Vacuum extractors
A)are used in nearly 30 percent of U.S. births.
B)are more likely than forceps to tear the mother’s tissues.
C)have been rapidly replaced by forceps in most U.S. births.
D)doubles the risk of bleeding beneath the baby’s skin.
A high school science teacher, Mr. Reidy, wants to increase his students’ skill at
coordinating theory with evidence. He wonders whether he should provide them with
traditional scientific tasks or allow them to engage in informal reasoning. What should you
tell him?
A)Scientific reasoning is influenced by years of schooling, which can involve either of the
two methods.
B)Neither of the methods has been proven effective for increasing scientific reasoning.
C)Traditional scientific tasks are the only types of problems that improve scientific
reasoning.
D)Informal reasoning tasks are the only types of problems that improve scientific
reasoning.
Which of the following behaviors is consistent with Vygotsky’s theory?
A)When his mother takes him to the grocery store, Tom is well-behaved because he knows