Working-memory practice: study a list of 3 to 11 digits, letters, or words for about a second per item, then answer one question about it from memory. The question asks for the item that came right after a named one, the item at a given position, or the option that was never in the list. Difficulty rises with longer lists, with questions that need the order rather than just the set, and with positions toward the middle of the list. Every explanation replays the list and names a technique you can reuse — grouping digits like a phone number, turning letters into a sayable word, linking words into a picture or story, rehearsing neighboring pairs — so you hold more with practice. Distinct from Observation & Memory (recalling details from a described scene): this is sequence recall. Skill practice, never an intelligence measure.
• Meets you at your level — never too easy, never too hard.
• Adapts every question to how you’re doing.
• Tracks your level over time. Skill practice, not a test.
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