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The Natural Integers Masterclass

Become an efficient calculator, from basics practice to deeply understood theory.

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The aim of that course is to give you the mastery of the construction and manipulation of the natural integers, the numbers we count with.

Starting with practical animated graphics, and Python manipulations, you will become by the end of that course a master in:

  • Counting and constructing the natural integers set, from zero to infinity
  • Comparing natural integers, and ordering the natural integers set
  • Adding, subtracting and multiplying the natural integers, including doing all these operations in a unique formula.
  • Understanding the powers of 10 and the exponential notation
  • Exponentiating the natural integers, and manipulating polynomials
  • Comparing the results of additions and/or subtraction
  • Comparing the results of multiplications and/or exponentiation
  • Expanding (a+b) to the power n, with a comprehensive firnal project about the binomial coefficients

At the top of all that, you will master the powerful proof by recursion, a tremendously useful method of proving theorems, based on the natural integers set construction.

That course includes 54 high quality video lectures, plus 10 downloadable recapitulative documents, one per section, with all the proofs.

And, as that course is rather long and intense, you will receive the lectures from the section 5 at a pace of one section each 2 or 3 days.

Do not bother, an email will announce their deliveries!


Your Instructor


Fabienne Chaplais
Fabienne Chaplais

Fabienne holds the “Agrégation de Mathématiques“
, the French Highest Degree to teach math in Secondary Schools.

After a career of 26 years as a R&D engineer in applied mathematics, she founded Mathedu (Re-engineering Mathematics) with her husband and collaborator François, 
to teach mathematics from a practical point of view, based on Python coding.

She is both an expert in teaching math and a passionated woman and will help you to experiment the joyce of increasing your mastery in mathematics.

Course Curriculum


  Section 1: Introduction
Available in days
days after you enroll
  Section 12 - Conclusion
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days after you enroll

Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

Wish to earn the Certificate of Arythmetics Mastery?

Enroll and take the course, answer the tests and final exam…

…and it's done!

Get started now!