What’s the noteworthiness in Deutsch Language learning progress? The grammar learning to beginners is the hardest phase. Do you have some good suggestions or books?
Teach grammar first and foremost and don't let up. Endings, gender, inflections, cases, tenses, word order, every day in every lesson. Drill it. Never permit bad grammar habits. Teach the structural advantages. A simple example: Den Hund biss die Katze. English, for example, is imprisoned in rigid word order because it has thrown away genders and endings, and even native speakers have lost respect for case and number. Teach the disadvantages of trying to communicate with bad grammar in Germany. Without grammar one will always stick out in Germany as either hick or foreign. What is frequently called "Migrantendeutsch" will get you nowhere in Germany, and there are even places where it could get you beat up. There is a warm place in Germany for foreigners who learn the language; there is a very cold place in Germany for foreigners who butcher it.