HSLDA Online Academy | Biology


Master Teacher:  Kristina Mayo

Dr. Kris MayoMaster Teacher

Kristina Mayo

DVM, VA-MD Regional College of Veterinary Medicine
BA, College of William and Mary

Dr. Kris Pelham Mayo is a veterinarian and classical homeschool tutor in the natural sciences. She received a BA in modern languages (German and French) from the College of William and Mary and a DVM (Doctor of Veterinary Medicine) from the Virginia-Maryland Regional College of Veterinary Medicine at Virginia Tech.

After practicing clinical veterinary medicine and surgery for a number of years, Dr. Mayo joined the faculty at the Community College of Baltimore County as an adjunct professor, where she developed and taught online classes in veterinary technology. She has been homeschooling her 4 children (ranging from elementary school age through high school age) since they were born. Since 2011, she has also been tutoring high school laboratory science classes, including biology, chemistry, and physical science, for a local classical homeschool tutorial.

Dr. Mayo is passionate about helping students learn more about their Creator by studying His creation! Students who enroll in her classes learn more than just science through a Christian worldview. They also learn how to learn. Many high school students can read a textbook, but they often do not really know how to study a textbook. Using classical, trivium-based techniques, her students learn for retention and develop practical study techniques, time management habits, and critical thinking and rhetorical skills that benefit them through high school and beyond.

Dr. Mayo lives on a farm in Bowie, Maryland, with her husband, 4 children, horses, chickens, rabbits, and whatever other animals show up at the farm. She is excited to be teaching knowledge, developing wisdom, and fostering understanding with a Christian worldview at HSLDA Online Academy.

Classroom Teacher:  Katrina Gellerman

Katrina GellermanClassroom Teacher

Katrina Gellerman

MS, University of Notre Dame
BS, North Dakota State University

Katrina Gellerman received her undergraduate degree in molecular biology at North Dakota State University and a master’s degree in biochemistry at The University of Notre Dame. She has conducted academic research involving isolating heme transport proteins in pathogenic bacteria and characterizing aberrant gene expression in ovarian cancer.

While in graduate school, she made the unexpected discovery that she loved teaching science more than laboratory research. She has since turned her efforts toward instruction, and has over five years of experience teaching and tutoring math and science students of a variety of ages and backgrounds.

Katrina was homeschooled K-12 and loves the personalized and flexible approach of home education. She has always enjoyed learning about and teaching the biological sciences and their role in displaying the complexity, beauty and majesty of the Creator. She is very excited to highlight the surprising intricacies of the world around us that we so often take for granted. Katrina also enjoys music (especially playing piano: Mozart sonatas and accompanying her sister’s singing), painting, hiking, needlework, and reading.

Classroom Teacher:  Angel Miera

Angel MieraClassroom Teacher

Angel Miera

MS, Georgetown University
BS, University of New Mexico

Angel earned an undergraduate degree in biology at the University of New Mexico. She earned her master’s degree at Georgetown University in the Department of Biochemistry and Molecular & Cellular Biology. Angel has extensive experience conducting independent research and is an experienced seminar speaker and author. She believes that using the scientific method during “hands-on” experimentation is the key to successful discovery. Angel’s passion in the area of science is molecular biology. Angel spent a considerable amount of time using various high-powered microscopes to make discoveries. She absolutely loves to illuminate the intricacies of God’s creation using microscopy!

During her time in the lab, Angel mentored several high school and undergraduate students. She has also taught biology online to undergraduate students. Angel’s favorite aspect of teaching is helping students live up to their God-given potential by presenting subject matter in an interesting way and challenging students to ask questions and dive deep into new material without fear.

In addition to teaching, Angel takes on various projects in the area of outcomes management for various non-profit organizations. Angel lives in Arizona, where she is happily homeschooling her young son. She enjoys traveling, the outdoors, and spending time with her family.

Duration: Yearlong course offered in fall/spring (32 weeks).
Suggested High School Credit Value: 1 credit.
Suggested Grade Level: 10th grade level and up.
Tuition: $495 for HSLDA Members/$545 for non-HSLDA Members. 

Description: In Biology, students will learn about life from the cellular level and up from a Young Earth Creationist worldview. Biology at HSLDA Online Academy will include lab work.
Watch a short introduction from Course Developer Dr. Kris Mayo.

Biology w/Lab — Live Online Class Session Schedule, 2017–18

Class Section

Weekly Meeting Time


Section 1
Closed – Section is Full
Wednesdays, 2:00–3:30 p.m. Eastern

Ms. Katrina Gellerman 

Section 2
Closed – Section is Full
Thursdays, 10:00–11:30 a.m. Eastern Dr. Kris Mayo
Section 3
Tuesdays, 1:30–3:00 p.m. Eastern Mrs. Angel Miera 
Additional class times will be added as they become available for registration. If you have questions, please call 540-338-8290 or email academy@hslda.org.

Frequently Asked Questions about Biology

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  • What topics will I learn about in Biology?

    Students who participate in this college-preparatory Laboratory Biology class will study a detailed introduction to the concepts and methods of general biology through a Christian worldview. Heavily emphasizing the vocabulary of biology, the scope of the course will include the study of:


    • The scientific method
    • The five-kingdom classification scheme
    • Organisms belonging to each of the five kingdoms of living things through microscopy and dissections
    • Cellular biology
    • Biochemistry
    • Molecular biology
    • Mendelian genetics
    • The evidence for creation vs. evolution
    • Ecology
    • A survey of human biology and disease, using a systems approach 


    Students will:


    • Learn how to read, research, and relate to the material through assigned readings and exercises, instruction, discussion, experimentation, microscopy, and dissections.
    • Have the opportunity to participate in hands-on laboratory experiments, maintain a laboratory journal, and prepare formal laboratory reports.  
    • Learn how to learn for retention, and have the opportunity to practice study skills, time management skills, and critical thinking and rhetorical skills throughout the course.  


  • What if I have a schedule conflict with listed Biology class times?

    All live class sessions are recorded for later viewing. While it is recommended that students attend each live class session, students can make arrangements to watch the recordings and receive full participation credit.

    Students should contact their instructor at the start of their course to inform the instructor of any foreseen schedule conflicts. 

  • What is a Live Online Class Session in Biology?

    In every HSLDA Academy course, students meet weekly with their instructor and classmates in an online classroom for additional teaching, discussion, Q&A, or group activities. The class sessions are interactive and are conducted using a web meeting software with video, audio, chat, and application sharing capabilities.

    Scheduled, real-time sessions in the online classroom are not the only form of instruction available in a HSLDA Online Academy course, but are offered in addition to lectures or other instructional materials that students are able to access online at their convenience.

    When they register, students will need to select a particular class section and live class meeting time. Additional class sections may be added to the schedule at a later point in the course registration period. Registered students will be notified of any changes to the live session schedule.

  • What is the tuition for Biology?

    Please visit our tuition and discounts page for a full summary about course costs.

    HSLDA members save $50 on yearlong high school courses!

  • Am I ready to take Biology?

    Biology with Lab is designed for students in the 10th grade and above. Students must be able to read and write at a 10th grade level or above. Students do not need laboratory science experience before taking Biology.  

    Although all laboratory experiments are available for viewing by the students, performing the experiments at home with adult supervision is strongly recommended for a broader and deeper learning experience. Please also consult your state's high school graduation requirements, to ensure that your student is completing the work expected of high school students in your state.