THE EDUCATOR

JANUARY 2004

A Problem Based Learning Approach to the Training of Teachers of the Visually Impaired

Mike McLinden and Steve McCall
Lecturers in Visual Impairment, School of Education, University of Birmingham, England.

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     Birmingham University has a long established tradition of training teachers of the visually impaired. Campus based courses began in the 1960s and in 1983 a Distance Education programme was developed which grew to replace the campus-based option in the 1990s. Over one hundred students are currently registered on the two year Distance Education programme and approximately fifty new students join the programme each year.

     The Distance Education programme as it currently stands comprises four core modules and an additional dissertation or project module. Students, who are already experienced teachers in mainstream schools, are also required to undertake an assessed teaching placement in each year of the programme and to pass an examination in Grade 2 British braille. The programme is supported by a network of regional tutors and placement supervisors and students are required to attend regular regional seminars and residential training weekends that are held at the University twice a year. The four core modules are presented mostly in the form of written units that are sent to the students by post at the start of each semester and that are assessed through written assignments (for further details about the present organisation and delivery of the programme, see Arter et al., 2002). However in response to a number of developments and challenges, we are currently undertaking a major revision of the Distance Education programme. Our decision to change the programme was motivated by a number of factors:

Changing Needs: Children

      The needs of children with a visual impairment in the United Kingdom have become more complex. The proportion of the population of children with a visual impairment who have additional disabilities has steadily increased (Keil 2003) and now accounts for more than half of all children registered with a visual impairment. In the last ten years there has been a shift in Government policy and resources towards supporting early intervention and inclusion. Special schools designated for children with a visual impairment are closing at the rate of almost one a year and the majority of children with visual impairment who do attend special schools, attend schools for children with Severe Learning Difficulties and not schools for children with Visual Impairment.

Changing Needs: Teachers

     When the Distance Education training programme was established, most teachers on the programme came from special schools for the visually impaired where there were colleagues with expertise and experience they could draw upon. Now teachers are more likely to be part of a generic visiting teacher service or to be working in schools for children with Severe Learning Difficulties (SLD) where they may be the only specialist in visual impairment . Much of what they will be expected to do is to solve problems, sometimes in collaboration with other professionals but often in isolation. The knowledge, understanding and skills that these teachers require have also changed. For example teachers working with blind children who have SLD need a good knowledge of tactile codes and symbol systems other than braille to facilitate the development of communication and early literacy. The shift towards early intervention means that teachers are likely to be spending more time working with very young children in their homes with their parents, and the shift towards inclusion means they need specific training in advising and consultancy.

Changing Expectations: Policy

      The UK Government's policy agenda is now more firmly focused on evidence-based approaches to teaching and learning and upon target setting for both children and teachers. The Government's Teacher Training Agency has laid out a set of "standards" that define the "knowledge, understanding and skills" required by specialist teachers of the visually impaired, and in order to be approved, training courses in visual impairment must provide evidence that their programmes produce teachers who meet these standards. In response to the more varied and complex needs of teachers working in this area, we are currently restructuring our programme for the September 2004 intake. The restructured programme will make greater use of online resources and will incorporate a novel method of instruction: Problem Based Learning (PBL).

     Since its beginnings in Canada in 1969, Problem Based Learning (PBL) has become a well established approach to the training of medical personnel in many countries. The approach was developed as a response to disillusion with didactic, lecture-based approaches as a method of imparting knowledge in a field where practice and treatments were changing rapidly and patient care was becoming steadily more complex.

     In the United Kingdom, many undergraduate training courses for doctors, nurses and physiotherapists are structured around PBL. Although implementation of PBL varies from institution to institution, typically students on PBL courses will work together in small groups to address a true life problem that is drawn from every day practice. The group will be supported by a facilitator, usually a member of the teaching staff, whose role is to support rather than direct the students-learning. In PBL the problem is often presented in the form of a case, e.g. a child is brought by ambulance to the emergency room of a teaching hospital after apparently having a seizure at home. Details of the child that are available to the doctor on duty may be provided to the students, together with the findings of the doctor's initial examination of the child. The students are encouraged to consider the problem from several different perspectives at a range of different levels, for example the students will consider the possible diseases that may account for the child's seizure, they will take account of possible contributing factors such as the home environment, and they will consider a possible range of treatments available. Their considerations will take account of the resources available and the policies in place.

     The preliminary discussion of the problem will inevitably generate lines of enquiry that need further investigation and research. These are defined as the "Learning Issues" that drive the students? study (Dolmans et al. 1997). As the students progress, additional information may be "dripped in" by the facilitator as they work towards the possible solutions of the problem. At the end of the process the students will feed back their findings to their tutor and the real life solution to the problem is revealed before they are introduced to the next case.

     Although PBL training has now been adopted in diverse fields such as architecture, psychology and education, as far as we know it has not been used in the training of teachers of children with a visual impairment in the UK. The multi-level analysis that PBL requires was commended by Aitken, Millar and Nisbet (2000) as a useful tool for helping to optimise the environment for children with multiple disability and visual impairment and it was after reading Aitken's article that we first began to consider whether PBL could be applied to our courses in Birmingham as part of the general restructuring we were planning.

     While we could see the advantages that a PBL approach affords for training in our area, we also saw a number of challenges. The application of PBL to Distance Education is still relatively untried. As we have seen, PBL requires students to work together in small groups and we felt that this was likely to be far more difficult when the telephone and the internet were the main methods of communication. Moreover the role of the online facilitator would need to be carefully defined and thought through. Access to resources would be more difficult for distance students than campus based students and the students would need confidence in dealingwith the technologyinvolved. We therefore approached our University's Learning Development Unit for a grant to investigate the area further. Our bid for funding was successful and a pilot study is now underway involving two groups of six students from different parts of the country.

     The students will be trialling the use of PBL over a twelve week period in relation to one module of the new programme. The aim of this module is to enable participants to develop knowledge and understanding of vision and the human visual processes and the impact of visual loss on learning and development. We chose the area of visual processes partly because it had an obvious overlap with the medical field in which PBL had developed, and also because it was an area of the programme where knowledge was rapidly developing and where we knew that there was much information already available through the internet. The area also seemed to lend itself well to the skills of problem synthesis, hypothesis generation, critical appraisal of available information, data analysis, and decision making that we saw as central to the PBL process.

The broad objectives of the current study are:

1. to determine what online materials have been developed to date in this area and their relevance to the project.

2. to establish through interviews with colleagues who used PBL in the University's Medical School the key factors in effective practice

3. To plan, develop and trial a pilot set of on-line resources, drawing upon the principles of PBL

4. To evaluate and refine the materials for inclusion in the restructured programme of study in visual impairment (to run from September 2004).

5. To disseminate the findings of project through relevant journals, conferences and research seminars and consider their relevance to other DE programmes offered within the School of Education.

     We expect that by the end of the module students should be able to meet the standards in this area that have been defined for teachers of the visually impaired and they should be able to:

1. define key anatomical structures involved in human visual processing and explain the function and role of each component;

2. identify a range of common childhood visual conditions in relation to key anatomical structures and analyse the potential impact of each condition for learning and development;

3. define the visual and learning needs of a range of children with visual impairments, including the physical, emotional and social aspects, and analyse these needs within the context of inclusive education;

4. identify the interrelated nature of the physical, biological and behavioural mechanisms that must be considered during the process of generating an intervention plan when supporting children with visual impairments;

5. provide evidence of an effective reasoning process including thes kills of problem synthesis, hypothesis generation, critical appraisal of available information, data analysis, and decision-making;

6. demonstrate skills necessary to become selfdirected as a learner, acknowledging personal educational needs as well as those of group members, and make effective use of available learning materials, including online resources;

7. provide evidence of effective use of a range of ICT skills when using assistive technology to develop learning, including contribution to on-line tutorials/discussion groups, on-line search for key information, completion of on-line Module Portfolio etc.

     Work has begun on the development of cases for study by the students. With the help of an experienced Head of a Visiting Teacher Service for the Visually Impaired we have drawn up a range of short scenarios relating to children with a visual impairment.

     For example our first online scenario relates to a child with cataracts and nystagmus whose family have recently moved to a new part of the country and who is about to start in her new school. The cast of main characters includes the Head teacher, the pupil, the class teacher, the child?s mother and the newly recruited specialist teacher of the visually impaired who has just started her training. The students will be able to enter a restricted website to see an onscreen picture of each of the characters along with recordings of imaginary key telephone conversations between the main characters, and copies of referral forms and notes. The students are asked to take on the role of the specialist teacher and each group is set a number of tasks for completion by the next week. Communication between students will take place asynchronously through the internet, supplemented where necessary by phone conversations. The tasks will vary in complexity. For example in Week Two the students are asked to identify the challenges that the child might encounter in relation to particular aspects of her new environment e.g. classroom layout/seating/ lighting; communication /interaction with peers; reading and writing skills; movement and orientation etc. In Week Three the students have to prepare for an interview with the child's mother and are given some questions that it is possible the parent will ask e.g. exactly what is nystagmus and will it get worse? What is the difference between an optician and an ophthalmologist? Are there any support groups or voluntary organisations that the family can turn to? What do these specialists do - LVA specialist, mobility officer, educational psychologist?

      The programme is based upon a WebCT format and we are liaising with the School of Education Computer Officer who is an experienced web designer to produce the learning environment. The potential of the new approach seems great. For example we can incorporate video clips into the online scenarios, we can create links to websites and articles in online journals, and we can create an online version of the classroom that allows the student to rearrange the layout of the furniture or adjust lighting levels. Moreover because we will be able to record and capture the progress of each group online we can collect the new resources that each group unearths and make them available for the benefit of future students.

      We have organised an introductory day for the programme at the University in which each student is assigned to an "Activity Group". The students will meet face to face to discuss what will be expected of them and to familiarise themselves with the technology and the onscreen environment. They will then be introduced to the first scenario and begin to address the issues set out in the first week's task. Future success depends heavily on the development of a clear structure within each group. We have defined two key roles : "the coordinator" who will liaise with the tutor and keep the team on task, and "the summariser" who will summarise the discussion and findings of the group and present these along with an analysis of the findings to the tutor at the end of the week. As each week begins a new coordinator and summariser will be appointed from within the group. Each group will investigate two scenarios over the twelve week period. The proposed main method of assessment is a Module Portfolio submitted by each student that provides evidence that they have met the learning outcomes defined for the module. Then portfolio will include a reflective discussion which considers the processes by which knowledge and understanding was acquired through the PBL activities. Feedback from module tutors will be provided about the portfolio and about the performance of the individual during both campus and on-line components.

      We hope to have our initial findings from the pilot study available later this year and we would be interested to hear from other colleagues who are using this or similar approaches in their training of specialist teachers.

References:

1. Aitken S, Millar S, Nisbet P (2001). Applying the new medical model: intervening in the environment of children who are multiply disabled The British Journal of Visual Impairment 19,2, 74-80.

2. Arter C., McCall S. and McLinden M. (2002). A distance education programme for teachers of children with visual impairments in the United Kingdom Journal of Visual Impairment and Blindness 95, 9.

3. Dolmans D, Snellen-Balendong H, Wolfhagen I, Van Der Vleuten PM (1997). Seven principles of effective case design for a problem based curriculum Medical teacher 19,3 185-189.

4. Keil S (2003). Survey of Educational Provision for Blind and Partially sighted Children in England Scotland and Wales British Journal of Visual Impairment 21,3, 93-97.

 
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