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He's from Philippines , currently lives in Kazakhstan


Join me and let us make your learning journey fun and easy!

Hello to all students around the globe! I am Ronnie Rustia, a graduate of Bachelor of Secondary Education major in physics. I have been teaching for 14 years now both local and international schools. I have been tutoring during my free time. I have handled mathematics, basic sciences, and physics for elementary and high school students. So far, I have mentored Europeans, Singaporeans, Chinese and Indonesian students. I covered Cambridge curriculum mathematics for grades 7 & 8, IGCSE Physics, IGCSE Combined Science, and AS & A Level Physics. I really believe that learning will be made easy and fun by the teacher.


over 10 years of experience teaching online classes

  • Maths
    Algebra Elementary sc., Middle sc.
    Basic Math Elementary sc., Middle sc.
    Linear Algebra Elementary sc., Middle sc.
    Join me and let us make your learning journey fun and easy!
  • Physics
    Electrical circuits Elementary sc., Middle sc.
    Thermodynamics Elementary sc., Middle sc.
    Nuclear Physics Elementary sc., Middle sc.
    Basic Physics Elementary sc., Middle sc.
    Physics (Mechanics) Elementary sc., Middle sc.
    Quantum physics Elementary sc., Middle sc.
    Do you not like Physics? Join and let me show you the wonders of physics!




Degree University Diploma
Master/Postgraduate Units Studying

Book an online lesson (The calendar displayed shows your local time)

Ronnie accepts bookings with at least 48 hours in advance.

hours Monday

Can't find the availability that suits your needs?

About me (pictures, hobbies, extracurricular interests...)

Frequently Asked Questions

• Can I cancel a booking?

Yes, you can cancel booking up to 8 hours before the lesson starts, indicating the reason for the cancellation. We will study each case personally to carry out the refund.

• How do I pay for the lesson?

At the time you select a lesson or package of hours, you will make the payment through our virtual payment service. You have two options:
- Debit / Credit
- Paypal
Once the payment is settled, we'll send you an e-mail with the booking confirmation.

• Can I modify a booking?

Yes, something unexpected can always happen, so you can change the time or day of the lesson. You can do it from your personal area in "Scheduled lessons" through the option "Change date".

• How does a lesson at Classgap happen?

The class is done through classgap’s virtual classroom. Classgap was developed specifically for educational purposes, including many useful features such as: digital whiteboard, online text editor, webcam, screen sharing and many more.

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