Trenton was playing in a sandbox. He was pouring sand from a short and wide fat
container into a tall and narrow container. When he poured the sand into the tall and
narrow container, it appeared as if it had more sand in it. Trenton could not figure out
where the extra sand came from, and how it got into his container. As Trenton continues
to try to solve this puzzle, he experiences considerable movement between states of
cognitive _____ and _____ to produce cognitive change.
A. equilibrium; disequilibrium
B. adaptation; organization
C. classification; modification
D. equilibration; categorization
Answer:
When one-month-old Mai is sleeping, it often looks like she is smiling. This is an
example of a _____ smile.
A. private
B. reflexive
C. natural
D. social
Answer: