We do a new dictation every other day. So we alternate between kids.
Older kids also don’t need me to prompt them in studying the passage and when I dictate it’s fairly quick. They correct their own work.
Little kids (gr 3-5) typically need more of my attention (slower dictation, help studying the passage) so I make sure I pair up one older with one younger when we alternate so It won’t take take up too much time.
Hope that all made sense???