Mechanical learning aid comprises flat information carrier with rectangular and/or quadratic, equally sized chessboard-type fields, many carrying information, and working with template provided with first marking

摘要

The fields (4) of a first rectangular or quadratic area (11) are each provided with a quantity of information and the fields of a second field area (14) are provided with an amount of information. A template is provided with a first marking and can be placed in different positions on the carrier (1) in order to mark individual information fields as problem information. It also has a second marking which produces result information from another field. Preferred Features: A second template has a complementarily formed corner which can be laid against the edge of the first template provided with a groove. The two templates laid against each other form a rectangular or quadratic periphery.