During guided reading groups (or any type of reading task for that matter) students can be given these bookmarks to use when they go off to read their book independently. They can put the bookmark at a page where they read something interesting or have a question about something. When they return to the group for reflection time, students can share their question or interesting thing. The bookmark is at the page to remind them about what they would like to share.
3 bookmarks per A4 page.