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If you're not completely satisfied after your first class, we'll refund your purchase. more info

If you didn't do the lesson, it's cancelled or you are not completely satisfied within 24 hours passed your first lesson, we'll help you find a new tutor or refund your purchase.

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You will need to enter your payment details in advance. In the case of individual class bookings the amount will be charged for at the time of the class, but if you purchase a pack of classes, the payment must be made upfront.

Carlos E.

He's from Colombia



over 1 year of experience teaching online classes

  • Chemistry Middle sc., High sc. / Sixth form, University



EnglishWorking proficiency


Master/Postgraduate Magíster En Ciencias - Química
Degree - B.A. Química


The tutor wrote the presentation in another language Translate it online

Mi método de enseñanza acerca al estudiante a entender el fenómeno antes del manejo de fórmulas. Las clases inician con la explicación del fenómeno, posteriormente la aplicación de fórmulas y finalmente el desarrollo de un taller. Tengo mayor experiencia con estudiantes de bachillerato y universidad, con los cuales tengo 2 años de experiencia dictando clases

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

Carlos E. accepts bookings with at least 48 hours in advance.

hours Monday

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


Excelente profesor cumple con todo los parámetros amabilidad, responsable y muy puntual, buen conocimiento y manejo del tema gracias.
Claudia Salazar
Excelente, explica adecuadamente, da las bases necesarias para entender lo que el estudiante requiere, es un excelente profesor, super recomendadísimo.
Muy buen profesor, explica los temas de una manera muy dinámica, y es un profesor que tiene una manera de explicar muy particular.
The description has also been written in other languages, click here to read them all

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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