Suppose you're using an operant conditioning approach to teach someone how to use a bow and arrow. you begin by teaching your student how to hold a longbow. then you show him how to maintain balance while holding the bow. finally, you show him how to aim and properly release the arrow toward a target at the correct moment. this operant conditioning approach is called
a. programmed learning.
b. approximation.
c. partial reinforcement.
d. shaping.

which one of the following statements best illustrates implicit memory?
a. maxwell pondered that time, so long ago, when president roosevelt spoke on the family radio.
b. at age 40, after 15 years, george got on his old bike and found he could still ride it without falling off.
c. grace had heard the story about how, when she was three, she blew out the candles on the cake many times.
d. gina searched her memory and explained that if you know two angles of a triangle, you also know the third, since 180 degrees minus the sum of the two angles gives you the answer.