2. Blended Learning as a Disruptive Teaching Approach
Blended learning (BL), as a form of disruptive teaching, draws on Christensen and Raynor’s insights into how innovative technologies can revolutionize education. This concept can be disruptive because it replaces traditional methods and marks a transformative shift toward a student-centered approach that uses technology to enable collaborative learning [
2]. BL has become very well-established, and its value has been particularly evident in the post-pandemic era [
3,
4,
5].
Today there are many definitions of this educational approach, but here are four of the most cited in BL literature: Graham [
6] defines BL as a system that integrates face-to-face teaching and ICT-enhanced teaching, while Garrison and [
7] define it as the deliberate integration of learning experiences in a face-to-face classroom with online learning experiences. Based on a more recent definition, BL is an instructional method that utilizes multiple teaching techniques working together to promote student engagement and knowledge retention through applied learning [
8]. Of particular significance for our context is the fourth definition, in which Horn and Staker [
9] point out that BL involves three basic elements. The first is that BL is any formal program where students complete at least part of the program through learning in online learning environments where they control the time and pace of learning (second element). The third element of the definition is that the forms and modes of learning should be integrated for students and provide an integrated learning experience. It is this latter element that is the most important part of the definition of BL. The work in the school and in the online learning environment must be connected in such a way that together they form a well-rounded whole that could not function without one or the other [
10].
2.1. Blended Learning Impact on Students’ Learning
The introduction of BL in vocational education can have multiple impacts. Research shows that this teaching approach can improve learning outcomes and engagement [
11,
12,
13] while enabling students to acquire a range of skills and competences that are now considered crucial for success in the labor market [
14] and for functioning in society [
15]. When properly planned, BL can also offer students autonomy [
16] and flexibility [
17]. When students can learn at their own pace and then when it suits them, they are more likely to develop a degree of independence. They may also develop greater intrinsic motivation and become engaged in their learning. Working online, where they have access to a wide range of up-to-date resources, gives them more time, flexibility, and freedom to shape their learning according to their individual needs. A study by Kong [
18] confirmed that appropriately designed digital environments with teacher support can enhance students’ information literacy and critical thinking skills. Research also shows that this approach improves student achievement and reduces dropout rates, which is particularly important for vocational education [
19,
20]. Finally, we emphasize student participation. The quality of learning outcomes can depend to a large extent on student engagement in the learning process and in practical work with the material. Various studies and meta-analyses have shown in the past that learning outcomes are better and more sustainable when students are not just passive listeners or observers, but actively participate in the learning process [
21,
22]. This can be achieved by encouraging individual and group learning activities that allow students to try out their own ideas, integrate the ideas of others and develop a deeper understanding of what they are learning.
2.2. Blended Learning Impact on Students’ Motivation
Numerous research studies have looked at the impact of blended learning on student motivation, and the results generally show good results. According to a study by López Pérez et al. [
23], students were more motivated in a blended learning environment than in a traditional classroom. In addition, Means et al.’s [
24] analysis found that student satisfaction and attitudes toward learning increased when blended learning approaches were used. The personalized, flexible, and interactive nature of blended learning appears to create a learning experience that is responsive to diverse learning preferences and ultimately leads to the positive outcomes mentioned earlier [
25,
26].
2.3. Blended Learning Impact on Students’ Workload
Just as proper planning can improve learning success and motivation, inadequate planning, e.g., too many activities or an inappropriate choice of approach, can have negative effects. Therefore, teachers must ensure that the workload for students does not surpass that of a traditional classroom lesson, as excessive workload can impact the quality of the schoolwork, leading to absenteeism or poor performance. Ibrahim and Ismail [
27] and El Sadik and Al Abdulmonem [
28] point out that workload, which is an often-overlooked aspect of BL implementation, requires special attention when considering BL implementation issues. Teachers often wonder how much time should be devoted to face-to-face teaching and online activities when transitioning to BL. The question is, of course, very relevant because the time component entails a double loop: on the one hand, the teacher must be careful not to overwhelm the students; on the other hand, the transition also entails a greater time burden for teachers. The latter is often the reason why BL programs are not successful [
29]. Napier et al. [
30] find that as workload increases, the chances of success with BL decrease.
Numerous studies have addressed BL, although they have focused primarily on samples of primary, general secondary and higher education. However, there is limited evidence on how BL affects the learning, motivation, and workload of vocational students. In particular, the relationship between teaching approaches and perceived workload in (vocational) education is poorly researched. Therefore, our study aims to contribute to the existing body of knowledge in this area by focusing specifically on and providing more detail about how different instructional approaches in vocational education contribute to these dimensions.
The purpose of our research was to examine how the introduction of BL and different teaching approaches were correlated to perceived student workload, types of learning and motivation. Students included in the study sample participated in the pilot implementation of blended learning and were asked to participate in an online survey. We tried to answer the following research questions:
How are different teaching approaches related to student perceptions of workload?
How are different teaching approaches related to student approaches to learning?
How are different teaching approaches related to student motivation?
4. Results
4.1. Teaching Approaches and Perceived Workload
The correlation analysis in
Table 5 provides a comprehensive overview of how different teaching methods relate to different aspects of students’ perceived workload during BL.
According to
Table 5, the online live sessions displayed moderate positive correlations with mental demand (
r = 0.28,
p < 0.01), effort (
r = 0.22,
p < 0.05), and frustration (
r = 0.25,
p < 0.05). This indicates that engaging in live sessions may potentially be related to increasing students’ cognitive load, effort, and resulting frustration during teaching and learning activities. On the other hand, prerecorded presentations or instructional videos exhibited a noteworthy positive correlation with effort (
r = 0.21,
p < 0.05) and frustration (
r = 0.24,
p < 0.05), thus demonstrating that this method can be connected to more effort required to complete the task, but also the frustration experienced.
When it comes to presentations by the teacher or field experts, there was a moderately strong correlation with “mental demand” (r = 0.33, p < 0.001) and moderate correlation with “temporal demand” (r = 0.24, p < 0.05) and “frustration” (r = 0.24, p < 0.05). A similar trend emerged when examining activities utilizing virtual reality (VR) or augmented reality (AR) technology—akin to expert talks. These activities exhibited a noteworthy correlation with mental demand (r = 0.33, p < 0.001). The correlations associated with alternative teaching approaches were comparatively weaker and generally inconsequential.
4.2. Teaching Approaches and Student Learning
Results in
Table 6 illustrates the correlation between the different teaching approaches and their correlations with various facets of student learning in VET.
Several trends emerged from these data. Live online sessions had no significant correlation with modes of learning. Pre-recorded instructional videos showed a statistically significant moderate correlation with applying (r = 0.23, p < 0.05) and creating (r = 0.21, p < 0.05). Presentations by external experts had weak positive correlations in all learning domains, with the strongest correlation found with creating (r = 0.22). Group projects or online presentations conducted by students were significantly correlated with all learning domains, with a particularly strong positive correlation with applying students’ knowledge (r = 0.37, p < 0.001) and a moderate correlation with memorizing (r = 0.26, p < 0.05), analyzing (r = 0.26, p < 0.05), and evaluating (r = 0.23, p < 0.05).
Formative assessments in the form of quizzes or assignments also had a significant positive correlation with all learning domains and were particularly strong in applying (r = 0.24, p < 0.01), evaluating (r = 0.35, p < 0.001), and creating (r = 0.35, p < 0.001). In contrast, activities involving VR or AR technology yielded only weak positive correlations across all learning domains. Interactive videos showed moderate and significant correlations with memorizing (r = 0.27, p < 0.01), applying (r = 0.27, p < 0.01), and creating (r = 0.29, p < 0.01). Use of online materials for professional skill development correlated significantly with memorizing (r = 0.28, p < 0.01), applying (r = 0.22, p < 0.05), and creating (r = 0.32, p < 0.001). Teacher’s feedback and guidance seemed important since they showed a strong correlation with memorizing (r = 0.33, p < 0.001), applying (r = 0.29, p < 0.01), creating (r = 0.28, p < 0.01), and evaluating (r = 0.24, p < 0.05).
Creating interactive videos showed moderate and significant correlations with memorizing (r = 0.27, p < 0.01), applying what was learned (r = 0.27, p < 0.01), and creating (r = 0.29, p < 0.01). The use of online materials for professional skill development correlated significantly with memorizing (r = 0.28, p < 0.01), applying (r = 0.22, p < 0.05), and creating (r = 0.32, p < 0.001). The approach with online feedback or teacher guidance had the greatest correlation and showed a strong correlation with memorizing (r = 0.33, p < 0.001), applying (r = 0.29, p < 0.01), creating (r = 0.28, p < 0.01), and evaluating (r = 0.24, p < 0.05).
4.3. Teaching Approaches and Student Motivation
Table 7 illustrates the correlations between different teaching approaches and four dimensions of student motivation: interest/enjoyment, effort/importance, perceived competence, and value/usefulness.
Amongst the teaching approaches “online feedback or guidance from the teacher” consistently showed a strong correlation across all four dimensions. The correlation between this approach and interest (r = 0.38, p < 0.001), effort (r = 0.24, p < 0.01), perceived competence (r = 0.39, p < 0.001) and value (r = 0.41, p < 0.001) were all statistically significant and strong. Activities such as “interactive video” and “online materials for developing professional skills” also displayed a relatively consistent and moderate to strong correlation with motivation. For “interactive video activities”, the correlation coefficients were as follows: interest (r = 0.33, p < 0.001), effort (r = 0.23, p < 0.01), perceived competence (r = 0.27, p < 0.001), and value (r = 0.24, p < 0.01). Similarly, for “online materials for professional skills development”, the coefficients were: interest (r = 0.27, p < 0.001), effort (r = 0.20, p < 0.05), perceived competence (r = 0.22, p < 0.01), and value (r = 0.33, p < 0.001). Moreover, “group projects or presentations online” and “students working in small groups” had strong positive correlations with perceived competence (both r = 0.28, p < 0.001).
“Group projects or presentations online” also had a moderate correlation with effort (r = 0.26, p < 0.01) and interest (r = 0.23, p < 0.01), indicating that this teaching approach encourages students to put in more effort. The three teaching methods “live sessions online”, “instructional videos”, and “presentations or talks by experts” showed minimal to limited correlation with the four dimensions of motivation. The correlation between “instructional videos” and effort was nonexistent; however, there was a moderate correlation between “instructional videos” and value (r = 0.23, p < 0.01), implying that students perceive value in this approach even if it does not necessarily generate effort or interest.
5. Discussion
Blended learning (BL) is an approach that exhibits strong applicability to vocational and technical education. Similarly to its implementation at various other educational levels, BL requires a fundamental shift in perspective toward students, who must be placed at the center of educational planning in conjunction with the intended learning objectives. Teaching approaches should be carefully selected, considering students’ prior knowledge, individual interests, and the particular characteristics of the classroom. As part of our study, teachers received systematic guidance on planning and implementing BL, coupled with extensive pedagogical support. Despite the focus on teaching approaches, the focus of our study was on the students’ perspectives to determine their experiences with the BL principles used. We wanted to find out if there were any correlations between the teaching approaches used, perceived student workload, different types of learning, and their motivation in the BL environment.
Our research shows that the way vocational students perceive their workload in a BL environment is influenced by various teaching approaches in distinct ways. We found that approaches such as live sessions, expert discussions, and the use of VR/AR technology appeared to be associated with significant cognitive load (mental demand), effort, and potential frustration, whereas other approaches, such as group work, frequent quizzes, and online professional skills courses were more likely to be related to time burden. Although time is of the essence [
35], when planning, the teacher must be aware that the student’s perception of workload is not synonymous with, but can be influenced to a small degree by, the amount of time spent studying. In addition to the time component, another important realization was that some activities are more strenuous for students, and this must be considered when planning learning activities [
36,
37,
38]. Further research is needed to better understand these relationships and identify strategies to optimize teaching practices to reduce perceived workload while maintaining or improving educational outcomes.
We also examined the relationship between the chosen teaching approaches and the corresponding type of learning. We did this by utilizing Bloom’s classification of learning objectives. The extent to which the learning objective is achieved can be influenced by teachers through the right choice of teaching approaches. Our research shows that active teaching methods such as online group projects, frequent quizzes or assignments, activities with interactive videos, online materials to improve professional skills, and feedback from teachers through online channels are more strongly associated with higher forms of student learning (e.g., applying, analyzing, and evaluating) than other approaches. This finding is supported by previous studies [
39,
40,
41]. Despite the appeal that the use of augmented reality (AR) and virtual reality (VR) can have in education, captivating both educators and students, it is important not to disregard the notable observation from the study that no statistically significant relationship was found between the use of AR and VR and student learning at higher levels.
Finally, we examined the relationship between teaching approaches and student motivation. Earlier research has emphasized the significance of teachers in determining the effectiveness of blended learning, such as the study conducted by Min and Yu [
42] through their systematic review, wherein they found that instructor attributes like attitude, technology skills, and teaching style have considerable effects on students’ achievement and motivation. The latter construct was analyzed in the context of self-determination theory using four different dimensions: interest, effort, perceived competence, and value [
43]. The statistical analysis revealed various significant correlations, with one in particular being the significance of teacher feedback—all four motivational dimensions were strongly correlated with the frequency of feedback and teacher support during BL. The results suggest that feedback and instructor presence significantly influence both student engagement and learning during BL in online academic environments. This finding is consistent with similar studies examining the nature and frequency of feedback provided by instructors [
44,
45,
46] and is particularly significant in our case because, as the descriptive statistics in
Table 1 indicate, this activity was least present during the implementation of BL. Group projects, small group work, and ongoing assessments were significantly related to motivation, mainly through perceived competence. Interactive videos as learning materials were associated with more significant interest in the subject and a heightened sense of competence. Materials aimed at vocational skill acquisition were related to interest and perceived usefulness of the subject matter. Collaborative work has been shown to be an effective tool for increasing student motivation and perceived competence [
47]. In addition, interactive multimedia content such as videos has been shown to increase student interest and engagement, supporting the idea that multimedia resources can promote feelings of increased competence [
48]. Learning professional skills through hands-on materials is also consistent with the theoretical approach to adult learning that emphasizes the importance and application of learning in real-world situations [
49]. The combination of collaboration, multimedia use, and professional development appears to reinforce observed patterns in motivation and perceived competence, despite possible differences in delivery methods and educational environments.
The overall results from our study confirm observations of many authors that teachers need to prepare the pedagogical design carefully enough before the actual implementation [
50,
51,
52,
53]. Hence, the planning phase for implementing BL holds significant importance. Therefore, when integrating BL, it is crucial to allocate ample time for teacher preparation and training. It would be a misstep to anticipate that teachers will adapt to the changes autonomously.
6. Conclusions
We conclude by pointing out some limitations of our study. The survey was conducted with a relatively small sample (106 students) selected in schools where BL was implemented. Considering that schools were selected to participate in the pilot project according to specific criteria, this may have had a crucial impact on both teachers’ attitudes toward the work and students’ attitudes toward the introduction of BL itself, which may have been higher in both groups than would have been the case if the survey had been conducted with a larger sample of students and had included students from schools where there may be different (lower) attitudes toward BL itself as well as different conditions for the introduction of this type of approach.
Although the study has weaknesses, it contributes to understanding the implementation of BL in vocational education. Once BL is fully integrated into the everyday teaching practices of all vocational education programs (VET), there will be a great opportunity to further explore its effectiveness and impact. In the future, it would be particularly beneficial to conduct research with a larger and more diverse group of participants. Including control groups in the study would allow for a more detailed investigation comparing different learning environments and approaches. Validating the results with different approaches, especially qualitative ones, would further deepen our understanding of the impact of BL. This comprehensive research can contribute to a deeper understanding of the issues surrounding BL and enable educators and policy makers to make well-informed decisions that improve the quality and effectiveness of VET education.
When discussing BL, it is important to understand that simply integrating technology into education does not automatically improve learning or foster innovation. The notion that BL is simply about adding more technology or moving live instruction to an online platform demonstrates a superficial understanding that fails to capture the potential for change. Rather, the true essence of BL lies in appropriately planning and integrating appropriate teaching approaches tailored to the content, context, and learners. Only when technological tools are aligned with innovative teaching strategies can BL truly transform education. This requires a profound rethinking of the way we teach and learn. We need to move away from traditional approaches and develop learning experiences that make the most of both traditional and digital resources. It is this combination of different elements, rather than technology alone, that will enable BL to bring about meaningful change and open new possibilities in the ever-evolving field of education.
So, teacher, when thinking and planning blended learning, think twice.