This forum is for the day-to-day reality of coursework — the problem nobody in the house can solve, the topic that will not go in, and the assignment that has stalled.
Good things to ask here
Post the subject, the grade and what your child has already tried
Say where exactly the understanding breaks down, if you can tell
A photograph of the work helps, provided it shows nobody else
No question is too basic. If you are wondering it, other families are too — and a question asked here once saves the next parent the search.