1. An educational toy which comprises a first set of windows and a second set of windows, a first set of keys selectively operable to cause one of a plurality of first images to be displayed in the respective one of the windows in the first set and to cause a simultaneous display of an associated one of a plurality of second images in the second set of windows for a predetermined length of time, a second set of keys, each having as a label a respective one of said second images and selectively operable at the end of the said predetermined length of time, and means for indicating correspondence and non-correspondence between the label of the selected key of the second set and the image displayed in the window of the said first set.
1. An educational toy which comprises a first set of windows and a second set of windows, a first set of keys selectively operable to cause one of a plurality of first images to be displayed in the respective one of the windows in the first set and to cause a simultaneous display of an associated one of a plurality of second images in the second set of windows for a predetermined length of time, a second set of keys, each having as a label a respective one of said second images and selectively operable at the end of the said predetermined length of time, and means for indicating correspondence and non-correspondence between the label of the selected key of the second set and the image displayed in the window of the said first set. 5. An educational toy as claimed in claim 1, wherein the means for indicating correspondence and non-correspondence includes means for producing an audible sound.