Patent ID: 8480400

Claim:
A reading teaching kit comprising: a) a substantially rigid frame of rectangular configuration elongated between opposed open and closed end members and having an open interior region defined by said end members and parallel upper and lower struts, each strut being an extruded plastic form having two parallel grooves which open toward said interior region in facing opposition to constitute upper and lower track means, b) an obscuring panel comprised of a thin elongated strip of plastic material slidably secured within said interior region and bounded by forward and rearward ends and elongated upper and lower parallel edges positioned to slidably engage said upper track means, said forward end having abutment means to interact with the open end member of said frame to prevent removal of said panel from said frame, and said rearward end having gripping means to facilitate manual movement of said panel to adjustable positions of entry into said interior region, and c) several removable window panels of thin plastic material dimensioned and configured to enter said interior region through said open end member in sliding engagement with said lower track means, said window panels each having an elongated substantially rectangular aperture which centers within said interior region and having a height between 7 and 15 millimeters and a length of 6 to 9 inches.