Instead of Biology, Dr. Shormann recommends DIVE Earth Science which can be used as a high school science credit. Then, take ICP in 10th grade, Biology in 11th grade and Chemistry (or Physics) in 12th grade.
Earth Science will be easier than Biology and allow your student more time to "catch-up" in math. The math sections of the SAT and PSAT are half of the score. So math should be the priority.
If the student is taking Algebra 1, DIVE ICP can be taken over the summer, before Biology, using our accelerated pace schedule. See this article for details: Why Do You Recommend Integrated Chemistry & Physics before Biology?
For Pre-Algebra, Dr. Shormann recommends Saxon 8/7, 3rd Edition, which provides an excellent foundation for Algebra, science, and preparing for the PSAT, SAT, and ACT. This course features video lectures that teach every lesson in the Saxon Math text, as well as a solutions manual with step-by-step solutions to every problem, Q&A email support with Dr. Shormann, and much more! Learn More: Pre-Algebra: DIVE Math 8/7, 3rd Edition