Phones and computers contain dangerous metals like lead, cadmium and mercury, which can contaminate the air and water when those products are dumped. It's called electronic waste, or e-waste, and the world produces a lot of it: 20 to 50 million tons a year, according to the UN — enough to load a train that would stretch around the world. The U.S. is by far the world's top producer of e-waste, but much of it ends up elsewhere — specifically, in developing nations like China, India and Nigeria, to which rich countries have been shipping garbage for years.
Vicki Davis on 30 Dec 11Overview of the use of efolios in the Expository Writing course at the University of Washington. along with some sample portfolios. Currently the electronic portfolios are optional although having a portfolio is not. "The six TAs who chose to teach with electronic portfolios discovered many advantages to introducing this technology. They found that students learned to write for a wider audience and were able to better connect to the course outcomes by showing a greater variety of examples such as graphics and links to relevant Web pages. The electronic portfolios also simplified some logistics, allowing the instructors to easily show examples of online portfolios and students to review each other's work. "
