Interleaving can improve foreign language learning: the case of Spanish grammar skills

What is it about?

In this study, we investigated whether interleaving -- a method of switching between topics while studying or practicing -- helps students learn Spanish grammar. The results showed that when one "interleaves" between topics across multiple days, interleaving substantially improves learning.

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Why is it important?

This is the first demonstration that interleaving can benefit foreign language learning. Most language learners and instructors do the opposite of interleaving: one topic is learned at a time. This research suggests that in some cases, taking this different approach is better.

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