Diane Ravitch: 3 dubious uses of tech in schools
New devices can both inspire creativity and dehumanize learning
This article was originally published by Scientific American.
Technology is transforming American education, for good and for ill. The good comes from the ingenious ways that teachers encourage their students to engage in science projects, learn about history by seeing the events for themselves and explore their own ideas on the Internet. There are literally thousands of Internet-savvy teachers who regularly exchange ideas about enlivening classrooms to heighten student engagement in learning.The ill comes in many insidious forms.
One of the malign manifestations of the new technology is for-profit online charter schools, sometimes called virtual academies. These K–12 schools recruit heavily and spend many millions of taxpayer dollars on advertising. They typically collect state tuition for each student, which is removed from the local public schools’ budget. They claim to offer customized, personalized education, but that’s just rhetoric. They have high dropout rates, low test scores and low graduation rates. Some have annual attrition rates of 50 percent. But so long as the virtual schools keep luring new students, they are very profitable for their owners and investors.
Another dubious use of technology is to grade essays. Major testing companies such as Pearson and McGraw-Hill are using software to score written test answers. Machines can grade faster than teachers, but they cannot evaluate factual statements or the imaginative use of language. A student may write that the World War II began in 1839, and the machine won’t object. Students will learn to write according to the formula that the machine likes, at the expense of accuracy, creativity and imagination. Worse, the teacher will abandon the important job of reading what his or her students write and will be less informed about how they think. That is a loss for the quality of education. Frankly, it is a problem with online assessment in general, as the job of testing is shifted from the teacher to a distant corporation; the last round of state testing saw computer
