🧠 Cognitive-science-backed practice

Interleaved practice

Instead of drilling one topic in a block, we mix questions across your 5 weakest topics in random order. This "interleaving" approach is well-established in the memory-and-learning literature (see Rohrer & Taylor, 2007; Bjork, 2011) as a more effective way to build durable retention than blocked practice, because your brain has to actively identify which method applies rather than repeat a single one.