- Research article
Learning design as a vehicle for developing TPACK in blended teacher training on technology enhanced learning
International Journal of Educational Technology in Higher Educationvolume 14, Article number: 34 (2017)
This paper presents a framework for constructivist pre-service teacher training in Technology Enhanced Learning, adopting a view of teachers as designers of innovative content, working individually and/or collaboratively, discussing and interacting with the instructor, technology and their peers. In such a context, a challenging issue is the content and structure of appropriate activities for cultivating various types of synthetic knowledge combining technology, pedagogy and content through asynchronous collaboration. In this paper, we elaborate on the social orchestration of a training course around collaborative design activities and on the emerging challenges from two successive cycles of implementation. We highlight the elements used to expand and augment online interaction, drawn from two known approaches in teacher training and online learning, the TPACK (Technological, Pedagogical and Content Knowledge) framework and the CoI (Community of Inquiry) model. We specifically examine a) the impact of synthetic design activities to the development of pre-service teachers’ synthetic knowledge (of Technology, Pedagogy and Content) and b) the relationships among specific elements of TPACK and CoI. Findings drawn from the examination of pre-service teachers’ perspectives through two structured questionnaires reveal important potential of synthetic activities for teachers’ TPACK development and highlight specific connections among elements of the TPACK and CoI frameworks.
Technology Enhanced Learning (TEL) design by teachers is an inherently challenging task (Mor & Winters, 2008) addressing realistic workplace needs whilst simultaneously revealing several complex design preoccupations. Ruthven (2007) identifies key structuring features in TEL integration, requiring from teachers to shape their craft knowledge accordingly: working environment, resource system, activity format, curriculum script and time economy. Digital media integration, thus, goes beyond traditional lesson planning, or even instructional design models. An overview of these traditional models brings to surface a common underlying schema: objectives - selection of appropriate content, materials and method - implementation - outcomes. The focus on application of generalizable results and measurement is obvious (Pinar, 2014). Designing for TEL though, demands “thinking out of the box” with regards to emerging learning environments shaped by digital media, as the latter integrate new kinds of learning activities, new ways of digital expression, new social orchestration patterns and spatial arrangements (Kynigos, 2003, our emphasis).
The above challenges are expressed in the field of TEL teacher education as a growing concern on the inadequacy of teacher preparation programs treating technological, pedagogical and content knowledge in isolation (Angeli & Valanides, 2009). Technological knowledge -in the sense of ICT literacy or basic computing skills-, seems to be the primary focus of the prevailing paradigm in teacher preparation programs (Angeli & Valanides, 2005). The main point of criticism on this rationale lies on the fact that it does not suffice to equip teachers with adequate knowledge to naturally synthesize their technology skills with teaching methods and their knowledge of their subject matter (Angeli & Valanides, 2005; Jang, 2008; Koehler, Mishra, & Yahya, 2007; Wilson, 2003). As Ruthven (2009) suggests: “Understanding the challenges of incorporating new technologies into classroom practice calls for the development of naturalistic perspectives that situate their adoption and use within the everyday work of teaching” (Ruthven, 2009:131).
In this line of thought, several approaches have emerged in the field, legitimizing design as a valued professional activity in the teaching profession and calling for a repositioning of teachers from conveyors of knowledge to designers of learning (Mor, Warburton, & Winters, 2012). Some of these are: “design thinking in pedagogy” (Luka, 2014), “learning by design” (Kalantzis & Cope, 2012) and “universal design for learning” (Meyer, Rose, & Gordon, 2014). Alongside these approaches evolves the strong tradition of “learning design” envisaging teaching as a design science (Laurillard, 2012; Beetham & Sharpe, 2013; Mor & Winters, 2008) and the “teachers as designers” view of Mishra and Koehler (2006), introducing the synthetic teacher knowledge of technology, pedagogy and content, widely known as Technological, Pedagogical and Content Knowledge (TPACK).
In line with the aforementioned approaches highlighting the role of trainee-teachers as active designers of lessons, related literature also includes several models, tools and frameworks focusing on (a) the organisation of the design process and/or (b) building a sense of community by cultivating the social dimension of a course on learning design.
Organisation of the design process. At first, MAGDAIRE (abbreviated form Modeled Analysis, Guided Development, Articulated Implementation, and Reflected Evaluation, Chien, Chang, Yeh, & Chang, 2012) proposes a 4-phase cyclic framework for promoting pre-service teachers’ technology competency in order to customize technology-integrated materials for science instruction. It also aims at constructing an authentic context in which pre-service teachers work in groups and adopt multiple roles, including technology designer and developer, content provider and course instructor. This framework builds on the tradition of cognitive apprenticeship and focuses on science teaching and the development of specific type of content, i.e. Online Science Courseware (OSCs). Also, the Learning Design Studio (LDS) is a course format, which gradually guides student-teachers to address and formulate a learning design challenge by inventing a techno-pedagogical innovation (Mor & Mogilevsky, 2013). Inquiry is at the core of this proposal. Although the idea is promising, further elaboration on the needs of pre-service teachers is necessary in order to provide a solid framework for teacher training. Technology mapping is an instructional design model, deeply rooted and situated in teachers’ practices, aiming to guide their thinking in technology design problems (Angeli & Valanides, 2009). It emphasizes on the situated nature of teachers’ thinking and the critical role of teachers’ understanding of their students and context (i.e., affordances of technology, content, pedagogical strategies, setting) in their instructional decisions. This approach is more well-suited to the needs of experienced teachers having shaped their own practices. Pre-service teachers are a special target group that poses a set of different challenges that need further exploration.
Building a sense of community. As regards the social dimension of teacher training, a proposal is to evolve a community of practice in which pre-service teachers collaboratively work on generating applicable Online Science Coursewares (OSCs) with peers and instructors. In this framework, interaction takes place face to face in classroom settings (Chien et al., 2012). Moving online, in search of ways of shifting teaching practice to a culture of sharing learning ideas, Conole and Culver (2010) created and maintained Cloudworks, a social networking site for learning design, based on the notion of “social objects”, which are learning designs understandable and shareable by teachers online, using a Web 2.0 philosophy. Also, the Learning Designer environment (Laurillard et al., 2013) supports lecturers and teachers in capturing their pedagogical ideas, testing them out, revisiting them, allowing them to build on others’ ideas, and share them with the community. The Integrated Learning Design Environment (ILDE) (Hernández-Leo, Asensio-Pérez, Derntl, Prieto, & Chacón, 2014; Asensio-Pérez et al., 2017) provides support to communities of educational designers (such as teachers and professional instructional designers) in the process of co-creating and sharing learning designs. Lastly, PeerLAND (Papanikolaou, Gouli, Makri, Sofos, & Tzelepi, 2016a) is a web-based environment that supports the development and peer evaluation of learning designs on the basis of TPACK. Users are supported to act as reviewers and participate in peer-evaluation tasks of scenarios authored by specific user-authors. The above approaches either include f2f collaboration or provide a technological solution mainly allowing sharing of designs, peer review of complete learning designs, and collaborative construction of designs based on specific pedagogical perspectives. However, the way these approaches and tools can be incorporated in teacher training to support the development of common understanding on learning design issues among pre-service teachers lacking teaching experience, remains a challenging issue.
Thus, despite these initiatives, the field of teacher education is still in need of ideas for meaningful experiences of using TEL, specifically addressed to pre-service teachers. These experiences are expected to support a comprehensive understanding of the dynamic interplay of technology with teaching, learning and content/subject matter representation and its communication to students (Chien et al., 2012). Furthermore, research on the implementation and validation of the TPACK framework in higher education remains limited, while the challenge of sustaining meaningful collaboration online is an ongoing research pursuit (Brindley, Walti, & Blaschke, 2009). This is the focus of our work which proposes a course format organizing TEL training around learning design tasks gradually preparing pre-service teachers to face the challenges of combining technology, pedagogy and content, in a way that promotes the sense of community through online collaboration. In the following sections, we structure the presentation of our work as follows: first we argue on the need to synthesize TPACK and Community of Inquiry (CoI) (Garrison, Anderson, & Archer, 2001) frameworks and explain how such a synergy would promote research and practice in the field of online and blended learning for pre-service teachers. We then elaborate on the way this synergy actually took place, in our empirical research spanning two cycles, the first informing and guiding the next. The two research questions we articulate relate to the activities and curricular decisions we made in each cycle and focus on a) the effects of synthetic design activities (individual/collaborative, online/f2f) on synthetic types of teacher knowledge and b) the relationship among specific elements of CoI and TPACK. Our findings reveal particular aspects of this synergy and point to areas needing further elaboration.
Synthesizing two frameworks on a teacher training course on TEL design
Summarizing the problematique of the introductory section, a TEL design course “for beginners” should aim at synthesizing different areas of teacher knowledge (Mishra & Koehler, 2006) and at integrating meaningful ways to engage pre-service teachers with design tasks in a natural way (Angeli & Valanides, 2009). In particular, the pedagogical engineering underlying a course design framework for pre-service teachers needs to target complex, synthetic fields of knowledge following the TPACK framework (Mishra & Koehler, 2006), such as Technological, Pedagogical Knowledge (TPK), Technological Content Knowledge (TCK) and TPACK instead of focusing on simpler, separate constituents (such as Technological Knowledge, Pedagogical Knowledge and Content Knowledge). To this end, constant interaction between teachers’ understanding of technologies and pedagogical content knowledge is a prerequisite. But how can these pursuits be translated in meaningful activities which lead to new experiences for pre-service teachers in an authentic and interactive blended learning context?
As a contribution to this line of research, we propose a framework for constructivist pre-service teacher training on TEL, based on a synthesis of TPACK and CoI frameworks. Whilst both models are widely recognized as influential, there is scarce evidence on how a synergy between the two could promote research and practice in the field of online and blended learning. More specifically, the TPACK framework has been widely used in online and blended learning settings (Clark-Wilson, Robutti, & Sinclair, 2014), so its use would also be expected in teacher education. This is hardly the case, as dominant eLearning and blended learning designs still remain teacher or content-centered (Tømte, Ann-Britt Enochsson, & U., & Kårstein, A., 2015). Recent research calls for a more robust theoretical grounding of the framework (Angeli & Valanides, 2009; Archambault & Barnett, 2010; Jimoyiannis, 2010; Tzavara & Komis, 2015). In particular, a sound theoretical grounding guiding practical uses of TPACK is an emerging need, due to the following reasons: TPACK still doesn’t address evaluation in a consistent way (Chai, Koh & Tsai, 2013; Koehler, Rosenberg, Greenhalgh, Zellner, & Mishra, 2014; Schmidt et al., 2009), it has not been directly related to specific disciplinary areas (Jimoyiannis, 2010; Tzavara & Komis, 2015; Voogt, Erstad, Dede, & Mishra, 2013) and finally, proposed research pursuits call for the implementation of the framework in a larger scale in higher education (and other) settings (Rienties, Brouwer, & Lygo-Baker, 2013; Niess, 2011).
On the other hand, the CoI model has been submitted to extended empirical testing for almost two decades, gaining a significant degree of validity. It has also been extensively employed as a design blueprint for online and blended learning programs worldwide (Garrison, Anderson, & Archer, 2010). However, focusing on the cognitive dimension of the framework, a persistent issue is the difficulty of participants in online conversations to proceed to common understanding and joint construction of meaning. Research on this problem highlights important aspects in the design of online interaction: the nature of the triggering event or problem under question (Luebeck & Bice, 2005), the design of appropriate tasks (Murphy, 2004), the use of appropriate techniques by the moderator for organizing –but not eliciting- discussion and finally, the focus on group dynamics (Pawan, Paulus, Yalcin, & Chang, 2003). A function with added value for the evolution of the CoI model would be that of a framework for predicting and evaluating the construction of knowledge in online and blended learning settings (Shea & Bidjerano, 2012).
Synergies between TPACK and CoI have begun to take shape in related literature, they are, however, still nascent and premature, either drawing separate elements from the two frameworks in design models (Hokanson, Clinton, & Tracey, 2015; Bath & Bourke, 2011), or attempting to propose a synthesis not yet fully articulated (Otrel-Cass, 2015).
In this paper we present a synthetic framework combining elements of TPACK and CoI, having been gradually shaped throughout a 5-year iterative process of empirical testing with different audiences of pre-service teachers in blended learning settings (Papanikolaou & Gouli, 2013; Papanikolaou, Gouli & Makri, 2014; Kounenou, Roussos, & Yotsidi, 2014; Makri, Papanikolaou, Tsakiri, & Karkanis, 2014). The framework is guided by three principles: (a) interaction with state-of-the-art, accessible and teacher-friendly technology such as Web 2.0 tools and dedicated learning design environments, stimulating pre-service teachers’ reflection on their own pedagogical perspective in course design and experimentation with new ones (Papanikolaou et al., 2016b), (b) active involvement in TEL design aiming to cultivate synthetic knowledge of TPACK, and (c) collaboration with peers to design TEL artefacts through successive cycles of practical inquiry. These cycles are organized around specific design challenges triggering reflection on the principles underlying the matching of appropriate pedagogical and technological tools.
The theoretical grounding of this work builds upon the cognitive dimension of the CoI model (Garrison et al., 2010; Garrison, 2011), as a basis for the design of a progression of synthetic knowledge of TPACK. This is the cross section of TPACK with CoI. TPACK provides a blueprint for designing activities (collaborative design tasks) to cultivate appropriate synthetic types of knowledge, whilst CoI functions as a mechanism for organising teacher-trainees’ interaction around design goals that incrementally lead them to develop their cognitive presence and jointly construct meaning.
This framework was tested in two successive cycles that provided adequate experience to evaluate and optimize the intersection of TPACK with CoI and the way both could support the design of a pre-service teacher training course with a collaborative design-centered perspective. In both cycles, pre-service teachers worked individually and in groups based on their personality traits (based on the five-factor personality model) and other psychological variables, such as self-efficacy, anxiety and attitudes (Kounenou et al., 2014).
Cycle 1 represents our first attempt to map individual and collaborative activities and tasks to specific types of knowledge from TPACK.
Cycle 2 represents our pursuit to synthesize TPACK and CoI, through augmenting the synthetic view in tasks and activities, and aligning these to specific types of TPACK elements and related online presences.
The specific research questions addressed are:
What is the effect of synthetic design activities (individual/collaborative, f2f/on-line) both on simpler and more synthetic types of knowledge?
What relationships can be drawn among TPACK and CoI elements?
Cycle 1: Separating technology from pedagogy and content
During Cycle 1, at an early stage pre-service teachers worked individually on activities focusing separately on either technology or pedagogy. Then participants were organized in groups, in order to collaboratively design and author an educational scenario.
Aiming at increasing the intensity of interaction among group members in educational scenario design, the following collaboration script was adopted, prescribing the envisaged phases, roles and activities (Dillenbourg & Hong, 2008) (see Table 1):
Initially pre-service teachers worked individually with various Web 2.0 technologies and web resources in order to cultivate their Technological Knowledge (TK). Then they were asked to (a) reflect on the added value of these technologies for their particular discipline in order to cultivate their Technological Content Knowledge (TCK) (see Table 1, Rows 1 & 2) and (b) elaborate on a pedagogical framework for designing learning activities aiming at cultivating their Pedagogical Knowledge (PK) (see Table 1, Row 3),
These activities started in class during F2F workshops and continued online.
Then, pre-service teachers were familiarised with learning design environments such as Learning Designer, INSPIREus, LAMS, which are content free but they have a strong pedagogical orientation addressing their Technological Pedagogical Knowledge (TPK). Later on, they worked in groups of three (3) that were formulated on the basis of specific psychological characteristics, with these environments in order to collaboratively design a course and author appropriate content aiming at cultivating their TPACK i.e. synthesizing Technological with Pedagogical knowledge in order to teach particular Content (see Table 1, Row 4).
Students worked in groups in class and online.
Cycle 1 revealed two main issues guiding the design of Cycle 2: the first issue was a difficulty in maintaining participation and communication flow in asynchronous discussions; this was attributed to (a) the blended character of the course and the fact that most issues were resolved in f-2-f seminars and (b) pre-service teachers’ inexperience with asynchronous collaboration. The second issue had to do with the lack of achieving a gradual progress, starting from activities targeting simpler knowledge areas (such as TK, TCK or PK) and coming to more complex ones (such as TPK and TPACK) needed for scenario design. Pre-service teachers faced serious difficulties in synthesizing TP, TCK and PK while designing a course during the last phase of the TEL course.
Cycle 2: Learning design tasks that promote the synthesis of technology, pedagogy and content
The issues acknowledged during the first cycle of the implementation led to significant changes in the course curriculum at the second cycle. The core idea guiding the second cycle was to put emphasis on activities that cultivate synthetic types of knowledge such as TPK, TCK and TPACK, almost from the beginning of the course. This was realized by functionally integrating CoI in the course format and deploying TPACK through cycles of practical inquiry on various collaborative learning design tasks. This is in accordance with the view of TPACK as a holistic and transformative form of knowledge suggesting that growth in just one of the three knowledge bases, i.e., technology, content, and pedagogy, does not readily bring about progress or growth in TPACK as a whole (Angeli & Valanides, 2009).
Individual work at the 2nd cycle had a limited duration and aimed at allowing participants to acquaint themselves with the online environment; it gave its place, at an early stage, to collaboration in small groups working on the design and authoring of a technology enhanced course. Group interaction took place through the forum. Thus, the forum functioned as a transcription of the evolution of each group’s design choices. It was organized in topic-threads, labeled with the name of each group. This way the group area was also accessible by the whole class, allowing for peer assessment activities. The forum was the main place for group communication and online interaction. This key role created the need to align online communication with the course content and the organization of design activities. Thus, close collaboration of multiple levels of expertise was an emerging need: online communication was monitored by two online moderators/online learning experts and the content was organized in collaboration with the content expert.
In particular, emphasis was put on the gradual collaborative development of a technology-enhanced course (learning design) throughout the course. Pre-service teachers’ collaboration was organized in successive stages around three specific design challenges. Each challenge initiated cycles of practical inquiry which would gradually lead to the integration of separate elements into a more integrative course structure, cultivating various synthetic types of knowledge. To this end, several triggering events were proposed leading to cycles of the practical inquiry process. This process comprises of four stages (Garrison et al., 2001): (a) an initiation phase, which is considered a triggering event, (b) an exploration phase, characterized by brainstorming, questioning, and exchange of information, (c) an integration phase, characterized by constructing meaning and (d) a final phase, characterized by the resolution of the problem created by the triggering event.
In summary, pre-service teachers working in groups of three had to address three particular design challenges, seriatim (see Table 2):
1st design challenge: initially they had to discuss and decide on the roles they would undertake (choosing among “the teacher”, “the researcher” and “the computer scientist”), the target group, the topic of the course they would develop (interdisciplinary in the case of mixed-discipline groups), taking in mind areas and subjects suggested by the Greek national curriculum (1st triggering event).
2nd design challenge: then they were assigned to design a learning activity for the selected topic, focusing on a specific knowledge process involving Web 2.0 tools and web-based resources (2nd triggering event). In particular, they had to (a) define learning objectives, (b) select appropriate Web 2.0 tools to integrate in the learning activity, (b) develop digital learning objects with the Web 2.0 tools, (c) connect the objects with a knowledge process using the New Learning – Learning by Design framework (Kalantzis & Cope, 2012) framework, matching with their learning objectives.
3rd design challenge: Finally, the design of a course as a sequence of learning activities and the authoring of appropriate content was the 3rd triggering event they had to address. During this process, trainees used dedicated learning design authoring environments (such as Learning Designer, and INSPIREus or LAMS) to develop appropriate content and reflect on their artefacts. The final deliverable was a technology-enhanced course which included discrete learning activities of various types, as suggested by Laurillard (2012): read-watch-listen (assimilation), discussion, collaboration, investigation, practice and production. These activities should integrate web resources and objects developed with Web 2.0 tools, aiming at various knowledge processes using the New Learning – Learning by Design framework (Kalantzis & Cope, 2012). Each activity should be also pedagogically documented with appropriate teaching techniques, suggested tools and resources, types of interaction and participants’ roles.
The core idea behind the design challenges is to promote pre-service teachers at cultivating synthetic types of knowledge giving each time emphasis to different types of TPACK knowledge necessary for the goal of gradually designing a complete course design. Meanwhile, the integration of a strong element of online communication through the forum dictated a more demanding role for the instructor/moderator. Thus, the types of TPACK knowledge addressed in each task were complemented with types of online presence (cognitive, social, teaching) (see Table 2, columns 2 and 3).
The study was performed in the context of one semester TEL courses for two subsequent academic years where the blended learning scenarios of Cycles 1 and 2 were implemented. The first year, a pilot study was performed with pre-service Civil Engineering Educators of the Higher School of Pedagogical and Technological Education (ASPETE) (Cycle 1). The second year the main study (Cycle 2) was performed with three categories of 207 pre-service teachers: (a) students of a 1-year postgraduate certificate in education of ASPETE and postgraduate students of the department of Informatics and Telecommunications of the University of Athens, (b) undergraduate students of the department of Civil Engineering Educators of ASPETE, (c) undergraduate students of the department of Informatics of the Technological Educational Institute of Central Greece.
In this paper, we consider the three groups as one, since they belong to the broad category of pre-service teachers, coming, however, from different disciplinary areas. Furthermore, the scores of the three groups for the study variables (TPACK and CoI) were tested for heterogeneity and mean differences; none of them was found to be significant. Thus, the data we use in this research, for the first research question, come from the last group and for the second research question, come from all the three groups since the framework we propose as well as the scope of this empirical research doesn’t focus on tools and didactic approaches of any specific discipline or degree, but rather exploits the complementary expertise, skills and preferences of pre-service teachers.
All the courses used Moodle for class administration, content delivery, and communication/collaboration, beyond the regular f-2-f meetings/workshops. In this study asynchronous discussions are valuable resources for assessing the learning and design process. Moreover, through the second cycle of the course, the trainees completed two questionnaires (a) the TPACK instrument measuring pre-service teachers’ self-assessment of the seven knowledge domains included within TPACK (Schmidt et al., 2009) and (b) the CoI questionnaire, an instrument assessing students’ perceptions on the development of the teaching, social and cognitive presences (Arbaugh et al., 2008).
Data analysis & results
In this section we provide initial evidence for the effectiveness of the activities employed based on the pre-service teachers’ perspective. To this end, we analyzed their answers to the TPACK and CoI questionnaires collected during the 2013–2014 academic year (when cycle 2 took place) to assess their perceptions about the type of knowledge they developed (Research Question 1) as well as their collaborative experience and then we examined the relationships among TPACK and CoI elements (Research Question 2).
What is the effect of synthetic design activities (individual/collaborative, f2f/on-line) both on simpler and more synthetic types of knowledge?
First, we evaluated the development of particular types of knowledge proposed by TPACK based on trainees’ perceptions by comparing undergraduate students’ of ASPETE knowledge before and after the course, since the particular group completed the TPACK questionnaire at the beginning and at the end of the course. Table 3 presents the mean differences between TPACK scores of undergraduate students of the department of Civil Engineering Educators of ASPETE before and after the training course and the results of the t-tests for paired samples which were performed on them (most differences were statistically significant at the .001 level). These initial results reveal a significant increase in their technological and pedagogical knowledge (TK, PK) as well as in synthetic areas of knowledge including technology (TCK, TPK, TPACK). Additionally, effect sizes were computed for all mean differences using Cohen’s d measure (Cohen, 1988) to demonstrate the magnitude of each difference. Effect size was large for the Technological Knowledge (d = .94), moderate for most other differences, and small for Pedagogical Content Knowledge and Content Knowledge (.41 and .43 respectively).
What relationships can be drawn among TPACK and CoI elements?
In order to assess the efficiency of the organic integration of TPACK and CoI models, we examined potential relationships of the types of knowledge that the three groups of pre-servive teachers developed with the CoI presences (Teaching, Social, Cognitive). Pearson’s correlation coefficients between the TPACK and CoI elements are presented in Table 4.
Almost all coefficients were statistically significant, but it should be noted that statistical significance mainly depends on the sample size (N = 207). Coefficients were mostly small (15 of them were under .30) and only the Cognitive Presence element of CoI exhibited five coefficients with the TPACK elements larger than .30, i.e. Pedagogical Knowledge, Pedagogical Content Knowledge, Technological Content Knowledge, Technological Pedagogical Knowledge, Technological Pedagogical Content Knowledge.
Correlation coefficients under .30, even when they are statistically significant, are too low to be considered. However, Cognitive Presence has low to moderate coefficients with the TPACK elements. Therefore, it can be argued that Cognitive Presence and TPACK have moderate linear relationships between each other.
Conclusions and future plans
As regards the effect of design activities, it is interesting to point out that synthetic, intellectually provocative design activities seem to address, to a great degree, Technological and Pedagogical Knowledge as well as synthetic types of knowledge including technology (TCK, TPK, TPACK), a finding which confirms the need for viewing teacher digital literacy in an integrative way (Angeli & Valanides, 2005; Jang, 2008; Koehler et al., 2007; Wilson, 2003, Ruthven, 2009). On the other hand, Pedagogical Content Knowledge and Content Knowledge are less affected, a finding pointing a) to the need to address audiences with no perceived gaps in these two types of knowledge and b) to the potential of this design for in-service teacher training, as in-service teachers are an audience in constant interaction with PCK and CK through their everyday teaching practice. The most important finding however is the one confirming the increase of synthetic types of knowledge (TCK, TPK and TPACK), as it aligns both with the stated aims of this research and with expressed concerns in the field (Chien et al., 2012).
As regards the relationships among TPACK and CoI elements, the statistically significant difference of coefficients, despite being relatively small, reveals the connection between TPACK and Cognitive Presence as well as the potential for further refining the CoI elements of Teaching and Social presence. Cognitive presence, which was at the centre of the engineering of design challenges exhibited a greater degree of association with TPACK, a finding in line with the need for integration of the two frameworks a) for further elaborating TPACK in different settings and with different audiences (Niess, 2011) and b) for using the CoI model as a tool for predicting and evaluating the joint construction of meaning in online learning settings (Shea & Bidjerano, 2012).
The process of expanding and transforming the existing curriculum revealed a number of issues. The augmented degree of online engagement achieved during the 2nd cycle created the need for constant and sustained moderation, a need not so evident during the 1st cycle. Thus, blended learning including a significant element of online interaction is evidently more demanding, as it calls for the collaboration of the content expert (the course instructor) with an online learning expert (who can also be a f2f instructor, or at least have knowledge of the target group).
Challenging future goals are to compare the pre-service teachers’ perceptions with the evaluation of the group product as a more objective measure, as well as to trace the development of their knowledge through their contributions to the forum, using also qualitative measures to detect critical episodes in their interaction and the effect of these on both TPACK and Cognitive presence. Finally, qualitative content analysis of participants’ contributions in terms of the type of knowledge they represent, in relation to the stage of cognitive presence they develop could further elaborate the relationship between CoI and TPACK.
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The research “Design, Implementation and Evaluation of Blended Learning Scenarios in a Teacher Training Context Accommodating their Individual Psychological Characteristics (BleSTePsy)” is implemented through the Operational Program “Education and Lifelong Learning” and is co-financed by the European Commission (European Social Fund) and Greek national funds.
The authors declare that they have no competing interests.
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