When building stamina, you should keep a visual of the time so that students are able to see their progress toward the goal. You can do this many different ways. I will be printing off some charts on colored paper, laminating them and then posting them on my white (gray) board. We will color in our minutes each day until we reach our goal:
I decided to add a few more charts with a different goal so that I could share them with you all! I know we all do Daily 5 differently, timing included. If you would like to snag a copy of these posters, head over to one of my stores!