A Distance learning is not a recent innovation in education, correspondence courses having been used for over 150 years, but new interactive technologies are providing new opportunities and strategies for teaching at a distance. Several studies have compared face-to-face classrooms to distance classrooms in order to evaluate differences in student performance and quality of instruction. A meta-analysis of these studies showed that distance-learning students performed equally well and some distance courses outperformed their classroom counterparts.

This result has been consistent over many studies across many disciplines; advances in communication technology and innovative methods of delivery of instruction at a distance have challenged the idea that laboratory courses can only be delivered in a face-to-face laboratory setting. In engineering, for example, virtual laboratories have been used to teach thermodynamics, electronic circuits, and other experimental courses as well. Programmes in nursing, engineering, technology and other sciences are beginning to use different technologies and innovative methods to deliver courses via distance-learning methodology in order to reach students in different locations and boost enrolment. A survey of online distance-learning programmes revealed a large increase in student enrolment. The availability of distance courses has made it possible for some people to attend college because courses are accessible within their locality or the time of course delivery is convenient for them.

This opportunity for learning has not been without its critics who keep a close eye on the quality of instruction, and rightly so as with any form of instructional delivery. Quality issues are a major concern for those who intend to pursue degree programmes via distance learning, especially with the proliferation of distance-learning programmes. Although it is difficult for academics to agree on specific standards that constitute quality in distance learning, nonetheless, attributes such as accreditation standards for programmes, evaluating students' experiences, teacher-student interaction, student-to-student interaction, learning resources for the learner, learner assessment and performance, instructional resources for faculty, faculty training, and learner satisfaction are valid criteria. These and many other factors can determine the quality of delivery of instruction in both distance and face-to-face classrooms.

B Distance-Learning Technologies and Innovation in Laboratory Course Delivery

In a selected UK university, five departments that offered laboratory courses in Technology and Engineering via distance learning used combinations of a variety of instructional technologies. The technologies most used were Interactive Microwave TV (two-way audio and video), compressed video, the Internet, CDs, computer software (virtual software), and video tapes. At the selected university in the UK, interviews were conducted on-site with faculty and staff. A wide range of teaching materials, student portfolios, and a secure website were observed. In addition to the Internet, CDs, and video, the university used the following innovative ways to deliver laboratory courses.

Residential and Summer Schools

Residential and summer schools serve a similar purpose; the difference is the duration. The summer school is one week long and combines labs, lectures, and problem sessions. In general, these schools provide four key features, providing the opportunity for students to:

1. undertake experimental work considered too hazardous for a student working at home.

2. undertake lab work using more sophisticated equipment, or equipment too expensive to provide at home.

3. undertake assessed lab work.

4. work together with fellow students.

Some courses even arranged to take students on a study trip, perhaps to a company with special processes, or to a geographic site of interest.

C Demonstration Laboratory

The demonstration laboratory introduces students to the work they are going to undertake, illustrating how to proceed, how to make particular types of measurements, etc. It also covers topics considered too dangerous for students or situations in which the equipment is not available at the residential school. Many of these demonstrations are recorded on video to control both the process taught and the quality of the teaching across numerous groups of students at different levels.

D Support Services Provided to Faculty and Students Engaged in Distance Learning

All the departments that offer distance-learning courses offer support services to students and faculty. The support services include e-mail systems, graduate assistants, course websites, proctors, telephone conferencing, electronic library materials, and instructional designers to work with faculty to design and develop courses. At the selected university in the UK, interviews with instructional designers and faculty revealed the significant role played by instructional designers. Although they are not the content experts, they advise faculty, for example, on how information is presented on a website or the format in which the information is presented. The purpose is to maintain a standard format and quality in print materials, including electronic resources. The selected university in the UK also provides a support service to faculty that is unique from other institutions in this study: staff tutors who are regionally based to provide the link between the university faculty and students within the regions. The staff tutors have a key role in quality assurance, especially in facilitating effective teaching of the university faculty's courses, and are responsible for the selection, monitoring, and development of part-time Associate Lecturers. They contribute to faculty research and the development and presentation of courses. The staff tutors are highly qualified in their fields, and as such, bridge the distance gap between the university faculty and students at different locations.

E The UK university, by using innovative strategies such as the Residential and Summer Schools, Field Trips and Demonstration Laboratories in combination with new technologies, is able to teach all its laboratory courses via distance learning to its nearly 200,000 students within and outside the UK. Distance learning is not meant to replace a face-to-face classroom, but it is one major way to make education more accessible to society. As advances in communication and digital technology continue, residential or demonstration labs may someday be replaced with comparable experiences provided through distance education

Latchkey child was a term coined to describe children who wore or carried house keys to school so that they could let themselves into their home when they returned from school. The term came into use during the Second World War, when fathers had gone off to war, and mothers had gone into industry, making the tanks, planes, uniforms and bullets the soldiers needed. The children went home with keys on chains, ribbons or a piece of string tied around their necks. Some mothers chose to work the night shift, called the "swing shift", and tucked their children into bed, locked the door and went to the factory. The country’s response was prompt and comprehensive. Programmes were set up in factories, in schools and community centres, to gather in all the children whose parents were busy with the war effort. These programmes closed promptly when the war ended, and women resumed their roles as housewives. More than sixty years on, there are large numbers of working mothers, but unlike in wartime, the country isn’t organised to care for their children.

Sadly, finding young children at home without adult supervision has become much loo commonplace. Latchkey children were once found only among the lower classes, but the situation has gradually spread to the middle and upper classes. The same is true of adolescent violence. In the past, shootings and stabbings were associated primarily with inner city, or poverty stricken areas permeated with abusive families and neglectful schools. However, in recent limes, the “teen violence” epidemic has penetrated society at every economic level. An increase in the number of working mothers, as well as single-parent families, combined with a decrease in extended families that once helped with childcare, has contributed to the growing ranks of latchkey kids.

According to one census, one-third of all school-age children in the United States are, for some part of the week, latchkey kids, that is, they go home to an empty house or apartment. The total number may be between five and seven million children between five and thirteen years old. Marian Wright Edelman, the director of the Children’s Defence Fund, thinks it’s close to 16 million children. The Census Bureau found that 15% were home alone before school, 76% after school and 9% at night. Presumably, the 9% have parents who work night shifts.

One-half of all children in the country aged 12 to 14 are home alone for an average of seven hours a week. The very poor in America arc less likely to leave their children alone at home, or allow them to go home alone, than families who earn twice their level of income. This is probably because the very poor live in less safe neighbourhoods, and have fewer friends or family who can step in, in case of emergency. In spite of the hours spent on the job, working mothers spend an average of five-and-a-half hours a day with their children.

When latchkey children are functioning well, we don’t hear about them. But we do hear about the one-third of all complaints to child welfare agencies which involve latchkey children. We know about the 51% who are doing poorly in school. Most teachers believe that being alone at home is the number one cause of school failure. The afternoon hours are the peak time for juvenile crime. In the last 11 years, juvenile crime has increased 48%. The Carnegie Council on Adolescent Development found that 8th graders who are alone 11 hours a week are twice as likely to abuse drugs as adolescents who are busy after school.

Unsupervised children are more likely to become depressed, smoke cigarettes and marijuana and drink alcohol. They are also more likely to be the victims of crimes. When home alone, latchkey children generally watch television, eat snacks, play with pets and fight with siblings.

Adolescents who fall under the classification of latchkey children are more likely than others of the same age group to experience feelings of rage and isolation and to express those emotions in a physically aggressive manner. While there are certainly genetic and biological factors involved in the development of an adolescent’s propensity towards acting out their feelings of rage and isolation, environment also plays a key role in this arena. Sociologists have found that many latchkey children, because they are frequently raised in dysfunctional families, are taught by example to be manipulative, secretive and unpredictable. They often instinctively develop a sense of timing and management of their emotions. These are skills that can be easily and directly used to portray a false picture of themselves and their living situation.

Making the decision: When is a child ready to be home alone? Personality characteristics, skills, and maturity are useful criteria for determining a child’s readiness to be home alone. Personality doesn’t generally change much with age, although children can learn to modify some of their reactions as they learn what is expected of them. There are some children who find it very difficult to be alone, some who need time and gradual exposure to become accustomed to being by themselves, and some who adapt easily.

The personality characteristics of the child who is ready to be home alone is a child who

- is not fearful, feels at ease in the world and is self-confident

- is calm, and is not excitable when something unexpected happens

- is outgoing and talks about his or her feelings and thoughts readily with parents and others

- admits wrongdoing, even when expecting disapproval

- has courage enough to resist pressure from friends and others.

In many communities there are activities for school-age children whose parents work and cannot be at home in the afternoon. The importance of looking into these is stressed by child development professionals. According to James Comer of Yale University, "the period between 10 and 15 years is a time when young people re-examine their attitudes and values. They are being pressured by peers. They need to be protected by responsible adults who will help them examine and counter some of these attitudes."

The activities available vary as does the cost. Some are more popular with children than others, and some are more rewarding, but all are preferable to sitting at home in front of the television. These programmes can vary in cost or are free, depending upon the particular activity and the age of the child. All of them offer the opportunity to acquire skills and knowledge that are useful throughout life. Children who are not learning anything for hours every week are at a distinct disadvantage compared to children who are engaged in enriching activities. In the words of T. Berry Brazelton, of Harvard University: "During these all important bridge years between childhood and adulthood, kids really do need something constructive to do, and they also still need to have their activities supervised. Most of all, they need to know that their parents care about them, are involved in their lives, and have their best interests at heart."