Read this paper on first and second language acquisition. It is an excellent summary of the topics dealt in class together with some consideration on bilingualism.
Clark, Beverly A. (n.d.). First and Second Language Acquisition in Early Childhood. Retrieved, May 1, 2008, from http://www.ceep.crc.uiuc.edu/pubs/katzsym/clark-b.pdf
http://es.scribd.com/doc/87039643/First-and-Second-Language-Acquisition
Next, read this summary on teacher talk published by Longman. These tips will be extremely useful once you start doing micro-teaching and later for the practicum.
http://es.scribd.com/doc/87039228/Teacher-Talk-1