Patents Assigned to Christopher Boettger
  • Patent number: 4377383
    Abstract: Teaching apparatus enabling a reviewer to review items of information to be learned by the reviewer in accordance with a prescribed routine of repetitive review of a plurality of information-bearing slips so that the review of unlearned items is more frequent than the review of learned items, the apparatus including a plurality of classification cards defining grades and classes within the grades, a tablet in the form of a board having delineated areas for separating the slips into groups which will be reviewed more frequently or less frequently, depending upon whether or not the item carried by a slip is known at the time of a particular review, and a holder for the slips, the holder being capable of holding a group of slips in a stack of variable height and enabling sequential review and removal of each slip from the stack of slips for placement on the tablet.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: March 22, 1983
    Assignee: Christopher Boettger
    Inventor: John S. Meyers