using efficient methods. If you are struggling along the way, keep on working! Come see me, talk with other math students, practice with homework and classwork problems, visit the math study center, keep on plugging away! You can do this. We are here to help.