Piaget called the reasoning that characterizes adolescence ...

[asan beg]

Piaget called the reasoning that characterizes adolescence
 
  formal operational thought.
  the game of thinking.
  metacognition.
  concrete operational thinking.

Question 2

When Piaget and Inhelder asked children of different ages to balance a scale using several different weights, they found that
 
  very young children tended to use logical deduction.
  7-year-old children tended to use spatial relationships.
  by age 10, children tended to use trial-and-error strategies.
  adolescents failed to see the complexities of the problem.

[Tonyam972]

Answer to Question 1

formal operational thought.

Answer to Question 2

by age 10, children tended to use trial-and-error strategies.

[asan beg]

Gracias!

[strudel15]

Thanks for the timely response, appreciate it