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Welcome to
Learning CTR Online!

Critical Thinking & Reasoning

Learning CTR Online emphasizes and promotes LEARNING through an online avenue. Learning pervades every aspect of life so Learning CTR Online caters to much more than academics! We offer professional expertise and experience in:

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Click here for a

Tribute to Mr. Riesen

from two students.

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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