First and second language acquisition

1. Introduction2. Defining the Terms2.1 First Language acquisition 2.2 Second language acquisition3. Acquisition Process3.1 First language acquisition3.1.1 Input3.1.2 Production3.1.3 Errors and Error Correction3.2 Second Language Acquisition3.2.1 Input3.2.2 Production3.2.3 Errors and Error Correction4. Critical factors in language learning4.1 First language Acquisition4.1.1 External4.1.2 Internal4.1.2.1 Universal grammar4.1.2.2 Mental Development4.2 Second language Acquisition4.2.1 External4.2.2 Internal4.2.2.1 Age 4.2.2.2 L1 Influence4.2.2.3 Motivational Forces5. ConclusionBibliography