February 27, 2009
Lake Ontario Trends
The Rochester Democrat and Chronicle reported on Monday that Lake Ontario is now 8 inches higher than it was last year at this time. The number, reported by the U.S. Army Corps. of Engineers, is the third highest increase seen in one of the Great Lakes behind Michigan and Huron both tied at 1 foot.
What does the rise in level mean for the Great Lakes?
While excessive rising of the water level may cause flooding and higher rates of erosion, a moderate level provides routes for “commercial navigation, recreational boating, marinas, beaches, fishing, cottage and homeowners, and the aquatic ecosystem.”  While Lake Ontario’s levels are indeed increasing, they are doing so at a healthy rate… hardly to the extent as the highs of the mid 1980’s or the lows caused by El Nina in the late 1990’s.
The Great Lakes provide rich learning experiences for local students… does your class use Lake Ontario or any of the local streams to explore environmental trends?
1. National Oceanic and Atmospheric Administration
February 25, 2009
You might have heard about the recent space collision… the one where two satellites crashed, creating “hundreds if not thousands of pieces of tracked debris”. One satellite was a functional communications satellite in an orbital flock of 65. The other, was a defunct satellite launched in 1993 by Russia. The combined result of the collision is debris in excess of three thousand pounds.
What happens with this space junk? The pieces that stay in orbit, will pick up considerable force, and pose a threat to other satellites. According to cnn.com, a 1/10 inch piece of debris in Earth’s orbit will have the comparable force of a bowling ball traveling at 60 mph. Given the increase in space traffic , how likely is it that similar collisions will occur on a more regular basis?
Here are some quick facts:
- Our highest-flying satellites hang in space at about 22,000 miles (1/10th the distance to the moon)
- The lowest-flying satellites hang in space at about 100 miles (also known as a Low Earth Orbit -LEO)
- The accepted formula used to find the volume of a sphere is:
- There are currently at least 17,000 objects measuring 4 in. or greater circling the Earth
- 200,000 objects in the 1-in.-to-3-in. range
- tens of millions smaller than an inch
Given this information, what do you think the chances are of another collision happening within the next year? When responding, please describe the steps you took to solve the problem… we’re interested in learning from each other.
1. cnn.com http://www.time.com/time/health/article/0,8599,1879241,00.html
February 24, 2009
Comet Lulin is visible in our sky this week. It’s passing “close” to the planet Saturn and the star Regulus in the constellation Leo. An article by Nancy Atkinson helps you find it in the sky. The article mentions that you can see it with good binoculars.
Here in the Rochester area we might have a small window of opportunity to see it tonight, Wednesday or Saturday night (based on the weather forecast on weather.com).
February 23, 2009
How I'm trying to change the world NOW
A few weeks ago, great thinkers from around the world converged at Palm Springs, FL for the annual TED conference. Bill Gates was one of this year’s keynote speakers, posing two questions to the audience:
How do you stop a deadly disease that’s spread by mosquitoes?
How do you make a teacher great?
His first question focused on the historical evolution of human genetics to adapt to and overcome diseases transmitted by mosquitoes. Gates also focused on the economic distribution of countries who have successfully dealt with malaria. He calls on the collaboration of communicators, social scientists, mathematicians, drug companies, and world governments to provide the road map and tools for recovery.
Secondly, Gates’ focus on teaching excellence called for the development of a strong system of teacher recognition. He proposes that testing data, and video analysis be used to recognize and reward good teachers. According to Bill Gates, top teachers increase the performance of their students by 10% each year. Teachers need to be told how good they are! He praised a system of education called “KIPP” and recommended the book “Work Hard. Be Nice.” by Jay Matthews.
If you know a great teacher that should be recognized for their work, please consider nominating them for RAC-CEMS’ Excellence in STEM Teaching Award. The next round of nominations will be reviewed the second week of April, and the award winner will be announced on April 18th.
February 20, 2009
Microsoft Corp. wants to find out if non-educational video games improve learning skills and higher-order cognitive capability. They want to find out if fun, not-so-violent video games can get students interested in STEM. Research by the University of Wisconsin has found that playing “World of Warcraft” encourages scientific thinking. In some games you have to track your supplies, life meter, etc. and analyze to then decide what you need to do to survive and be successful. Those games where you have to strategize are usually war related.
If there were fun, not-so violent games out there that indirectly taught children and youth problem solving and analyzing skills and encouraged them to go into STEM related fields, would you recommend them? would you buy them for your children?
What do you think about this?
Link to article
February 15, 2009
Based on a report: Taking science to school: Learning and teaching science in grades K-8 by the Committee on Science Learning, Kindergarten Through Eighth Grade, students need to acquire specific knowledge and skills, participate in certain practices and become fluent in them to be considered proficient in science.
The report says:
“Students who are proficient in science:
1. know, use, and interpret scientific explanations of the natural world;
2. generate and evaluate scientific evidence and explanations;
3. understand the nature and development of scientific knowledge; and
4. participate productively in scientific practices and discourse.”
It then continues saying that these strands of scientific proficiency are not independent of each other. They’re intertwined. The report explains each one in detail and provides recommendations of how to improve science education in grades K-8.
Link to the report
February 11, 2009
Underthemicroscope.com is a new website aimed at supporting and inspiring young women who want to get into STEM related fields. Its mission statement is very similar to ours. Under the microscope also seeks to become a social networking website for students, working scientists, teachers, counselors, and parents.
One of the main tabs in the website is the inspiring stories of women in STEM fields. You can share your story with them to help inspire new generations into following your steps. I read some of the stories and most of them praise one or more of their secondary grade teachers as being some of the first people that inspired them to pursue a STEM related career. It also goes to show that effective teaching has the great reward of knowing that students are able to follow their dreams or continue developing skills that they learned in high school.
I hope you find this website useful for you, your students, and/or your children.