For this section read:. CLAD Handbook Ed. 2 Chapter 9CLAD Handbook Ed. 3 Chapter 8. The next slides will review background information on English Learners and immigration.. FUN FACTS: ENGLISH LEARNERS in . Forty-one percent of California students speak a language other than English at home.. Approximately 85 percent are Spanish speaking, 2.2 percent are Vietnamese speaking, and 1.5 percent are Hmong speaking..