Alberto is learning algebra. His teacher provides him with classroom instruction and algebra problems to work on at home. The te
acher also solves problems with the class showing the students each step in the process of solving the algebra problem. When concepts are new, the teacher interacts often with Alberto and his classmates, showing them how to perform algebraic operations, giving subtle hints, asking leading questions, and making suggestions. As Alberto becomes more competent in his new skills, his teacher begins to back off, allowing him to work with increasing independence. Alberto's teacher has used the constructivist principle of
Scaffolding is done when a student is provided with enough support to complete a task until competence is achieved. Support is gradually decreased until the student becomes able to work independently.
he first-past-the-post, winner-takes-all system, which is used for every election in the USA - federal, state and local - makes life difficult for third parties.
One of the major effect of this railroad during the Industrial Revolution was
Train Vision- Trains have drassictly changed change the way we persive this world. Napoleon crossed the Alps in may 1800 at much the same speed as Hannibal: the fastest way of traviling was using galloping horses. But by 1840, rail passengers we moving at terrifying speeds up to 60 miles per hour, experiencing for the first time phonomenal "optical flow".
