Final answer:
The type of information you place in the columns of two-column or three-column notes can vary from one lecture to another and for different kinds of topics.
Step-by-step explanation:
In two-column or three-column notes, the columns are used to organize information. In the 'Observations' column, you would describe the information you gather from the lecture or source. In the 'Questions and Speculation' column, you would evaluate the information and consider different interpretations or connections. This section is important because different observers may have different interpretations.