Although this is called a problem it is really an explanation of
how you will answer questions in the WeBWorK system which you will be using for some of your homework.

A question will often look something like this:

1+1=

The little box to the right of the $\ = \ $ sign is called an answer box.
When you see a problem like this, you should type the answer to the
question into the number box. Do that now.

Now you can see if your answer is correct by clicking on the box that says "Submit Answers".

No matter whether your answer is right or wrong you should submit another answer to see what happens then.

If you have submitted a number that is not the correct answer you have been
told that your answer is incorrect. But now see what happens when you put a letter in the answer box.

This time you saw a message. It looks sort of complicated but tells you that
that the letter you put in was not the kind of answer that was expected.

Now suppose you want to see whether you can get away without doing any work.
Try putting 1+1 in the answer box.

The reason for the message you got is this. This system was designed for
college students and they are being tested on more complicated problems and so
they are sometimes allowed to use + and other things in their answers and let do the arithmetic. But for students at your level this is not allowed.
The problem is written with "contexts" to decide what kind of answers to accept.

There is another button that you probably wonder about. It says "Preview Answer"
It is there because some answers for complicated problems, especially at the college
level are rather complicated and this allows students to make sure that they typed
what they thought they did.

There is probably one more thing that you want to know about. Assignments are
usually given on a certain day and must be "turned in" a few days later.
During this period the problems are called "open". After they are due they are called "closed".
(Because this is a practice problem is is always kept open.)

When a problem is open you can receive credit for answering it. The teacher can
decide how many tries you are allowed. When the problem is open there is a little
line that tell you (and the teacher) how many times you have submitted answers.