What+is+SLA+-+LSA+4

**What is SLA? - LSA 4**
The LSA model accounts for other aspects of human knowledge:


 * First- through fifth-graders learn about 10 words a day, despite learning only about one word a week by direct instruction. (p. 17)

This can happen because:

A late grade school child will have read about 3.8 million words. The **direct learning** effect is calculated at .0007 words per word encountered X 70 (the approximate number of words in a paragraph). The **indirect effect** is .15 words per word encountered. An average student reads 50 paragraphs daily, amounting to 10 new words/day learned. (p. 22)

Landauer, T. K., & Dumais, S. T. (2004). A solution to Plato's problem: The Latent Semantic Analysis theory of acquisition, induction and representation of knowledge. Available at http://lsa.colorado.edu/papers/plato/plato.annote.html.