Printed training or educational aid, for use in a variety of tests, has four columns to be folded over to give spaces for inserted paper strips to give room for test answers and be used repeatedly

摘要

The printed training or educational aid is a sheet, carrying numbers or letter characters or words, which are covered or can be covered. The material is in a number of lines, over four columns (1-4), so that the sheet can be folded over with the columns to the inside. The folding action gives gaps, where paper strips can be inserted and removed. When folded over, the printed lines in the second and fourth columns are aligned, with a control space in the first column. The third column provides a gap between the second and fourth columns.