Teaching apparatus having uncoding template for coded answers

Claim 1

TEACHING APPARATUS COMPRISING: A QUESTION-ANSWER SHEET IMPRINTED WITH ADJACENT VERTICAL COLUMNS OF QUESTIONS AND RELATED ANSWERS RESPECTIVELY, SAID ANSWERS COMPRISING RESPECTIVELY ROWS OF ANSWER-SPELLING LETTERS INTERPOSED WITH CODING LETTERS RENDERING SAID ANSWERS UNINTELLIGIBLE; AND A TEMPLATE HAVING A BODY PORTION ADAPTED TO COVER SAID QUESTION COLUMN AND AN INTEGRAL LATERAL PORTION ADAPTED TO COVER SAID ANSWER COLUMN, SAID BODY PORTION HAVING A HORIZONTAL UPPER MARGIN ADAPTED TO BE POSITIONED BENEATH A SELECTED QUESTION SO AS TOI REVEAL IT ABOVE THE TEMPLATE AND TO FRAME THE QUESTION FOR STUDY, AND A TAB PROJECTING UPWARDLY FROM SAID UPPER MARGIN AS AN EXTENSION OF SAID LATERAL PORTION AND ADAPTED TO COVER THE ANSWER OF THE QUESTION THAT IS FRAMED FOR READING, SAID TAB HAVING A ROW OF UNCODING APERTURES ADAPTED TO REGISTER WITH THE ANSWER OF SAID FRAMED QUESTION UPON DOWNWARD SHIFTING OF SAID TEMPLATE FROM THE QUESTION-FRAMING POSITION, AND THEREBY TO REVEAL THE LETTERS SPELLING THE ANSWER WHILE COVERING CODING APERTURES HAVING THEREIN A REGISTRATION-INDICATOR APERTURE, AND EACH OF SAID ANSWERS HAVING AN INDICATOR CHARACTER ALIGNED WITH ITS ROW OF ANSWER-SPELLING LETTERS AND VISIBLE IN SAID REGISTRATION-INDICATOR APERTURE WHEN THE TEMPLATE IS IN THE PROPER POSITION FOR READING THE ANSWER.