Abstract: This invention provides the user with immediate feedback as to the correctness or incorrectness of their respones to multiple choice, true - false, and cross matching questions by the use of a hand held electric probe that produces a magnetic field; where said magnetic field is picked up by at least one of the linear electroconductive elements in each of two sets of electroconductive elements. These two sets of electroconductive elements are arranged one immediately above the other in two parallel planes that are located immediately beneath a holding frame that accurately positions instructional sheets on its upper surface. Located on the instructional sheets are answer response areas that immediately overly some of the points where one strip in the top set passes over one of the strips in the bottom set of electroconductive elements. When the user believes that he has found a correct answer, he places the electric probe over that response area on the instructional sheet.

Abstract: This invention is an input device that enables the user to take symbol sequences such as whole words, phrases, sentences, paragraphs, or other multi-symbol sequences from a computer's memory and have these symbol sequences printed out or displayed by some other means such as a computer monitor. This invention uses a grid of points of switch closure, where each point is identified by an alphanumeric or other code; and where each point of switch closure can be individually activated by the user. Printed sheets of material are accurately positioned over this grid of switch closure points. Printed on these sheets of material are: 1, symbol sequences; and 2, response areas adjacent to each symbol sequence. Each response area lies over one of the switch closure points.

Abstract: This invention provides students with immediate feedback as to the correctness of their responses by closing switches at two different depths. A holding frame aligns six sheets in layers, one above another. Holes that are punched through some of the six sheets of material are all aligned on the same grid pattern. The top sheet is an instructional sheet that has response areas punched in it at the site of correct and incorrect answers. The second sheet down contains no holes, is elastic and electroconductive, and hides the depth of the underlying holes from the student. The third sheet down is non-conductive and has the entire grid of holes punched in it. The fourth sheet down is electroconductive, and has holes punched in it only at correct answer areas. The fifth sheet down is non-conductive and has holes punched in it only at correct answer areas. The sixth sheet down is non-conductive, but contains electroconductive inserts at all correct answer areas.

Abstract: This invention uses preprinted instructional sheets that contain multiple questions, a plurality of answer choices, and response areas adjacent to answer areas. Underlying said instructional sheets are two sheets of electroresistive film, one sheet being positioned above the other; said sheets are usually not in contact with each other except at the times and the locations when downward pressure is exerted on a response area on an overlying instructional sheet. Along one vertical margin of one resistive sheet is a conductive strip. Along one horizontal margin of the second resistive sheet is a conductive strip. The different response areas on the instructional sheets are located in a grid pattern with X and Y coordinates paralleling the X and Y coordinates of the conductive strips on the resistive sheets.

Abstract: This invention provides students with immediate feedback as to the correctness of their responses by closing electrical switches at two different depths. A holding frame aligns six different sheets in layers, one below the other. The top sheet is an instructional sheet that contains printed questions and answers, and response areas near each answer choice. The second and fifth sheets are elastic and electroconductive and are connected to an electric power source. The third and sixth sheets are nonconductive and contain a grid of through holes. The fourth sheet is elastic and nonconductive, but has strips of elastic and electroconductive material bonded to its upper surface. Other electroconductive strips, at a 90.degree. axis with the above strips, are bonded to the bottom surface, the holding frame. Each individual electroconductive strip is linked to a computer via a switch relay.

Abstract: This invention provides immediate feedback to students as to their correct and incorrect responses by the incorporation of: a computer; electronic visual and/or audio feedback means; and a holding frame that contains a printed instructional sheet that is located above two sets of electroconductive strips, where the first set is located at a 90.degree. axis with the second set, and overlies the second set in a different but parallel plane. The centers of the conductive strips form the vertical and horizontal coordinates of a grid pattern. The instructional sheets contain response areas that are located above some of the points of intersection of the coordinates in this grid. Each strip in the two sets of conductive strips is connected to the computer, and the computer is programmed to know which points of intersection are correct response areas and which are incorrect response areas. At least one set of conductive strips is flexible or elastic.

Abstract: An instructional apparatus is disclosed comprising a holding frame having a grid of shallow and deep depressions or holes, the bottoms of which are defined by electrical contacts; a printed instructional format that contains circular response areas or zones that are precisely located over some of the shallow and deep depressions when the format is properly positioned on top of the holding frame; an electroconductive stylus with a cone shaped tip; a punching sheet that is sandwiched between the printed format and the holding frame and that obscures the depth of the underlying shallow and deep depressions from the student; and the necessary electrical components and connections to register and indicate when the tip of the stylus completes an electrical circuit by contacting the electroconductive contact material in the bottom of each shallow and deep depression.