Compare and contrast - Don't ask questions
Scott McLeod, J.D., Ph.D., is an Associate Professor of Educational Leadership at the University of Kentucky. He also is the Founding Director of the UCEA Center for the Advanced Study of Technology Leadership in Education (CASTLE), the nation’s only academic center dedicated to the technology needs of school administrators, and was a co-creator of the wildly popular video series, Did You Know? (Shift Happens). He has received numerous national awards for his technology leadership work, including recognitions from the cable industry, Phi Delta Kappa, and the National School Boards Association. In Spring 2011 he was a Visiting Canterbury Fellow at the University of Canterbury in New Zealand. Dr. McLeod blogs regularly about technology leadership issues at Dangerously Irrelevant and Mind Dump, and occasionally at The Huffington Post. He can be reached at scottmcleod.net.
Postman & Weingartner (1968, p. 23) noted:
Knowledge is produced in response to questions. And new knowledge results from the asking of new questions; quite often new questions about old questions. Here is the point: Once you have learned how to ask questions - relevant and appropriate and substantial questions - you have learned how to learn and no one can keep you from learning whatever you want or need to know. . . . The most important intellectual ability man has yet developed -?? the art and science of asking questions -?? is not taught in school! Moreover it is not "??taught" in the most devastating way possible: by arranging the environment so that significant question asking is not valued.
In the news this week, a teacher may get fired because his students thought and acted independently?
More than 160 students in six different classes at Intermediate School 318 in the South Bronx - virtually the entire eighth grade - refused to take last Wednesday's three-hour practice exam for next month's statewide social studies test. Instead, the students handed in blank exams. Then they submitted signed petitions with a list of grievances to school Principal Maria Lopez and the Department of Education. . . . School administrators blamed the boycott on a 30-year-old probationary social studies teacher, Douglas Avella. . . . A few days later, in a reprimand letter, Lopez accused Avella of initiating the boycott and taking "actions [that] caused a riot at the school." . . . "They're saying Mr. Avella made us do this," said Johnny Cruz, 15, another boycott leader. "They don't think we have brains of our own, like we're robots. We students wanted to make this statement. The school is oppressing us too much with all these tests."
SpaceX plans to launch about 12,000 internet-providing satellites into orbit over the next six years.
- SpaceX plans to launch 1,600 satellites over the next few years, and to complete its full network over the next six.
- Blanketing the globe with wireless internet-providing satellites could have big implications for financial institutions and people in rural areas.
- Some are concerned about the proliferation of space debris in Earth's orbit.
Protected animals are feared to be headed for the black market.
Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.
- There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
- CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
- Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
- Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.
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