Understanding the Spiral Curriculum
Research shows that the spiral curriculum, introduced by Jerome Bruner in 1960, revolutionizes learning by revisiting key concepts with increasing complexity. Instead of teaching a topic once and moving on, educators can layer their instruction, allowing students to build a robust understanding over time. This approach is akin to constructing a house, starting with a solid foundation and adding layers progressively.

Building on these insights, a spiral curriculum leverages spaced repetition and interleaving, both of which are crucial for memory retention and understanding. Spaced repetition ensures that students revisit material at optimal intervals, enhancing long-term retention. Interleaving, on the other hand, involves mixing related concepts, which helps students see connections and deepen their comprehension.