Instructional apparatus

Claim 1

IN INSTRUCTIONAL APPARATUS, IN COMBINATION, MEANS FOR PRESENTING ONE OF A PLURALITY OF QUESTIONS TO A PLAYER, A RESPONSE REGISTER FOR SELECTIVELY REGISTERING ONE OF A PLURALITY OF RESPONSES ENTERED BY THE PLAYER, MEANS FOR INTERROGATING THE CONDITION OF THE REGISTER AND DETERMINING CORRECT AND INCORRECT PLAYER RESPONSES, MEANS RESPONSIVE TO SAID INTERROGATING MEANS FOR INDICATING A CORRECT PLAYER RESPONSE TO THE QUESTION PRESENTED, MEANS OPERATIVELY COUPLED TO SAID INTERROGATING MEANS SERVING TO INDICATE THE AWARD OF A SCORE FOR A CORRECT RESPONSE TO THE QUESTION PRESENTED, THE LAST SAID MEANS SERVING TO DIMINISH SAID SCORE WITH INCREASING ELAPSED TIME BETWEEN PRESENTING THE QUESTION AND INDICATION OF A CORRECT RESPONSE, MEANS SERVING TO SELECTIVELY PERMIT SAID REGISTERED RESPONSE WHEN INCORRECT TO BE CHANGED A PREDETERMINED NUMBER OF TIMES WITH A COMMENSURATE REDUCTION IN SAID SCORE WHEREBY SAID SCORE DIMISHES BY BOTH THE NUMBER OF ATTEMPTED RESPONSES AND THE ELAPSED TIME PRIOR TO REGISTERING A CORRECT RESPONSE, AND MEANS SERVING TO ACTIVATE EACH SAID MEANS ACCORDING TO A PREDETERMINED SEQUENCE AT ESTABLISHED TIME INTERVALS.