No response from Professor; how should I remind him about writing a recommendation for me? I'm applying to a BS/MS program and I'm gathering recommendations. I'm an international student from China and I was transferred to my current college last year.

Two weeks ago, I went to see my professor during his office hours to ask if he could write me a recommendation letter. He agreed and told me to email him.

I sent my request a week later and it was just a general email asking for recommendation (without mentioning when I'd visited him). 

I still haven't got a response from that professor. It's possible that the professor didn't recognize me in the email, since I sent that only one week after going to his office.

Should I leave him a reminder in a follow-up email? Or should I do so in person?
I would send an email along these lines (taken from Cindy Au on Quora):


  Dear Professor [Professor's name], 
  
  The deadline for submitting letter of recommendation for [name of
  program/ fellowship] is quickly approaching. I would like to
  inquire if there is still any document I can supply to make your
  writing easier in addition to what we discussed during office hours 2 weeks ago. 
  
  I understand that this is a very hectic time in the school year and
  thus can't thank you enough for your time and support. 
  
  Respectfully yours,
  
  [Your name + ideally a link to some website containing your photo]