At the beginning of this school year, I attended parent's night to get a sense of what Jake would be doing in 3rd grade. One thing that really interested me was a concept I had never considered before: reading stamina.
Jake's teacher talked about how most of their mornings are dedicated to reading: a mix of phonics work, independent reading, group work, one-on-one help, language activities, etc. Then she said that a lot of the focus for independent reading time is to build a child's reading stamina; at the beginning of the year there might be some children who can only read steadily for 5 minutes before being tired or restless or just plain DONE with it. The goal was to gradually move those kids up until they could read independently for long periods of time.