Learning to form the past tense of some words: Group of answer choices occurs through trial and error. requires formal study of syntactical rules provided by parents or schools. does not require explicit awareness of grammatical rules. begins at around age 5.

When presented with media messages, americans should keep in mind that a) the first amendment requires that news reports be accurate and free of bias. b) all people should evaluate media messages for accuracy and balance. c) media messages should never be taken seriously. d) propaganda is against the law.