A teaching device, for use in a classroom, comprising a hand-held size calculator adapted to normally include a display for showing the numerical output of the calculator, and adapted to include a face plate having a plurality of keys which are arranged in a particular pattern and which bear indicia indicating the calculator function of the keys. The calculator does include a circuit for producing a signal in response to depression of the face plate keys of the hand-held size calculator. The teaching device further includes an enlarged keyboard including a plurality of enlarged keys arranged in a key pattern simulating the face plate keys of the hand-held size calculator, and indicia on the enlarged keys simulating the indicia on the faceplate keys of the hand-held size calculator. The indicia is readily readable anywhere within the classroom. The keyboard also includes a plurality of switches responsive to depression of the keyboard keys. The teaching device also includes wiring for operably connecting the keyboard switches to the signal producing circuit so that the keyboard switches operate the calculator in the same manner as the face plate keys of the hand-held size calculator. The teaching device also includes an enlarged display including numerical characters readily readable anywhere within the classroom, and an interface circuit for operably connecting the enlarged numerical display to the signal producing circuit so that the enlarged display shows the numerical output of the calculator.
The present invention comprises an electronic learning game that provides a plurality of pedagogical and instructional modalities which combine strong kinesthetic, auditory, and visual stimulation to assist a child to learn basic arithmetical concepts. The inventive game utilizes a combination of voice statements, rhythmic music, a visual display, and manual inputs from number dials and a response switch to achieve multi-modal learning or arithmetic concepts. The ergonometric size and structure of the present invention promotes a strong kinesthetic learning modality.
A hand-held calculator for use in conducting classroom demonstrations of the operation thereof, including use of the operation instruction key means. The calculator comprises a frame, a keyboard section, data processing means and a display section and where both the keyboard and display sections are transparent to permit images thereof to be projected on a screen for teaching purposes.
An optically linked calculator system for displaying data generated by a local calculator at both the local calculator and at a detached display. The calculator system includes a plurality of transmitting calculators and receiving units. The receiving units include remote display receiving units and receiving calculators. Transmitting calculators transmit entered data and calculated results. Receiving units receive and display transmitted data entries and calculated results. A calculator includes a keyboard, keyboard logic, processing logic, display, display logic, transmit logic, infrared transmitter, switching means, infrared receiver receiver logic and converting logic. The switching means selectively enables components of the calculator for effecting a transmit mode, receive mode, and calculate mode. The remote receiver display unit includes an infrared receiver, data detection logic, processing logic, and a display.
