The relationship of different concepts at one level is:

The relationship of different concepts taught concurrently at the same level is known as Horizontal organization. This approach emphasizes the integration and correlation of various subjects or topics within a single grade level or stage of education. Its purpose is to help students see connections across different disciplines, fostering a more holistic and interconnected understanding of knowledge rather than isolated subjects.

• Vertical organization refers to the sequential arrangement of content from one grade level to the next, building upon prior knowledge.
• Centralized and Decentralized refer to administrative control over curriculum, not the relationship between concepts.