Which aspect does semantic mapping help to visualize?

Semantic mapping is a graphic tool that helps learners visualize the relationships and connections between new concepts and their existing knowledge. By using this technique, students can engage with a topic by organizing thoughts around a central idea, showing how different pieces of information relate to one another. This visual representation allows for a deeper understanding and retention of knowledge since it illustrates how various ideas interconnect, reinforcing the learning process.

The other options focus on different aspects of language and learning. For instance, visualizing the structure of sentences centers on grammar and syntax rather than conceptual relationships, while understanding the chronology of historical events emphasizes a timeline approach rather than semantic connections. Lastly, grammar rules pertain to the formal aspects of language, which don't directly relate to the broader conceptual mapping that semantic mapping provides. Thus, the visualization of connections between new and existing knowledge is what makes semantic mapping particularly valuable in educational settings.