Stacy L.
Stegall
a,
Alexander
Grushow
b,
Robert
Whitnell
c and
Sally S.
Hunnicutt
*a
aVirginia Commonwealth University Department of Chemistry, 1001 W. Main St., Richmond VA 23284, USA. E-mail: sshunnic@vcu.edu
bRider University Department of Chemistry and Biochemistry, 2083 Lawrenceville, NJ 08648-3001, USA
cGuilford College Chemistry Department, 5800W. Friendly Ave., Greensboro NC 27410, USA
First published on 15th February 2016
The POGIL-PCL (Process-Oriented Guided Inquiry Learning in the Physical Chemistry Laboratory) project has developed a series of workshops to introduce faculty to POGIL-PCL and to facilitate the development of new experiments. More than 60 faculty members from various institutions have attended these workshops. Workshop participants were surveyed in order to evaluate the effectiveness of the workshop and better understand why faculty choose to adopt POGIL-PCL. Of the participants who completed the survey, 77% had used POGIL-PCL experiments. The results of the survey show that personal influence is a major factor in all stages of the adoption process.
A sample agenda for the two-day workshops is shown in Appendix 1. The workshops open with participants doing a POGIL-PCL experiment. Immersion in a POGIL-PCL experiment allows faculty to get a sense of how the experiments work from students' perspectives and to observe how the experiments are facilitated. After this experience, participants then discuss the key elements of a POGIL-PCL experiment, the differences between traditional and POGIL experiments, and the facilitation of a POGIL-PCL experiment. Next, workshop participants review previously written experiments using a screening rubric (Appendix 2). The rubric emphasizes the key elements of POGIL-PCL experiments. By using the rubric, faculty better understand the general experiment structure and simultaneously learn about additional experiments.
A key part of the workshops is the opportunity to write a POGIL-PCL experiment. The writing portion of the workshops has been instrumental in expanding the number of POGIL-PCL experiments available, which is one of the goals of the project. Workshop participants work in groups of two to four people on the experiment they have chosen. Participants have revised existing POGIL-PCL experiments, converted standard physical chemistry experiments into POGIL experiments, or used their own ideas for new POGIL-PCL experiments. Up to eight hours over the course of the workshop are dedicated to writing and editing experiments. Instructors continue to work on the experiments after they leave the workshop in a variety of ways, including:
• writing and/or revising their own experiments and instructor's handbook
• testing the experimental procedure for newly developed experiments at their institution (alpha-testing)
• writing reviews of new experiments written by others
• implementing a fully-developed experiment (exactly as written by others) at their institution, and writing a review (beta-testing)
One criticism of some education research and dissemination methods is that instructors are simply given the materials and told what to do; the instructors have little or no involvement in developing materials. The lack of interaction between researchers and instructors often leads to problems with implementation (Henderson and Dancy, 2008). The writing portion of POGIL-PCL workshops addresses this concern by allowing instructors to focus on developing materials suitable for use in their own laboratories and by fostering collaboration among participants and researchers (facilitators). Development-style workshops have been developed for the POGIL Biochem project (Murray et al., 2011). The collaboration occurs not only between participants and facilitators but also between new participants and experienced participants (those who have previously attended workshops). The planned time for social interaction and networking among participants and facilitators further reinforces the collaboration and network among the new and experienced participants.
At the end of the workshop, participants provide feedback for the workshop facilitators. Participants are asked to fill out a Workshop Assessment form listing strengths of the workshops, the improvements the workshop needs, and any insights they gained from the workshop. The feedback provided by workshop participants is used to improve future workshops.
The workshops described in the previous paragraphs and illustrated in Appendix 1 are two-day workshops. The POGIL-PCL Project also holds half-day workshops at the Biennial Conference on Chemical Education (BCCE). Because the workshops at the BCCE are only a few hours long, the agenda emphasizes experiencing and then discussing a POGIL-PCL experiment. The workshops at BCCE provide instructors with an introduction to POGIL-PCL, but, because the BCCE workshops are so short, participants do not have as much time for the socializing and networking with other physical chemistry faculty that occurs at the two-day workshops. The BCCE workshops also do not include time for writing and development of experiments. Approximately half of the faculty who have attended the BCCE workshops have later attended the two-day workshops.
The workshops were advertised via email, announcements at pogil.org, conference presentations at regional and national American Chemical Society meetings, and at the 2012 Biennial Conference on Chemical Education.
Fig. 1 Diagram of the POGIL-PCL cycle. The experiment begins with the title as a question, includes multiple “data-think” cycles, and concludes with a set of post-experiment questions focusing on application. (Reproduced by permission from Hunnicutt et al., 2015.) |
• those who have heard about POGIL and are interested in learning more,
• those who have begun to use POGIL at their institutions, and
• those who primarily use POGIL at their institutions.
The process of change from traditional laboratory teaching methods to using POGIL goes through several stages. The diffusion of innovations theory developed by Rogers describes the process of implementing change in five stages: knowledge, persuasion, decision, implementation, and confirmation (Rogers, 2003; Sahin, 2006). The first stage, knowledge, involves becoming aware of the innovation and learning how it is used. In the persuasion stage, an instructor begins to form an opinion based on the perceived advantages, disadvantages, and complexities of the innovation, the compatibility with their current environment, and the opinions of their peers. After learning of the innovation and forming an opinion about it, the instructor makes a decision to adopt or reject the innovation. An instructor may initially decide to adopt then later reject the innovation or discontinue use, or initially reject the innovation and later adopt it. Following the decision to adopt, the instructor enters the implementation stage. During the implementation stage, an instructor may seek support from more experienced users of the innovation. The final stage in this process of change is the confirmation stage, in which instructors seek support for their decision to adopt (Rogers, 2003; Sahin, 2006).
Instructors who attend POGIL-PCL workshops may be at any of the five stages in the diffusion of innovations. Instructors who are in the knowledge stage may be dissatisfied with the experiments they currently use and come to the workshops to learn about another way to teach a lab course, while those who are in the persuasion stage have heard about POGIL and want to learn more about it in order to decide whether they want to try POGIL experiments in their laboratory course. Some are in the implementation stage and are looking for support to deal with the challenges they have encountered or for more experiments for their course. More experienced participants may be in the confirmation stage and come to the workshop for the support from like-minded instructors.
After the workshop, instructors continue to move through these stages. Those who choose to implement may try previously developed experiments, or they participate in beta-testing. Beta-testing is the process of testing and reviewing experiments that are under development; once an experiment has been successfully tested, it may be considered ready for distribution to the community. After beta-testing the experiments with their students, instructors provide feedback to the authors of the experiment. This interaction plays an important part in developing experiments for the POGIL-PCL project and in supporting instructors in both the implementation and confirmation stages. Developers provide the experiments to instructors to implement with different groups of students, and instructors provide the developers with feedback on what did and did not work with the experiment.
As instructors move through the change process, many factors affect their willingness to adopt a new teaching method. These factors include interest in new methods, support from colleagues and administrators, time involved in implementing the new method, research showing the effectiveness of the new method, availability of resources, and the ease or difficulty of implementation (Jacobsen, 1998; Bennett and Bennett, 2003; Gess-Newsome et al., 2003; Rogers, 2003; Henderson, 2005; Sahin, 2006; Pundak and Rozner, 2008; Henderson et al., 2011; Olitsky, 2015). Dissatisfaction with current teaching methods is often considered a prerequisite for change (Gess-Newsome et al., 2003; Henderson, 2005; Pundak and Rozner, 2008; Olitsky, 2015). Personal influence is also considered to be a major factor in the adoption process, particularly for those who adopt later (Rogers and Beal, 1957). Those who adopt early, when an innovation is still new, may not have as many sources of personal influences because few people have adopted the innovation. Those who adopt later on are likely to seek information and support from early adopters who have more experience with the innovation (Rogers and Beal, 1957).
• What factors initially interest instructors in changing their teaching method?
• What factors affect whether instructors adopt new teaching methods?
• To what extent are the workshops effective? Do participants adopt POGIL-PCL experiments after the workshop?
(1) How did you find out about the POGIL-PCL workshop?
(2) Which of the following describes your reason(s) for coming to a POGIL-PCL workshop?
(3) Which of the following would encourage (or has encouraged) you to use POGIL in your lab(s)?
The possible responses and percentages for each response for question 1 (How did you find out about the POGIL-PCL workshop?) are shown in Fig. 2. The two most common responses were “I attended a seminar or meeting in which POGIL-PCL was discussed” (45%) and “It was recommended by a colleague, or I was invited by one of the organizers” (40%). In contrast, a much smaller percentage of respondents selected the response “I read about it on the POGIL website” (6%). The data here indicate that actively speaking about the workshop with a person, such as a colleague or a seminar speaker, has a greater influence on an instructor's decision to come to a workshop and learn more about the POGIL-PCL than passive, impersonal communication such as reading about the workshop on the website. Rogers and Beal, as well as Jacobsen, also found that personal influence was a major factor in an individual's decision to adopt change (Rogers and Beal, 1957; Jacobsen, 1998). Rogers and Beal argue that impersonal communication (like mail) is easy to ignore and that individuals who are unsure about a new idea are more likely to be reached by person-to-person communication (Rogers and Beal, 1957).
Fig. 2 Percent of total responses for the question, “How did you find out about the POGIL-PCL workshop?” Respondents were asked to select all answers that applied. |
Another question addressed instructors' reasons for coming to a workshop. The top three responses in Fig. 3 were given in the survey; the bottom three responses were common themes among respondents who selected “other.” The belief that students do not get much from traditional labs or experiments, the desire for students to be active learners, and feeling that students are more concerned with getting the correct answer than the process of learning accounted for over 90% of the responses. A desire to get students more engaged in lab and involved in the process of learning appears to play an important role in instructors' decision to come to a workshop, although the workshop itself may have influenced respondents' answers to this question. The survey responses are consistent with the discussion at the workshops and with the ultimate design of the POGIL-PCL experiments, as illustrated in Fig. 1, that arose out of these workshop discussions. Comments from instructors also supported this conclusion. One instructor commented, “I wanted access to labs that are more appropriate for upper level labs-that get students to think about what they are doing, why they are doing it, and what the results mean.” Another instructor commented, “I want my students to learn to think. Thinking rarely seems to occur in traditional labs.”
Fig. 3 Percent of total responses for the question, “Which of the following describes your reason(s) for coming to a POGIL-PCL workshop?” Respondents were asked to select all answers that applied. |
The third question addresses the factors that encourage instructors to implement POGIL-PCL in their laboratory. Instructors' responses are shown in Fig. 4. Research and statistics showing the effectiveness and long-term benefits of POGIL had a large impact on instructors' decisions to implement POGIL; however, hands-on experience with POGIL labs or experiments received the highest response rate (22%). Hands-on experience was also a common theme among the strengths participants cited on the SII forms. The hands-on experience provided at the workshops allow instructors to see how the experiments work from the student's perspective and to observe how those who currently use POGIL in their lab courses facilitate the experiments. This experience is a key component of the third, or decision, stage of Roger's theory of the diffusion of change (Rogers, 2003). Another study also emphasized the importance of hands-on experience at workshops (Burke et al., 2004). Again, direct personal influence was also a factor in encouraging instructors to implement POGIL. Personal influence in this case occurred during and after the workshop in the form of support from the POGIL community, learning about POGIL from colleagues, and interacting with other physical chemistry faculty.
Table 1 shows the percentages, sorted by frequency, of instructors who had used POGIL in their lab. Of the instructors who responded, 77% had used POGIL to some extent in their lab. (“To some extent” refers to the sum of the categories “mostly used POGIL labs,” “used POGIL labs regularly,” and “tried a few POGIL labs.”) As shown in Fig. 5, email/Skype with POGIL facilitators and follow-up workshops were the most commonly selected forms of support. Personal influence was a key factor in motivating instructors to change their teaching methods; the responses here indicate personal influence is also an important factor when instructors are making the decision to implement POGIL. Burke et al. (2004) also found that many workshop participants value the interaction provided at workshops, as it allows them to network with colleagues in their field and discuss challenges associated with implementation with more experienced practitioners.
Mostly used POGIL labs regularly | 19% |
Used POGIL labs regularly | 23% |
Tried a few POGIL labs | 35% |
Do not use POGIL labs | 23% |
Of the respondents who said they had not used POGIL since the workshop, the most commonly cited reason was that the instructor had not taught a lab course since the workshop (57%), followed by the course being taught round-robin style (29%). Using POGIL-PCL in a round-robin format could be an area for future study, given that a round-robin setting does provide some logistical challenges because POGIL-PCL experiments rely heavily on collaboration both within and between groups of students.
Survey respondents were also asked about their past experience with POGIL. Instructors were asked to recall whether their experiences had been mostly positive, somewhat positive due to either issues with the activities or resistance from students and/or other faculty, or if they had a lot of difficulty with the activities or resistance from students and/or other faculty. Over fifty percent of the survey respondents reported that their experience had been mostly positive. Given that instructors were more encouraged to implement POGIL in their laboratory when they had hands-on experience with the experiments, it seems that prior experience with POGIL would have an effect on an instructor's decision to use POGIL-PCL experiments. It was hypothesized that instructors whose prior experience was more positive would be more likely to use POGIL-PCL experiments. Fig. 6B shows that, when instructors reported having a mostly positive experience in the past, 83% had used POGIL-PCL experiments to some extent, with 32% mostly using POGIL-PCL experiments. (Again, “to some extent” refers to the sum of the categories “mostly used POGIL labs,” “used POGIL labs regularly,” and “tried a few POGIL labs.”) However, for instructors whose experience was not mostly positive (i.e. somewhat positive or a lot of difficulty), 67% had used POGIL-PCL experiments to some extent, and only 5% were mostly using POGIL-PCL experiments. As expected, those who had a more positive experience with POGIL before coming to the workshop were more likely to try POGIL-PCL after the workshop.
It should be noted, however, that, even when instructor's experience was not mostly positive, some still chose to try POGIL-PCL after attending the workshop. Despite reporting difficulty with the activities and/or resistance from students and/or faculty in the past, 67% of instructors (Fig. 6B) had chosen to use POGIL-PCL experiments, with sizable percentages having tried a few experiments or regularly using the experiments in their labs. This result speaks to the effectiveness of the workshops. Although some instructors recalled less than positive experiences with POGIL in the past, they chose to attend a workshop and decided to try some of the experiments.
There is also the question of whether instructors will continue to use POGIL years after they have attended the workshops. Five or ten years after their initial decision to implement POGIL, will instructors still be using POGIL-PCL? One study by Stains et al. (2015) found that, while instructors who attended workshops changed their teaching methods immediately after attending a workshop, these changes were not sustained a year later. In this study, the responses from instructors, particularly those regarding their reason for coming to a POGIL-PCL workshop, indicate that workshop participants believe in the goals of the POGIL-PCL project. Future studies will be necessary to determine how many instructors continue to use POGIL-PCL.
One question that is perhaps more difficult to answer is how instructors who have attended the workshops implement POGIL-PCL experiments. Do they implement the experiments as written, or do they modify them? How do different instructors facilitate the experiments? These questions can be answered to a certain extent by asking instructors about their implementation and has been addressed in a follow-up survey. When viewed collectively rather than individually, self-assessments can provide some indication of workshop success (D'eon et al., 2008). Faculty could also be interviewed individually or in focus groups. However, it is difficult to fully answer these questions without observing individual instructors because faculty are self-reporting their activities. Alternatively, faculty could be observed teaching their courses using an observation rubric developed for laboratory courses (Piburn et al., 2000; Smith et al., 2013; Lund et al., 2015).
Several open questions have been discussed, including how long to wait after the workshop to conduct a survey and how different instructors implement POGIL in their laboratory courses. A follow-up survey has been conducted to address these questions. Future papers will discuss results of this follow-up survey and focus on the development of a POGIL-PCL network over time.
This rubric guides initial review of a laboratory experiment to determine how well the activity supports process-oriented and guided-inquiry learning in the physical chemistry laboratory. The review pertains only to the written description of the experiment, protocol, and pre/post lab questions included and not to how an instructor might facilitate its use. A “yes” response should indicate that evidence for that characteristic can be found in the activity itself. The evidence must be explicit, i.e. reviewers should not assume that an instructor using the activity will provide anything that seems to be missing. If evidence is found, then a “yes” response is appropriate, irrespective of the perceived quality of that characteristic. If no explicit evidence can be found, then a “no” response is appropriate.
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