Sandra DeFex Math and physics teacher

I will try to understand your needs, weather you hate this subject and just want to pass, or whether you want to get a deeper knowledge of the problem. I am dedicated and would do my best to explain the concepts.
My experience working in many classes with different age groups, have taught me to have lots of patience, to encourage my students, and to try different methods so the student can understand.
It does not matter if you are completely lost or just want an extra push. I truly want to help! tell me what you are looking for and i will adjust to you.


  • EFL (Grade 6-Bachelors (Undergraduate))

  • Physics (Grade 6-Bachelors (Undergraduate))

  • Statistics (Grade 6-Grade 12)

  • AP Calculus (Grade 6-Bachelors (Undergraduate))

  • Algebra 2 (Grade 6-Grade 12)


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  • Physics Engineering (Sep, 2010 - Apr, 2018) from Universidad Nacional de Colombia, medellin

Fee details

    Pesos25000-40000/hour (US$7.63-12.21/hour)