EDUCATIONAL APPARATUS

• US 3,795,067 A
• Filed: 10/16/1972
• Issued: 03/05/1974
• Est. Priority Date: 10/16/1972
• Status: Expired due to Term

• Current Assignee: Harold Weinstein
• Original Assignee: Harold Weinstein
• Inventors: Weinstein, Harold
• Primary Examiner(s): Skogquist, Harland S.
• Application Number:
  US05/297,615
• Time in Patent Office: 505 Days
• Field of Search: 35/9R,9D,31F,35D,35H,48R,69,70,71
• US Class Current: 434/345
• CPC Class Codes: G09B 7/066 with answer indicating cards, blocks

Abstract

Educational apparatus including a block having a planar surface formed with a square array of holes therein. A card having indicia representing an educational problem is positioned on the planar surface and fixed thereto by a pair of pins inserted through a pair of holes in the card in registration with two of the holes in the square array on the planar surface of the block. Positioning of the pins fixes a code for choosing the correct answer to the problem displayed on the card. An answer to the problem is chosen by selecting an answer card having appropriate indicia thereon from the plurality of cards and superimposing the answer card on the problem card. The answer card selected, if correct, will have a pair of holes which register with the pins extending through the problem card to establish and immediately visually indicate to the student the correctness of the selection of his answer. If the holes on the answer card are not in registration with the pins, the student will have an indication of an incorrect answer and must select another answer card until registration is accomplished. The problem and answer cards are transparent so that their positioning on the planar surface of the block may be interchanged with the result that the answer card may become a problem card and the problem card the answer card, respectively.

Claims

1. Educational apparatus comprising:

block means having a surface for receiving at least two cards in overlying relationship;

one of said cards having indicia thereon representing an educational problem, the other of said cards having indicia thereon representing the answer to said educational problem, the indicia on said cards when said cards are placed on said block means providing a visual representation to the student of the educational problem represented thereon and the purported correct answer thereto, and code means on each of said cards and block means for enabling the student to check the correctness of the answer selected to the educational problem posed by the indicia on said one card, said code means including an array of holes formed in the receiving surface of said block means, at least two holes forming code marks on said card posing said educational problem corresponding to and in registration with two holes in said array of holes formed in the receiving surface of said block means, removable pin means for insertion through said holes in registration in said problem card and said block means, and the other of said cards containing said indicia purporting to be an answer to the educational problem posed by the indicia on said problem card containing code marks in the form of at least two holes which if the indicia on said answer card represents the correct answer to the indicia posing the problem on said problem card will register with said pin means inserted through the holes in said problem card and block means, and if incorrect, will not.

2. Educational apparatus in accordance with claim 1 wherein:

said problem card has approximately twice the width of said answer card and the indicia on said problem card is on one half thereof, the answer card being adapted to overlie said problem card on said block means on the half thereof having no indicia thereon so as to present the problem and answer thereto in tandem reading relation, and said problem and answer cards are formed from transparent material, whereby said problem and answer cards may be interchanged in their respective positioning on said block means so that said problem and answer cards may become answer and problem cards respectively because the answer card if positioned first on said block means will be visible through the half of the problem card having no indicia thereon.

3. Educational apparatus in accordance with claim 2 wherein:

said array of holes formed in said receiving surface on said block means is in a square array and the code holes on said cards correspond to at least two positions of the holes in said square array on said block means.