Heart Maps are one of my favorite things - great activity! I also love your idea about building reading stamina at home. I read your post and thought, "Duh! Why didn't I think of that?!" It makes so much sense and goes along perfectly with Daily 5. Thanks for sharing!
Thinking Maps: Look at the link for examples by grade level. I just finished this training today and am really excited to help our kids master this processing tool. This school seems to love it in one year.