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Contact Email:


Learning CTR Online prefers you contact using the email address provided. You may offer your phone number with a request for a direct call. However, for the sake of security and liability, it is best to communicate in writing.

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Credentials Summary

Brief Summary of Credentials

  • Experienced Teacher, Tutor, Song Writer, Editor/Proofreader, Grant Writer, Multi-Media Creator/Presenter, Curriculum Developer

  • Certified Online Science Instructor for 10 years (Chemistry, Biology, Physics).

  • Public School Science instructor for 25+ years (grades 7-12).

  • Curriculum consultant for 4 years (Chemistry, Biology, Physics). 

  • Full-time Christian Worker for 9 years.

  • Science Certification (Chemistry, Biology, Physics & General Science 7 - 12).

  • Offering complete curriculum for General & Honors Chemistry, General & Honors Physics, General & Honors Biology, Physical Science, .

  • Live interactive classes once per week. 

    • 32 week course.

    • Weekly Lab activities (50+ lab experiences).

    • 90 minute LIVE classes - [using Zoom].

  • Top scholarship + Biblical worldview.

  • Timely effective teacher feedback on assignments and extra help.

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Communication Commitment

Learning CTR Online is committed to communicating directly and forthrightly, with kindness and respect, regardless of the mode of communication and regardless of how we are treated. It is always best to attempt civil communication not based on assumption or hear say, but to "go to source" directly.


Conversely, learning CTR Online does not work with families or students who do not maintain forthrightness, kindness and respect in all their communications.

Fast Reliable Support

For academic, administrative or technology questions, the fastest way to get help is to email

As you navigate to new pages on this site, please inform Learning CTR Online of any errors, misleading information, or generally not clear content. It will get revised.


Enrolling in classes is a big commitment. Learning CTR Online is committed to helping you find the right science courses for your students. Go to the Courses tab above for course descriptions, etc. Feel free to email questions.


Craig T. Riesen

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  • Biology

  • Chemistry

  • Physics

  • General Science 7-12

  • Basic Administation K-12

  • Online Instructor

30+ years Teaching Experience

  • Public Schools (26+yr)

  • Online (7+yr)

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