The presenter chose a wonderful opportunity, which was spontaneous, to begin her lesson where she dropped her markers.
This video features Kinders but it could easily be adapted for grade 1's, 2's or 3's depending on their experiences.
Again, I think this is kindergarten but the process she is going through is so valuable for all grade levels. I like how she modelled what she wants the kids to do with their stories. I am assuming she would have taught all of those revising skills in previous mini-lessons.
A very short mini-lesson on adding a tip to a "How to.." writing using the mentor text. Great instructional strategies used here.