Number sense involves understanding relationships and conveying which of the following?

Number sense is fundamentally about understanding and working with numbers. It encompasses the ability to recognize, represent, and manipulate quantities, as well as to make sense of numerical relationships and patterns. This includes the ability to interpret and convey information related to quantities, such as how many items are present or how numbers relate to each other in different contexts.

The focus on "quantities and information" highlights how number sense helps individuals grasp concepts such as addition, subtraction, grouping, and comparing amounts. It facilitates mathematical reasoning and supports problem-solving capabilities. Through this understanding, children gain the foundational skills necessary for more complex mathematical reasoning and operations later on.

In contrast, the other options do not directly relate to the core principles of number sense. Emotional responses, geometric properties, and narrative structures pertain to different aspects of learning and cognition that do not specifically address the numerical relationships, quantities, or the mathematical communication inherent in number sense.