How is an integrated lesson different from a topic- based unit?

An integrated lesson combines multiple subjects around a central theme or concept, allowing students to make connections between different areas of knowledge. In contrast, a topic-based unit focuses on a single subject and explores it in depth, often through a series of lessons that build on that specific topic. Integrated lessons emphasize interdisciplinary learning, while topic-based units provide a more specialized, in-depth exploration of one subject. This difference fosters broader connections in integrated lessons, whereas topic-based units promote mastery within a singular area.