| 摘要 |
FIELD: agriculture.SUBSTANCE: demonstration means comprises volumetric visual model representing a multilayer tube from A4 paper sheet, imitating the tube of pollen grain, which is attached to the transparent container which imitates the ovary of a flower, and a set of cubes of different colours; two of them of the same colour are connected to each other and imitate the central core, and the third cube of different colour is located separately, imitating the egg; and in the tube there are models of plant cells in the form of two separate cubes of the same colour, different in the colour from the cubes imitating the central core and the egg, which move freely inside the container for creating imitation of the formation of triploid endosperm and diploid germ.EFFECT: improvement of quality of teaching and learning the training material on cytology, illustrates visually the process of fertilisation in higher plants, develops visual thinking, and easy in design and assembly.1 dwg |
