Which term describes revisiting topics in increasing depth over multiple sessions?

• A. Cumulative
• B. Segmented
• C. Spiral
• D. Linear

Answer: (C)

Revisiting topics in increasing depth over multiple sessions is described by a spiral approach. In a spiral curriculum, you introduce a topic at a basic level and return to it repeatedly, each time adding more detail, context, and complexity. This builds on what learners already know and strengthens long-term retention through spaced repetition and progressive understanding. For example, in math you might first explore fractions as halves and quarters, then later use fractions in operations, then apply them to ratios and proportions, each revisit deepening comprehension. This differs from a purely cumulative approach, which emphasizes adding new material on top of old without deliberate cycles of deeper revisit; from a segmented approach, which treats content as separate blocks; and from a linear approach, which moves forward in a straight path without returning to prior topics.