"Block" refers to "blocking" or "block scheduling," a type of academic scheduling used in schools in the American K-12 system, in which each pupil has fewer classes per day. "Interleave" refers to a learning strategy that involves switching between topics and ideas, which has been shown to improve long-term learning relative to blocking the study of the same idea or topic.

In Spanish, the noun "blocking" is translated as "clases en bloque." The verb "block" is translated as "agrupar clases en bloque." In a similar way, the noun "interleaving" is translated as "aprendizaje intercalado." The verb "interleave" is translated as "intercalar."