Mathematics learning equipment

Mathematics learning equipment

  • CN 101,354,845 A
  • Filed: 08/20/2008
  • Published: 01/28/2009
  • Est. Priority Date: 08/20/2008
  • Status: Active Application
First Claim
Patent Images

1. , a kind of mathematical learning equipment comprises framework (1), pin (2) and bead (3), and the pin (2) that is installed with nine beads (3) is arranged in the framework (1), it is characterized in that:

  • described pin (2) has 3~

    20;

    Bead (3) has two bottom surfaces (4), and the through hole that is complementary with pin (2) is arranged on bottom surface (4), indicates " 1~

    9 " nine numerals successively on the bottom surface (4) of nine beads (3) of every retaining.

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