Solving problems is a practical art, like swimming or playing the piano - you can learn it only by imitation and practice.
Homework is given on an as needed basis. This usually ends up being 3-4 nights per week. The following conditions must be met in order to receive credit for the given assignment:
1. All work must be shown. Even the use of a calculator does not excuse you from showing your work - it just means you don't have to show the actual calculation.
2. The assignment must be complete. Not doing the last few problems will result in a homework zero.
3. Homework is due at the time of your class. No late grades will be given.
Keep in mind that I do not collect and grade your homework. All you have to do is try and show your effort. By doing this, you can have an A for your homework average, which is 10% of your grade.