In his second year, you will probably be amazed by how much your child’s vocabulary grows. He’ll start to understand what is said to him, and by the year’s end, you might understand some of what he says to you!

Here are some of the things your toddler might do as he develops language and learns to communicate between the ages of one and two years:
Bates, E., Dale, P. S., & Thal, D. (1995). Individual differences and their implications for theories of language development. In P. Fletcher & B. MacWhinney (Eds.), Handbook of Child Language (pp. 96-151). Oxford: Basil Blackwell.
Fenson, L., Marchman, V. A., Thal, D. J., Dale, P. S., Reznick, J. S., & Bates, E. (2007). MacArthur-Bates Communicative Development Inventories (2nd ed.). Baltimore: Paul H. Brookes.
Flipsen, P., Jr. (2006). Measuring the intelligibility of conversational speech in children. Clinical Linguistics and Phonetics. 20, 4, 202-312.
Owens, R. E. (2001). Language development: An introduction (5th ed.). Boston: Allyn & Bacon.
McLaughlin, S. (2006). Introduction to language development (2nd ed.). San Diego: Singular.
Roth, R. P., Speece, D. L., & Cooper, D. H. (2002). A longitudinal analysis of the connection between oral language and early reading. Journal of Educational Research, 95(5), 259-272.