Book (Practical) Living Cogtrain puzzle invented by a doctor

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Home Economics and life environment studies
Cognitive Training to Boost Your Memory, Attention, and Imagination ・ The title "Cogtrain" (Cog-Tr) is an acronym for Cognition and Training. Cognition (function) is the ability necessary to live a basic social life, such as seeing, remembering, and imagining. It is also the "foundation of learning." For example, to memorize kanji requires the cognitive ability to recognize shapes, and to calculate it requires the cognitive ability to see numbers as quantities, not symbols. In other words, to write kanji and calculate it, you train the cognitive function that is the foundation.