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The top documents tagged [acetate strips]
IADR 2010
980 views
When I was a primary student,my teacher told me to rub my plastic ruler by using a piece of cloth. As a result, the ruler attracted pieces of small
218 views
Starting with just a multiplication board, some acetate strips (cut from different colored report covers), or colored counters you can bring the “magic”
213 views
The “Magicplication” Board
29 views
ELECTROSTICS
13 views