Learning contents control device, has table to temporarily fix answer, which is guided to carrier such that answer lies parallel to area of sheets and is able to move opposite to sheets parallel to area and anti parallel to space direction
摘要
<p>The device has an information carrier with a set of sheets (2) on which information are laminar represented in the form of task and answer fields (4, 5). A table (14) is provided to cover the fields and temporarily fix an answer (16). The answer is guided to the carrier such that the answer lies parallel to the base area of the sheets and is able to relatively move opposite to the sheets parallel to the base area and anti parallel to a space direction.</p>
