| 摘要 |
The present invention utilizes the cooperation between vowel letter surfaces on single vowel cubes and the letter surface on single consonant cubes to achieve a spelling practice of English vocabularies. By concurrently throwing or reversing one or several single vowel cubes and the single consonant cubes, the settled vowel letter surface and the letter surface facing upward further offer other phonetic practice. A serial vowel area and a serial consonant area on the single vowel cube and on the single consonant cube could help users swiftly find the letters. Serial numbers on each of the single vowel cubes and on each of the single consonant cubes are served for a speedy placement. Such teaching aid has a simple structure and low manufacturing cost. Moreover, since there are letters presented on each side of the cubes, a diverse arrangement is achieved. The present invention accomplishes a convenient utilization and diverse functions.
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