| 摘要 |
An educational device which teaches a child mathematical procedures, measurements and proportions including fractions as well as colors by permitting the child to visualize block members of varying dimensions and colors in relation to each other. A post element is secured to a base member and block members are constructed to be inserted on the post so as to permit the child to store the blocks and measure his own height in relation to the base and the block members. The post is detachable and has measuring indicia to allow the child to measure the blocks and the blocks are of varying colors some of which are arranged in sets to equal the base member so as to provide an understanding of fractional amounts.
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