I use this notebook in my special education classroom for my lower level learners. We complete one animal every Friday, and my students LOVE it! They have so much fun on Fridays and are still learning. It takes most of the day to complete an animal, but all 4 core subjects are built in (graphing, map work, writing, and of course, science). General education teachers on my campus are astounded with how my students become so well versed in science terms relating to animals.
I also have a mid-level and higher level notebook that can be purchased separately or bundled.