It would be done in such a way as to respond to each student's needs rather than being presented as one-size-fits-all assistance-for example, by assigning the same (scaffolded) task to everyone.It would allow for the possibility of collaboration among students rather than assuming each must eventually complete all tasks alone.It would offer support for the learner's own goals, not just a technique for propelling her up an adult's ladder.So what would a better version look like? Tubular hoisting towers may be quickly assembled from steel tubes or pipes about 3 inches (8 cm) in diameter with standard connections.Of course, scaffolding could be defined differently, in which case we needn't dispense with the word or the practice as long as we were careful to explain what we meant. The scaffolding may be enclosed with canvas or plastic sheeting for protection against the weather. Sections may be mounted on casters to provide a highly mobile staging. Tubular scaffolding can easily be erected in any shape, length, or height. Tubular scaffolding of steel or aluminum has largely replaced timber scaffolding on most construction projects. Specially designed trestles may be adjusted to provide for working heights of from 7 to 18 feet (2 to 5 m). The trestles may be of special design or simply wooden sawhorses of the type used by carpenters. Trestle supports are used for work on a large area if little or no adjustment of height is required ( e.g., for plastering the ceiling of a room). The planks rest on the transverse members. The frame may consist of vertical posts, horizontal longitudinal members, called ledgers, transverse members supported by the ledgers, and longitudinal and transverse cross-bracing. In timber scaffolding, support for the planks is provided by a timber frame fabricated and erected at the site. Scaffold, in building construction, temporary platform used to elevate and support workers and materials during the construction, repair, or cleaning of a structure or machine it consists of one or more planks of convenient size and length, with various methods of support, depending on the form and use. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.
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