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You are putting down a rather fine line. The parent can answer a question, but not tell the child they have done a problem wrong? How is the parent helping to teach the child different than getting a paid tutor? Are you opposed to those as well? Having functioned in the positions of student, parent, tutor, and teacher (albeit college level), I don’t see how learning something from the parent is somehow inferior to learning from the teacher, as long as the student is willing to work with the parent, which as mentioned above, some are not.</p>
<p>Op has not said what types of errors are on the homework, other than the mental math aspect. Often said errors will consist largely of careless numerical errors.</p>