Archive for June, 2009

Closing the Gap for Good

New research shows that gender disparity in math skills is due to culture, not biology

Photo courtesy of neuronarrative.wordpress.com/

For as long as girls and boys have been attending co-ed schools, there has been a perceived gender gap in mathematical abilities that has seemingly led to a deficit in the number of women who will go on to study higher levels of math and to pursue careers in mathematically-related fields. This has always been attributed to an innate biological tendency of men to have the capacity to excel at mathematical reasoning, a tendency that was assumed to be lacking in women. However, a recent report from researchers at the University of Wisconsin-Madison proposes that the reasons for this disparity are in fact purely cultural, suggesting that it may be possible for our society to lessen or even close the gap completely.

Photo courtesy of www.lovetoknow.com

Photo courtesy of www.lovetoknow.com

Janet Mertz and Janet Hyde, two Wisconsin professors, were puzzled by the fact that a gender disparity in math skills is not present in certain countries and cultures, particularly those in which a large degree of gender equality exists. In analyzing data from various tests and studies of male and female students at various educational levels, �the Wisconsin researchers document a pattern of performance that strongly suggests that the root of gender disparity in math can be pegged to changeable sociocultural factors. Such factors either discourage or encourage girls and young women in the pursuit of the skills required to master the mathematical sciences.� In other words, society is the cause for any and all disparities in skill level, and the commonly held belief that women are less capable in mathematics is a self-fulfilling prophesy.

Much of the evidence for the argument that boys are naturally inclined to be better at math stems from past studies that show greater variability in the skill levels of males, meaning that they are more likely to exhibit extremely high or extremely low skill levels in the subject. However, Mertz and Hyde prove in their research that this is not the case in some countries, several of which can boast of girls scoring in the 99th percentile in math skills at the same rate that boys do.

In the United States, girls are now performing on par with boys at all levels of math and are just as likely to choose advanced math classes in high school. Moreover, the gap is narrowing between the number of mathematically gifted boys and girls, suggesting that we are perhaps moving closer to achieving the results of those countries with a higher measure of gender equality. The number of female doctoral-level mathematics students has climbed to 30% from 5% in 1950, most likely a result of changing perceptions of the role of women in mathematical and scientific research.

Though hopeful, these results appear dim in comparison to statistics regarding gender disparities as well as overall mathematical skill level in other countries, particularly those of East Asia. Here, girls consistently reach the gifted level just as often as boys do, and both sexes exhibit median scores that are higher than those of the top ten percent of US students. In their report, Mertz and Hyde emphasized that �the future of the U.S. economy depends upon American society doing a better job of identifying and nurturing mathematically talented youth, regardless of gender, race or ethnicity.� Leaving women out of the equation will have devastating effects on the growth and development of the United States and will severely hinder our efforts at achieving global economic competitiveness with those countries which foster mathematical abilities in all their students.

For more information on this research, check out the article Culture, Not Biology, Underpins Math Gender Gap at ScienceDaily.com.

Related: Looking For Science And Engineering Talent In All The Right PlacesEnhancing Science, Technology, Engineering, and Math Education Act of 2008Senator Proposes Free College Tuition for Math and Science Majors Fun k-12 Science and Engineering Learning


KASPAR: The Friendly Robot

Image provided by the University of Hertfordshire

Image provided by the University of Hertfordshire


Meet KASPAR: A small, human-like robot designed to teach children with autism about social interaction. KASPAR stands for Kinesics and Synchronisation in Personal Assistant Robotics and was developed by the Adaptive Systems Research Group at the University of Hertfordshire.

According to the Adaptive Systems Research Group, the goal of the project is not to create a robot that is indistinguishable from a human, but rather to teach disabled children how to improve their playing and social interaction skills through a robotic toy:

“Our aim is to study what types of human-robot interactions a minimal set of expressive robot features can afford. The goal is not perfect realism, but optimal realism for rich interaction. KASPAR has 8 degrees of freedom in the head and neck and 6 in the arms and hands. The face is a silicon-rubber mask, which is supported on an aluminum frame. It has 2 DOF eyes fitted with video cameras, and a mouth capable of opening and smiling.”

For a demonstration of KASPAR’s abilities, please click on the video below:

Another interesting feature of KASPAR is the introduction of artificial skin. Researchers hope to install sensor technology in the robot’s skin, which may provide tactical feedback from areas of the robot’s body. This innovation is known as “Roboskin”:

The goal is to make the robot able to respond to different styles of how the children play with KASPAR in order to help the children to develop ‘socially appropriate’ playful interaction (e.g. not too aggressive) when interacting with the robot and other people.

Professor Kerstin Dautenhahn is currently leading a team of researchers at the University of Hertfordshire, who are working on developing the robot skin and embedded tactical sensors. Professor Dautenhahn explains, “Children with autism have problems with touch, often with either touching or being touched. The idea is to put skin on the robot as touch is a very important part of social development and communication and the tactile sensors will allow the robot to detect different types of touch and it can then encourage or discourage different approaches.

*For more information on KASPAR, please visit the original press release from the University of Hertfordshire.

*For a BBC news presentation on KASPAR, please click here.


Going Polar

Scientists Bundle Up and Come Together to Study Climate Change

Robotic mini submarines and seals sporting electronic tags may sound like images straight out of a science fiction film, but these are just two of the many projects completed by scientists as part of the 2007 International Polar Year. This collaborative project, which actually spans two years and covers two full annual cycles of both the Arctic and Antarctic regions, incorporates the work of thousands of scientists from over 60 nations and focuses on the study of the biological, physical and social effects of climate change on the polar regions.

Photo courtesy of Monterey Bay Aquarium Research Institute

Photo courtesy of Monterey Bay Aquarium Research Institute

The diverse array of projects focus on atmosphere, ice, land, oceans, people, and space, as well as the way in which these individual areas of study relate to global warming and to each other. In one experiment, a small submarine was sent on an undersea mission to track changes in ocean temperature and their effect on the West Antarctic Ice Sheet, a 2.2 million kilometer sheet of glacial ice that covers the western part of Antarctica. In another study, elephant seals were unknowingly given a mission of their own – they were equipped with special tags used to study their habits as well as to aid in climatic field research.

The main goal of IPY is to draw attention to the urgency of climate change by demonstrating its effects on the environment as well as on society. These consequences are both direct (as in the decomposition of permafrost in the northern hemisphere) and indirect (as in changes to the food systems of inhabitants of Arctic communities), but all are drastically important to the functioning of our planet as whole in addition to that of its polar regions.

The 2007 IPY, which was the fourth of its kind, finished up in the spring of 2009. For more information, check out the International Polar Year web site.

Read: Remote Environmental Monitoring Units: Mapping the Bottom of Sandy Hook Bay, Underwater Robot Competition Generating Interest Among Students, Geoengineering is Cool!


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