Teachers should use this when teaching Phonology, or the part of linguistics that deals with sounds. Here is a map of where the tongue should be. We use the International Phonetic Alphabet (IPA) to write phonetic words, represented by the symbols above.
Indo-European language roots Minna Sundberg, a Finnish-Swedish comic artist, created this beautiful tree to illustrate both the relationships between European and central Asian languages generally, as well as a smaller but still striking point: Finnish has less in common with, say, Swedish than Persian or Hindi do. The latter two are Indo-European language, even if they branched off more quickly, whereas Finland is Uralic.