Wow, Thanks for the reminder of the arrogance that many 'English Teachers" carry. Brings me back to my days in Japan. I worn you though... read on with care... there will likely be more grammatical errors in this post.

I guess where my value resides, is in my extensive scientific vocabulary which I have developed over the past 6 years while earning an MSc. Grammar is not the only part of the English language. I am assuming that when a country such as Qatar, whose primary industry and GDP is based on petroleum, there may just be a niche market for English speakers who can train geologists and engineers there scientific lingo.

I am sure most of you grammar natzi's could tell me what a neutron or what an electron is. Perhaps you may even be able to teach a student about stable isotopes and compton scattering, confidentially too of course. Of course you will know about down hole logging tools and there purposes in delineating permeability and porosity, oil saturation, lithology and stratigraphic boundaries. I am sure you know all about depositional facies of siliciclastics and carbonate and how to tell the difference between a matrix supported, polymict conglomerate and a ooilitic grainstone. I am sure you know all about epithermal neutrons and thermal neutrons. Clearly you will know about seismic velocity and its relation to mineral density, Poissons ratio and youngs modulus. I could go all day.

It would take me less than a week to read a few books to improve and update my grammar. For you to build up to my level of fluency in both concepts and vocabulary in sciences, specialized towards engineering and geoscience, it would take you 6 years. Get off your high horses.
Congratulations, you can teach grammar to a high school level. I can teach a vocabulary and how to speak at a professional level. Writing is my weak point which can easily be improved.

Thanks for your kind words gmrg.