Writing more words about a concept isn't necessarily an increase in the quantity of writing. The purpose of increasing quantity is to increase the number of attempts, to allow more opportunities for feedback. It may be better to increase the quantity of ideas the student must attempt to communicate. To elaborate on the same idea would still be expanding on a single attempt, rather than creating more attempts at the same idea. Some methods of increasing the quantity of attempts could be either assigning questions with higher complexity (involving more parts... (read more)
Writing more words about a concept isn't necessarily an increase in the quantity of writing. The purpose of increasing quantity is to increase the number of attempts, to allow more opportunities for feedback. It may be better to increase the quantity of ideas the student must attempt to communicate. To elaborate on the same idea would still be expanding on a single attempt, rather than creating more attempts at the same idea. Some methods of increasing the quantity of attempts could be either assigning questions with higher complexity (involving more parts... (read more)