Languages on earth are classified by genetic and typology. In terms of typology, the languages are divided into analytic, agglutinative and synthetic languages. The Turkish language is one of agglutinative languages in terms of typology. Because it is an agglutinative language according to its typology, Turkish is extremely rich in suffix. In Turkish, isomorphism has emerged as a result of diachronic and synchronic phonetic changes, having allomorphs of suffixes according to word bases and the effects of other languages. Therefore, the number of isomorphic suffixes the Turkish is quite large. Although much emphasis has been put on isomorphic words in Turkish grammar boks, isomorphic suffixes have not been sufficiently investigated.In fact, such problems are often explored by researchers working in the field of education and teaching of the Turkic. The Turkish studies conducted up to now more about teaching foreigners have focused on problems encountered in teaching Turkish, but problems in teaching Turkish morphology have not been adequately addressed. However, one of the problems encountered in the teaching of Turkish language is the confusion of isomorphic suffixes. For this reason it is very important to do independent studies on isomorphic suffixes. This article will focus on the problems arising from confusing of the isomorphic suffixes in Teaching Turkish Morphology and will provide a methodology for resolving these problems. In this way, the isomorphic suffixes which are confused by students will be gathered, the richness and diversity of sufixes will be revealed in Turkish and will be contributed to teaching of Turkish grammar.
Turkish, Morphology, Isomorphic Morphemes, Isomorphism