Sand table

Abax depicted on a vase by the Darius Painter[1]

Sand table is a term for using constrained sand for modeling or educational purposes. The original version of a sand table may be the abax used by early Greek students.

单词	Sand table
释义	Sand table 英语百科 Sand table Sand table is a term for using constrained sand for modeling or educational purposes. The original version of a sand table may be the abax used by early Greek students.
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