Students need to follow the correct sequence to learn German easily.
Level A1 includes basic german grammar and vocabulary. After completing this level you would be able to construct and understand simple daily life sentences.
A2 is the second level after completing level A1. A2 includes the understanding of indirect objective case (dative case), prepositions with dative and accusative, reflexive and separable verbs, declension of pronouns, simple future, past and passive voice.