| 摘要 |
This teaching aid can be applied during three-dimensional task solving. It consists of a tube and rod material assembled into the form of a three-dimensional body. Its principle consists in the fact that the body (10) is composed of at least six tubes (1) equipped with six transversal openings (5) whose ends are arranged in ball structures (2). In the ball structures (2), mainly in the direction of the tube axes, there are through holes (3) with a diameter smaller than the outer diameter of the tubes (1). In the tubes (1) and in the through holes (3) there may be rods (4) and the body (10) can be equipped with transparent walls (7) and holes (8). In the transversal openings (5) holes (8) and through holes (3) there are pins (6) to which rubber eyes (9) plastic rods (11) and triangular plates (13) are fixed.<IMAGE>
|
