Answer: i think the age that the author says its probably talking about like maybe primary school because it talks about how "its more important than they were in primary school" and i feel like there talking about when you start college and the new study's and skills were more important so maybe the answer would be that teachers give work assignments to students to give them new information and also teachers give homework to students because they want there students to learn new stuff and focus on what really matters like for the future and college. and also for my answer for the age it would probably would have to be "younger kids" and for older students" to i hope this helps.
