A science text that is written in a non-textbook tone. Helps hold the attention much longer. The experiments are fun and relevant. I prefer the spiraling approach for math, but this 'mastery' approach for science. I think it makes more sense. I think it helps kids to build a 'compartment' in their brains to store information. This course is completely adaptable. For example, my non reading autistic son just listens, discusses, and does experiments. My older daughter really likes doing the companion workbook. I highly recommend the workbooks.
"I LOVE Zoology"! These are words a homeschool mom loves to hear! My daughter loves Apologia. She read through Zoology 1, so I bought this to do this semester. She said it is so interesting. The people at Apologia write "To" the student in language they can understand. I would recommend any of their products.