Educational work in the form of a book to flap.

摘要

The booklet, e.g. for learning or revising facts and figures, consists of a cover with a central hinge for a series of pages (18,19) and two flaps (13,14) attached to the cover's outer edges. Each page has a small upper section (a,b) with a question or title relating to the facts contained in a larger lower section (A,B) and each of the flaps (13,14) is made so that it covers only the lower section when folded over a page. The booklet is used by opening it at the required page, covering the lower section of the page with the flap, and attempting to answer the question or list the facts required in the upper section. The lower section can then be uncovered to check the result.