Intro 3

Tests should be accurate measurements of student's accomplishments, especially if their lives are to hang in the balance. Therefore, it makes sense to make sure that our student's silly errors do not result in terrible penalties. The philosophy underlying the computer assisted testing/homework illustrated and developed here addresses this question by making it simple to (automatically) check student responses for simple errors, and prompt them about those errors, so that students can correct these simple errors themselves, and get each problem right.
Or, if necessary, the student who can not answer the questions (even with help) will know that there is some fundamental failing. Either the student doesn't understand the material, or the student doesn't understand the question, or the student, in some unknown manner, can not do this kind of work.
Computer assisted testing/homework can act impartially, even handedly, to examine/exercise in such a way that both student and teacher can agree that the test/assignment is/was an effective instrument whose results can be trusted.

It seems appropriate to remind the reader that records of students' progress can be kept at the teachers' discretion.
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