Use "this" for one object (singular) which is here (near to us).
Example: This is a book in my hand.
Use "that" for one object (singular) which is there.
Example: That is his car over there.
the plural of ´'this' is 'these' and the lural of 'that' is 'those'
Not sure if everybody here is learning German from English. In that direction, "diese" is the English close at hand, this, whereas "die" (in this case of gender) or "jene" are "that," recalling from German classes in high school....
I'm impressed by the difference in the use of this tense, since in English, "Where" means a detail specific enough to make this the simple present and NOT the present perfect. In German, the emphasis is slightly different I'm gathering....
I REALLY don't like that unclear male German voice. Sometimes he clips off words or blurs over them so badly even my German g.f. can't figure out what he's saying. And the slower speech button doesn't work for him ever.
Hans, geh Weg!