In this paper I reflect on Candela’s work on exploring Mexican undergraduate students’ learning trajectories and itineraries in physics from a time–space perspective. I do this by bringing to attention a novel theoretical framework (Ogawa et al. 2008) to analyze what happens in Mexican and US classrooms of undergraduate physics. I have two purposes. First, in my opinion, by enabling an extended perspective, this theoretical approach is fruitful in the understanding of the phenomena at hand. Second, I aim to extend Ogawa and friends’ efforts of initiating multidisciplinary collaboration among scholars who study learning and scholars who study educational organizations.

From a sociocultural point of view, Candela adopts Nespor’s (2004) perspective that teaching and learning is a complex process in a context of multiple spatio-temporal orders, or scales. In this view, learning is conceptualized as being able to move self and cultural tools through the time–space networks of a discipline. Candela emphasizes that in order for learning to happen, educational organizations construct trajectories for their students including material environments and representational artifacts such as classrooms and curricula, respectively. The author contrasts Mexican physics students’ trajectories and itineraries with those of US students.

Conclusions from the work suggest distinctions between the itineraries of these two groups of students. Mexican students seem to be more autonomous in constructing their own itineraries in physics while US students are forced to concentrate on a pre-determined formal training. The latter have also more limited opportunities to be involved in practitioners’ spaces. Two main factors appear to be influential in Mexican students’ constructions of more autonomous practices in classrooms with more porous walls: the nature of the organizational trajectories of university physics and the cultural features of these trajectories and itineraries.

Undergraduate Mexican physics from a CHAT-IT perspective

Recent elaborations on cultural-historical activity theory (CHAT) (Engeström et al. 1999) and its relation to organizational theories have produced a theoretical amalgam of these earlier ideas. Ogawa et al. (2008) proposed a comprehensive framework to understand learning in the context of formal organizations by combining elements from CHAT and Institutional Theory (IT). IT was originally developed by Leavitt (1965). The efforts of Ogawa et al. seem to have vast potential for opening new avenues for science education research since most science education research is conducted within the context or in relation to a formal educational organization, most often a school or college, as is the case of Candela’s work. The CHAT-IT framework was constructed to account for the elements of organizations that inevitably become important in the social contexts of learning. Organizational elements such as goals, participants, technology and social structure (Leavitt 1965) are seen as common components of the CHAT and IT. The new framework allows one to “link the immediate settings in which learning occurs to the social contexts of organizations and to the social and cultural forces that shape organizations” (p. 84). It builds on Engeström’s theory “by adding elements from IT to reflect how institutions are ‘carried’ to activity contexts” (p. 90). Mutually, the CHAT elements in the framework allow for understanding a possible institutionalized change occasionally initiated by the subjects in the activity system. Ogawa et al. (2008) provide a visual model for the CHAT-IT framework (Fig. 1) and describe its elements and relationships in the following words:

Subjects/participants employ artifacts/technology in their contexts to participate in object/goal-oriented activity. Subjects’/participants’ use of artifacts/technologies is mediated by the norms of the communities/organizations that serve as the context for activity and by their formal structures, which include rules and division of labor. Communities/organizations adopt formal structures that reflect institutions, which are enacted and carried by coercive, normative, and mimetic mechanisms. The addition of institutional elements to the model illustrates that IT contributes to conceptualizing the links among societal values through institutional mechanisms to the core elements of formal organizations such as schools and museums, and thus to activity systems, which are the immediate social and cultural settings for learning. (p. 90, emphases original)

Fig. 1
figure 1

The CHAT-IT framework. Adapted from Ogawa et al. (2008), p. 91

By nature, the CHAT-IT framework seems promising in identifying the organizational and cultural features of the trajectories and itineraries of Mexican physics undergraduate students in Candela’s ethnographic study. Ogawa et al. (2008) claim a mutual relationship between CHAT and IT in terms of analytical power. In their view, just as IT needs CHAT to explain change and transformation, CHAT needs IT to examine activities in the context of formal organizations influenced by institutions through different mechanisms.

The undergraduate physics trajectories afforded to the students by the university in Mexico appear to be different than those in the US. In Candela’s view, “cultural features related to the history of this school and the economic role of physics and technology within a dependent country could be part of the explanation for the differences” (p. 25). An IT perspective would be particularly useful here to explore these features as “IT contributes to conceptualizing the links among societal values through institutional mechanisms to the core elements of formal organizations such as schools and museums, and thus to activity systems, which are the immediate social and cultural settings for learning” (Ogawa et al. 2008, p. 90).

According to Ogawa and friends, schools in the US were modeled after the factory in early nineteenth century when urbanization, industrialization and immigration were happening as the dramatic societal changes. Thus, contemporary US schools still enact the values and practices of this period with structural components such as classrooms, desks arranged in rows and textbooks followed by the teacher and students. Mexican classrooms, on the other hand, become nodes of the disciplinary networks where extended spaces and times are produced. The historical accounts and societal institutions in Mexico as well as the ways these institutions influence educational organizations such as universities is a potential area to be illuminated by a CHAT-IT perspective.

Candela’s work also reveals that Mexican professors’ instructional practices are predominantly the driving force in students’ developing autonomous competence to move along the disciplinary networks such as physics. In the paper it is documented that the professors do not assign a single textbook to be followed, instead, students are encouraged to examine a variety of sources including contemporary research articles as well as yet unsolved physics problems. Problem solving relating to different disciplinary networks, flexible class attendance and collective work leading to new social and professional relationships are among other instructional practices adopted by the physics professors. The activity of the professors, which is teaching physics through extended spaces and times of the discipline, becomes a critical and transformative one in a context of a formal educational organization. Instead of reproducing the factory model of schooling, the Mexican physics professors seemingly engage in non-customary practices of teaching and in this way, act as agents of change.

From the perspective of CHAT, there are two continuously operating processes in an activity system: Internalization refers to “reproduction of culture,” and externalization means creating new artifacts for transformation. The notion of transformation is key in activity theory. Moreover, activity theorists criticize Lave and Wenger’s (1991) theory of legitimate peripheral transformation for its temporal dimension (Engeström and Miettinen 1999) where processes like criticism, innovation and initiation of change are left unquestioned. In the Mexican case, the professors not only assist their students to the community of physics practice but they also strive to break the classroom walls as well as the traditional notion of schooling. Such change at interpersonal level can alter routines and structures, and produce institutionalized change (Ogawa et al. 2008).

Concluding comments

Around the globe for the last two decades, following the lead of the US, efforts have been made to improve science teaching and learning in non-customary ways. For example, an inquiry approach to teaching and learning is considered to best reflect a quality science education, and thus, is promoted in various reform documents (e.g., National Research Council 2000). However, several educational researchers have observed that schools do not alter their basic structures in spite of adopting new curricula and instructional practices (Tressel 1994). Ogawa et al. (2008) imply that traditional school structure following the factory model is one factor constraining reform-based practices. So, how traditional is the university structure in which the Mexican case unfolds? Or, how does a non-traditional approach to physics teaching and learning fit within the existing university structure? As the CHAT-IT framework posits, it is important to understand the historical development of the Mexican university as an educational organization and the institutional influences on this development that serve as the bedrock of the educational opportunities afforded.

Second, the case of the Mexican physics professors is promising as a potential contribution to a less-researched area. According to Ogawa et al. (2008), “It is difficult to find studies that document instances where subjects or participants have transformed organizations, let alone institutional environments, by altering their immediate activity systems.” (p. 92). In this respect, the CHAT-IT framework is a viable lens to see if Mexican physics professors could be regarded as agents of change whose practices contribute to not only breaking classroom walls but also to transforming the organization and to also affecting future activity systems.