Jamey has learned to add two numbers in kindergarten. In first grade, her teacher helps her learn to add three numbers together. The help her teacher has given is called ________

Word-skipping data indicate that:

a) low frequency words are more likely to be skipped than are high-frequency words. b) word length is the best predictor of whether a word will be skipped or not. c) highly constrained words are less likely to be skipped. d) content words are more likely to be skipped than are function words.

What is the current prevalence of obesity in North America?

a) Between 10 and 20%. b) Between 20 and 30%. c) Between 30 and 35%. d) Between 35 and 40%.