Wing Lee Sees a Toy Train Go into a Tunnel

question 29

Multiple Choice

Wing Lee sees a toy train go into a tunnel and waits for it to come back out through the same opening.He's amazed when it comes out somewhere else.Piaget would say that Wing Lee cannot be more than _____ months old.

• A)4
• B)7
• C)10
• D)18

---

Definitions:

Disjunction

A logical operation that results in true if at least one of its premises is true.

Conditional

A logical statement that has the form "If A then B," implying B is true if A is true.

Biconditional

A logical statement of the form "if and only if", showing that both conditions must be true or both false.

Biconditionals

Statements that are true only if both components are either true or false together, often expressed as "if and only if."