The Contribution Both we importantssimos for the development of the individual. The individual must be analyzed taking in account both levels, without, as one becomes normally, prioritizing one of them. The conquests that already if find consolidated in the child, the functions or capacities that it already learned and dominates, therefore already obtain to use alone, are part of ' ' development level real' ' that it indicates the mental processes of the child that already had been established, or cycles of development that already had been completed. This level if relates to the activities and tasks that the child already knows to make of independent form, a level of established development already, ' ' the development retrospectivo' '. The example of the previous one, we have ' ' development level potencial' ' that also she mentions yourself what the child is capable to make, however, with the aid of another person. In this level the child carries through tasks and solves problems through the dialogue, of the contribution, the imitation, the experience shared and of tracks that are supplied to it. This level is for Vygotsky (1984), well more indicative of its mental development of what what it obtains to make alone. In the distance between what it can make alone, of independent form and what it carries through in contribution with other elements of its social group it characterizes what Vygotsky called of ' ' zone of potential development or proximal' ' (ZDP). Thus, the development of the child is seen of form ' ' prospectiva' '. This because the proper Vygotsky (1984, P. 97) affirms: The zone of proximal development defines those functions that had not yet ripened, that they are in maturation process, functions that will ripen, but that are gifts in embryonic state. These functions could be...
Portland Concrete Such coverage is flexible in temperatures from -50 to 100 degrees, and is resistant to UV radiation and micro-organisms. All of these qualities produce a building material - paste. And if you need a way of waterproofing, your choice - mastic. Book and do not regret it. Putty Dry mixes - this improvement is already developed. Dry mixes are designed universal mounting-masonry, plastering, glue, putty, waterproofing, as well as grout and mix for unit of the sexes. The plaster is dry mixture, for example, is produced from Portland cement, dry quartz sand (dual flush), with the addition of mineral and organic plasticizers, double the material properties. The plaster is dry mixture and creates a cement-lime-sand and cement and sand. The first is used for plastering the surface of aerated concrete, concrete foundations, masonry building facades, as well as for interior in the dry and wet areas. The second - for plastering surfaces when applied to any solid foundation (brick, concrete, etc.) inside and outside buildings to correct the facial surfaces construction of residential and public buildings. Universal dry mixes used for plastering walls and ceilings before painting, puttying, adhesive wallpaper, etc. Installation and Mason used to perform masonry work, concreting stairs, floors, corrections and sealing of concrete walls, joints handling during installation indoors and outdoors. To operate at low temperatures on the order you will create a dry mix with hardy additives. Think and decide what mix you need for your repair. Cost-effective solutions upgraded designs using URSA product can not only develop a high level of comfort in buildings, but also significantly reduce heating costs.

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