Hermaphroditism is a rare genetic disorder, as only about ________ cases have been documented worldwide

Which of the following would be a discriminative stimulus for Jeremiah, a third grade student who takes pride in being labeled the class clown?

a) The principal's office b) His father's tool shed c) A roomful of students d) The middle school bus

In the case of understanding metaphors, young children

a. cannot understand even simple metaphors. b. can understand simple metaphors, but not ones based on abstract relations. c. can understand metaphors that are based on abstract relations. d. develop this understanding very rapidly.