Source: The Great Interpretation of Dreams (Ibn Sirin)
(By analogy with writing and knowledge) Homework in a dream indicates a responsibility or a trust. Completing it indicates fulfilling the trust. Not completing it indicates negligence.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
(By analogy) Homework indicates worry and fatigue in seeking knowledge or livelihood.
Source: Signs in the Science of Expressions (Ibn Shaheen)
(By analogy) Homework is interpreted as worry. Whoever sees himself doing it is in worry.