Place value teaching device

A conventional odometer assembly of the type comprising a plurality of counting wheels with outer annular surfaces, each of said counting wheels having a sequential series of digits spaced evenly apart on said annular surfaces, motion transfer component means between said counting wheels for receiving and transferring rotational force, an axle means for rotatably securing said counting wheels adjacent to one another, a support means for supporting said axle whereby said counting wheels may freely rotate, and a means for transferring said rotational force to said motion transfer components, the improvement comprising,

• (a) a display means whereby a decimal point symbol and a plurality of place value names are displayed in unalterably correct relationship to one another,
• (b) said display means also providing means for lateral repositioning of said decimal point symbol and place value names in relationship to said digits so that said decimal point symbol and place value names remain in said unalterably correct relationship to one another, and
• (c) a support means to support said display means at predetermined height in relation to said digits so that said decimal point symbol maintains an elevation that is within reasonable proximity to the traditional location of such said decimal point symbol in relationship to said digits.