| 摘要 |
PROBLEM TO BE SOLVED: To provide a memorization learning tool that enables a learner to recall, for example, a meaning from an English word or English sentence, or an English word or English sentence from a meaning. SOLUTION: The memorization learning tool comprises a teaching material having rows in a color other than red which are visible through a red sheet and rows in red which are invisible through the red sheet are alternately arranged, and a sheet for memorization comprising a transparent red sheet as one half and a completely opaque sheet as the other. COPYRIGHT: (C)2008,JPO&INPIT
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