Click Here for the RHSA Teaching Co-op New Year: 2022-2023 Catalog Home Page

Supply Fee + May Tuition: $140

Monthly Tuition: $65

Homework: yes

Hours/Week: 5

Max/Min Students: 8/3

Age Range: 13-18

Class Code: BBTH    HS Level
Teacher: Dr. Ray Bohlin
Teacher Email:

A high school level biology course that provides a detailed introduction to the methods and concepts of general biology. Heavily emphasizing the vocabulary of biology, it provides the student with a strong background in the scientific method, the five kingdom classification scheme, microscopy, biochemistry, cellular biology, molecular and Mendelian genetics, dissection, and ecosystems. It also provides a complete survey of the five kingdoms in creation. The class will complete 10 microscope labs, 3 experiments, and 5 dissections incorporated in the text. In addition, we will be adding additional labs from a separate source.

Required text is Apologia Biology, 3rd edition. Author: Dincher
(Note: This is an edition change from previous years. Please do not try to have your student use the 2nd edition; it is extremely frustrating for everyone.)


Although I have served in ministry since college, all of my education is in science. I first earned a B.S. in zoology from the University of Illinois. At the University of North Texas, I earned an M.S. in population genetics, which is actually evolutionary biology. I knew that if I were going to be a critic of evolution, I needed to understand it better than the evolutionists. At the University of Texas at Dallas, I earned a second Masters and a Ph.D. in molecular and cell biology. So I have studied evolution on the macro level of animals and the micro level of molecules, all of which served to solidify my absolute conviction that God is Creator who has left His fingerprints all over His creation—and I see science as the study of those fingerprints.

I have been privileged to lecture and debate on dozens of college and university campuses in the U.S. and internationally. I have addressed issues in the creation/evolution debate as well as other science-related issues such as the environment, genetic engineering, medical ethics, and sexually transmitted diseases. I am also a Fellow with the Discovery Institute in the area of Intelligent Design.

For the last several years, I have served the Texas State Board of Education in providing oversight of biology textbooks, including testifying before the whole board on textbook issues that promote myths about evolution. Recently I have become a Content Advisor for all science for grades K-12. We are grateful for God granting this privilege, that a scientist committed to the truth of His Word has been given a voice that will impact millions of Texas public school students.


Class meets on Tuesday from 10:30 AM to 11:25 AM & on Thursday from 10:30 AM to 11:25 AM

All classes taught by Dr. Ray Bohlin:
Anatomy and Physiology (BAPTH)
Physics (BPTH)
Chemistry  (BCTH)
Biology (BBTH)
Building Confident Christians (BCC)