Exploring identity construction in team teaching: The case of Iranian student-teachers

Abstract The present study examined the professional identity development of five student-teachers in the context of team-teaching. Data were collected from stimulated recall sessions, semi-structured interviews, and reflective reports, which were analyzed through thematic analysis. Findings indicate that the student-teachers’ professional identity was shaped by meaningful cooperation with their mentor and peers. The student-teachers progressed from team-focused to self-focused professional identity, indicating professional development, self-regulation, and substantial gains in their satisfaction. The study provides implications for teacher educators to use team-teaching in their teacher professional development programs.


Introduction
In every attempt for the success of education, the working practitioners as well as studentteachers deserve due attention. For developing a professional teacher, it is required to develop some identities in a student-teacher to move toward more self-regulation (Sachs, 2001). According to Burns and Richards (2009), identity construction involves how individuals catch sight of themselves and how they represent their roles in different contexts. In this vein, Richards (2011) defined identity as "the differing social and cultural roles teacher-learners enact through their interactions with lecturers and other students during the process of learning" (p. 14).

ABOUT THE AUTHORS
Mohammad Aliakbari is Professor of Applied Linguistics at Ilam University, Iran. His areas of interest embrace SLA, teacher education, educational psychology, and sociolinguistics. He has published extensively in scholarly journals, including Journal of Pragmatics, Educational Psychology, System, and International Journal of Applied Linguistics. Peyman Valizadeh graduated in Master of Applied Linguistics from University of Zabol. He is interested in teacher education, teacher identity, digital agency, and language assessment.
As a contextual element, team-teaching is argued to provide a venue for novice teachers to develop professionally (Gardiner & Robinson, 2011). Team-teaching refers to the engagement of two or more teachers at the same time in the same class (Carpenter et al., 2007;Crow & Smith, 2005;Murata, 2002). This engagement results in teachers' professional and personal growth (Tsybulsky & Muchnik-Rozanov, 2019;Jang, 2006). However, despite the benefits associated with team-teaching for developing teachers' professional identity, there are few studies addressing teacher identity construction in the context of team-teaching, which is the focus of the current study. Accordingly, the present study is an attempt to specify various usage in conducting teamteaching in different teacher training courses and teacher professional development programs.

Team-teaching
Team-teaching can be defined as the practice of "two or more teachers in some level of collaboration in the planning, delivery, and/or evaluation of a course" (Baeten & Simons, 2014, p. 95). The main focus of team-teaching process depends on the collaboration, engagement, and participation of teachers (Mandal et al., 2019). According to Wassell and LaVan (2009), both sharing social interaction and field experiences enable student-teachers to critically review their own practices as they learn to teach.
In the team-teaching process, mentors play an important role. With the help of mentors, student-teachers can learn better as compared to working by themselves (Gardiner & Robinson, 2011). Student-teachers with mentors can achieve higher levels of performance and they receive help and support from team members (Gardiner & Robinson, 2009). The key element in mentorship in team-teaching is to develop good professional relationships in team-teaching through the mentor's feedback on a group and individual levels of team-teaching) Mandal et al., 2019). Teamteaching (i.e., collaboration with other student-teachers and a mentor) is advised to be a valuable strategy for teacher education programs (Richards & Farrell, 2005).
In the light of various studies in team-teaching in different context adequate empirical teamteaching projects in Iran offers a fruitful opportunity to examine the feasibility of team teaching to address the pending needs of learners. In the context of Iran, different studies were carried out in team-teaching. Different studies in Iran explored the efficacy of team-teaching on students' proficiency (Aliakbari & Bazyar, 2012), on public school students' performance (Aliakbari & Mansouri Nejad, 2010), and on students' reading comprehension (Aliakbari & Jaber Khales Haghighi, 2013). Even though the literature of these studies showed the significant effectiveness of team-teaching in different contexts, the results of these studies showed no significant changes in the students' proficiency, performance, and reading comprehension. However, in other studies, more significant changes and efficacy were recorded through using team-teaching in different classes. In term of reading comprehension proficiency, Haghighi and Abdollahi (2014), Mohammad Hassani Soudmand and Ahour (2020), and Moradian Fard and AghaBabaie (2013) found out team-teaching enhances the reading comprehension of the students. More recently, Khoshnodifar et al. (2020) and Narmashiri et al. (2021) investigated the effect of team-teaching on the students' academic performance and motivation. They found that team-teaching has a significant efficacy on students' performance and motivation. Although acceptable number of studies conducted in Iran, few, if any, studies explored team-teaching efficiency among Iranian English teachers, especially in term of their identity construction during team-teaching programs.

Teachers' identity construction
Defining identity in general, as well as professional identity specifically, has always been a problematic issue. Hence, cognitivists claim that identity is constructed, not ready-formed. Moreover, the socio-constructivist theory views identity as constructed in light of contextual idiosyncrasies since teacher identity is a social phenomenon that can be constructed, reconstructed or developed in a social environment. It is also argued that teacher identity is dynamic and multifaceted and it can be affected by different factors such as context, experience, beliefs, and personal attributes (Richards, 2021;Richardson & Watt, 2018). Moreover, in a relatively more comprehensive interpretation, teacher identity is defined as "teachers' dynamic self-conception and imagination of themselves as teachers, which shifts as they participate in varying communities, interact with other individuals . . . in social contexts" (Yazan, 2018, p. 21).
Developing and evolving in a professional context, a teacher's identity is shaped and reshaped in interaction with others and "negotiated through experience" (Sachs, 2005, p. 15). Hence, it can be argued that identity is socially constructed, as it is usually defined considering a person's social relations and participation within the community. Hence, teacher identity construction and teamteaching are theoretically supported by Vygotsky's (1978) and other sociocultural theories of human learning which adequately "recognize the inherent interconnectedness of the cognitive and the social" processes of learning" (Johnson, 2009, p. 13) processes of learning. In sociocultural theories, human learning is defined "as a dynamic social activity that is situated in physical and social contexts, and distributed across persons, tools, and activities" (Johnson, 2006, p. 237). On the other side, Lave and Wenger's (1991) Community of Practice (CoP), along with other sociocultural theories such as situated learning theory and action theory, supports teachers' professional identity construction within team-teaching contexts. According to Wenger (1998), "engagement in social practice is the fundamental process by which" individuals learn and socialize into their desired communities (p. 1). In the process of becoming a member of a community, the teacher can take on many sub-identities based on context and relationships.
Some studies have focused on the effects of a teacher training course on teachers' professional identity. As an example, by gathering data via reflection and interviews, Abednia (2012) showed that even a short teacher training course can influence the professional identity of teachers. This finding indicates that changes in teacher identity can be triggered by interaction with tutors and peers in the immediate environment. In another study, Cattley (2007) showed that reflection writing in a teacher training program has significant effects on the student-teachers' identity. On the other side, Maclean and White (2007) used video reflection for investigating identity construction of pre-service and experienced teachers. This study claimed that reflection increases confidence, enthusiasm and professional learning in teachers' identity. Moreover, Mirzaee and Aliakbari (2018) explored an Iranian EFL teacher's identity formation from a social ecology perspective through the critical events in the teacher's life history. The study showed the construction of the teacher's sense of identity and agency within the given sociocultural milieu.
Despite abundant research conducted on teacher identity construction, few studies have focused on changes in the identity of student-teachers during team-teaching in the field of English Language Teaching (ELT) as the focus on this study is specifically ELT teachers. In the recent study of Tsybulsky and Muchnik-Rozanov (2019), a team-teaching framework was conducted in science classes by using a project-based learning (PBL) approach. Their research findings showed how using PBL team-teaching in science classes helped shaping student-teachers' professional identity and how professional growth, empowerment, and gains in student-teachers' self-confidence increased.
Recent research works (e.g., Eslamdoost et al., 2020;Karimi & Mofidi, 2019;Mansouri et al., 2021) indicated that Iranian English teachers are likely to face challenges that negatively influence their identity due to multiplex of sociocultural factors. Despite these robust studies, further research is needed to show how English language student-teachers' identity is constructed in team-teaching classes. To shed light on this issue, the present study was intended to investigate how studentteachers' identity buffeted and shaped as a team teacher through their engagement in a teamteaching course in Iranian EFL context. Stated otherwise, this study aimed at investigating how team-teaching can help student-teachers construct the identity of an autonomous and selfregulated teacher. Accordingly, the following research questions were formulated: 1. How is teacher identity reconstructed as a result of engagement in team-teaching?
2. to what extend can engagement in team-teaching promote teacher identity reconstruction as an autonomous and self-regulated teacher?

Context and participants
The study was carried out in the summer of 2019. An English teaching institution that followed Communicative Language Teaching (CLT) method for learner was selected for this research. . The institution followed team-teaching policy for its teacher education programs and different teacher training courses based on team-teaching were held for their advanced language learners in recent years. As many classes in different ages and levels were being held in the institution for English learners, a class which included 30 elementary students with the age range of 6-10 was selected. According to the institution policy, the new series of Tiny Talk books were implemented and the teaching procedure were based on CLT. The course was held in two months. In addition to the team-teaching course (10 sessions), five other sessions were allocated per each teacher to teach in individual classes (two sessions per week).
As some advanced language learners in the same institution were volunteer to teach English as their part-time job or their future career, the institution decided to hold a teacher professional development program to train the participants as student-teachers, among them. Five studentteachers were recruited as the subjects of this study. They were selected through a maximum variation strategy of purposeful sampling (Patton,) in order to have as various and much information as possible whose names are pseudonym in the research. The touchstone for choosing the teacher participants was their general language proficiency. According to Common European Framework of Reference for Languages (CEFR) level, their general English was decided to be at least B2 (according to the Oxford Placement Test) in order to participate in this study. Participants had no or not enough experience in EFL teaching (see , Table 1). To observe the ethical principle, especially about the videos which they did not like to be shown anywhere, a consent was signed. In addition, a professional mentor was invited to manage the

Design and data collection
To have as various and much information as possible, case study design (Yin, 2013) was selected. Moreover, an in-depth description of what happened in these five student-teachers' experience in team-teaching classes for identity reconstruction to be autonomous teachers were addressed. To collect the data, semi-interviews, video recordings, stimulated recalls, and teacher reflective journals were used.

Semi-structured interviews
Before the team-teaching program, the student-teachers were interviewed to explore their identities. This interview took more than one hour for each student teacher. In addition, after each 15 sessions, a short semi-structured interview was conducted with the participants to describe their feeling, their new experiences in the class, the challenges of the class, and the changes in their cognition, attitude, and identity (see Appendix A for the items). Overall, 15 interviews were conducted which lasted 15 to 20 minutes were recorded for data analysis. The interviews were both in English and Persian in order to be as informative as possible. .

Stimulated recall sessions
As an introspective research methodology, stimulated recall sessions were used to examine what the participants thought about their teaching practice (Ryan & Gass, 2012). 15 sessions (10 for team-teaching and 5 for individual teaching sessions) were recorded in order to be used in the stimulated recall sessions. 24 hours after each class, the student-teachers were invited for the stimulated recall sessions. They started watching the videos to recall what happened in the class and to elicit their reflections and they paused the video wherever they find it interesting and controversial. They were asked to talk about their feelings, performances, and the reasons of their action. The items are given in Appendix B. These sessions were useful to find out the process of their identity development.

Teacher reflective journals
Reflection journal is a decent instrument to help the student-teachers to reflect their identity reconstruction (Cattley, 2007;Tsybulsky & Muchnik-Rozanov, 2019). After each stimulated recall session, the participating teachers were asked to write 3 to 5 pages of reflective journals (McKay, 2009) in which they were to describe their experiences during class sessions and their reflections on their performances. Some questions were prepared (see Appendix C) to guide them about the content and entries of journals, and to encourage them to answer some questions about experience, performance, and development in the team-teaching classes.

Data analysis
The data featured in this study were analyzed inductively to examine the meanings people assigned to their expressions (Spradley, 1979), and to adequately record the themes grounded in the data (Flick, 2014). To suit this purpose, the videos and the audio recordings (made during interviews, teaching sessions, and stimulated recall sessions), were transcribed verbatim and translated into English (Temple & Young, 2005). After reading and analyzing data cyclically, the Constant Comparative Method outside of grounded theory was used (Fram, 2013) as this method "combines systematic data collection, coding, and analysis with theoretical sampling in order to generate theory that is integrated, close to the data, and expressed in a form clear enough for further testing" (Conrad, Neumann, Haworth, & Scott, 1993, p. 280). Initial/open coding and focused coding (Charmaz, 2006) were used in the first and second cycles of coding respectively. During coding, the researchers wrote analytic memos to note their thoughts and interpretations (Saldaňa, 2009). The transcript of the study was codified in 54 excerpts which 17 of them are retrieved from stimulate recall sessions, 13 of the from interviews, and 24 of them from reflection journals. To ensure the trustworthiness of the study (Saldaňa, 2009), two measures were taken; member checking was utilized by asking the participants to review the transcripts of their interviews and, the researchers worked as a team to analyze and interpret the data.

Findings
The purpose of this study was examining the identity reconstruction of student-teachers engaged in team-teaching and how team-teaching helped student-teachers teach individually. For this purpose, the researchers categorized identity construction of the student-teachers based on the two factors: teacher identity construction as a result of engagement in team-teaching, and exploring how team-teaching may help student-teachers to be autonomous and self-regulated teachers.

Teacher identity as a result of engagement in team-teaching
To address the first question, the identity of the student-teachers was explored before the teamteaching through structured interview. In this interview, the student-teachers elaborated on their interests and difficulties, and their cognitions about teaching. This initial interview helped the researchers to find out the pre-identity of the student-teachers before starting the course in order to understand what they are thinking and feeling about teaching English. On the other side, this initial interview was useful to compare any changes in the teacher-students' identity during the team-teaching course.

Interests and difficulties of teaching
The student-teachers stated that they had little experience in teaching. They were only advanced level students who had no or a little experience in teaching English. Because of their little experience in teaching, it was required to examine their identity about teaching before starting the team-teaching course to help researchers understand how their identity constructs during the study. Shahin said "sometimes I teach English to my younger brother though I am not sure about my teaching" (Shahin; The Initial Interview; Before Team-Teaching). Moreover, some of them desired to be an English teacher: "I really like teaching any subjects especially English" (Yekta; The Initial Interview; Before Team-Teaching).
Although they liked teaching, they considered it as a difficult task: "I like to teach any subject, but when I am thinking about it, I feel it is not an easy job" (Nima; The Initial Interview; Before Team-Teaching). The difficulty was also viewed in light of their little knowledge about teaching. As Darya said "I know what the subject is about, but I don't know how to deliver it to others" (Darya; The Initial Interview; Before Team-Teaching).

Student-teachers' cognitions about teaching
The initial interview showed that the student-teachers' cognition was shaped traditionally about teaching and the roles of the teacher at class. In this interview, they stated that they were taught based on traditional methods such as Grammar-Translation and Audio-Lingual methods. They, mostly, had more emphasis on translation and repetition in their beliefs about teaching. For example, Shahin believed, "I think repeating is the best way to teach kids. Because when I was a language learner, the teachers just repeated over and over (Shahin; The Initial Interview; Before Team-Teaching). Darya, also believed in over repetition of the chunks: "I believe students need to repeat a chunk over and over after their teachers to learn the language fluently (Darya; The Initial Interview; Before Team-Teaching). When the researchers asked how they wanted to teach a word, most of them said "by translating". This piece of evidence illustrated their cognition had been traditionally shaped.
On the other side, when they were asked about the role of teacher in class, the majority had the same idea that teacher is the high authority of the class. They believed the teacher is the most knowledgeable individual in the class and students need to trust him/her. Yegane's, for example, believed in the high authority of the teacher and said: "I believe every student must do whatever the teacher says . . . . . . she knows what to do is better" (Yegane; The Initial Interview; Before Team-Teaching).
The initiation of the course was accompanied by confusion, anxiety, and low mutual support between the student-teachers. These challenges gradually turned into learning new strategies and approaches from their peers and the mentor, as well as, more collaboration between them. It, finally, resulted in creating two significant identities of teacher as a supporter and teacher as a collaborator.

Confusion, anxiety, and low mutual support
The initial sessions started with anxiety and confusion among the student-teachers and the learners. Many things were new to them. They did not have enough formal teaching experience in public classes. Moreover, they had rarely seen two or more teachers teach at the same time and in the same class. They did not know how to initiate the class. This transition is natural as teachers both students and teachers are confused in the first sessions (Valizadeh, 2019). This confusion was also found among students in Aliakbari and Bazyar's (2012). As well as the previous studies, this study showed the confusion was dominant for both teachers and students, as the extracts 5-8 show: "At first, I didn't know how to start" (Shahin; Reflection Journal; Team-Teaching; First Session); "I was ok before entering the class. As I entered, I was confused and I didn't know what to do" (Yekta, Stimulated Recall; Team-Teaching; First Session); "I think students were confused too. They haven't seen several teachers in the same class. They have been a little shocked, I think (Nima, Stimulated Recall; Team-Teaching; First session); "Today, in the first session of teaching, I felt confused and embarrassed (Yegane, Interview; Team-Teaching; First Session).
Gender pressure was an important factor for the student-teachers' anxiety. As the teachers were 18 to 20 years old, they did not use to be in the same class with different genders, so they faced difficulty regarding gender pressure. It was a little difficult for them to work with each other simultaneously. Even though team-teaching requires preparing, teaching, and evaluating cooperatively, this factor of anxiety caused difficulty, as extracts 9-10 show: "I didn't feel well when I saw two of my peers are boys" (Yegane; Reflection Journal; Team-Teaching; First Session); "It was really difficult. I wasn't very relaxed with my peers because most of them were female" (Nima; Reflection Journal; Team-Teaching; First Session).
In the initial sessions, the participants could not support each other properly and there was the least collaboration among them. The classes looked like chaos and disorder. The analyses of the extracts 10-13 showed that the student-teachers faced this problem: "we are not balanced as a team. We walked a lot in the class . . . everything was chaos . . . and it affected our teaching" (Shahin; Stimulated Recall; Team-Teaching; Second Session); "One important thing about this session is that teachers must be more coordinated. That was a problem that everyone suffered from. (Darya; Reflection Journal; Team-Teaching; Second Session); "We didn't follow a path. No one supported each other. I got a little tired" (Yekta; Reflection Journal; Team-Teaching; First Session); and "It was a rich experience but we were not ready. I think it is because of not having a strong lesson plan" (Yegane; Reflection Journal; Team-Teaching; First Session).

Familiarity with some strategies and approaches
The confusion, anxiety and low mutual support among the student-teachers gradually decreased. Through communication with the mentor and peers, the student-teachers obtained a deal of valuable knowledge about new approaches of individual factors like individual differences, age and anxiety, as well as technical factors like communication strategies and learning strategies, and environmental factors like social context and educational context. For instances, Yegane learned from Yekta how to teach physically a word, a phrase, or a chunk "I saw Yekta teaching 'sit down' and 'stand-up' by acting physically and she asked learners to do the same. I found out it as a good technique to teach words and phrases" (Yegane; Reflection Journal; Team-Teaching; Fifth Session). In addition, Shahin learned from Yegane how to teach colors by real objects like the students' clothes. "I noticed that relating the lesson to real-life would make the lesson funnier and more interesting. For example, I saw that Yegane pointed to her dress and asked about the color. I did the same and I thought it might be interesting" (Shahin; Reflection Journal; Team-Teaching; Fourth Session), and also Nima had no idea about how to teach alphabets in English. He learned it from his peers. The thing which was interesting for him was the example they used in teaching alphabets. Exemplification was the technique he was interested in "My peers used some examples to teach Alphabet. I found it useful and I did the same" (Nima; Interview; Team-teaching; fourth session). Despite the expected changes in the student-teachers' identity in the first sessions, no significant alterations were seen. However, the findings showed that their identity would gradually construct by continuing the team-teaching program in further sessions.

Teacher as a supporter and a collaborator
Although the course started with some difficulties, challenges, and confusion, and also, no significant changes were observed in their identity, gradually the student-teachers' identity started constructing by more cooperation with the mentor and peers. In this sense, the student-teachers progressed remarkably through communication with their peers and mentor and two significant identities were developed in the student-teachers, which are teacher as a supporter and teacher as a collaborator.
Through interaction with peers, the student-teachers' confidence increased because of their peer support. Gradually, the identity of "teacher as a supporter" was shaped in them. They could cover each peers' weaknesses by asking questions and observing each other's performance in class. The analyses show how this collaboration influenced identity reconstruction, and how the first mentioned chaos reduced (Excerpt 16-18): "I thank God that we could teach better and students could learn better. We, teachers, supported each other perfectly" (Yekta; Stimulated Recall; Team-Teaching; Seventh Session); "One advantage of team-teaching is that teachers can help you and cover your week points with the peers' and the mentor's support" (Darya; Reflection Journal; Team-Teaching; Ninth Session); and "We didn't have the previous chaos. We could teach well" (Yeganeh; Stimulated Recall; Team-Teaching; Ninth Session).
The final element of the student-teachers' identity reconstruction by the peers was the enhancement of the sense of collaboration among the peers which can be called "teacher as a collaborator". They learned different technics and strategies by their collaborations with the mentor and peers. Beside their view about teaching and learning, they had been a collaborator teacher who was able to work in a team. The sense of teamwork is an important requirement for teachers in team teaming classes. As the excerpt 19-21 show: "In this session, teachers had more collaboration with their peers. I think I am having a collaboration sense as well" (Yekta; Reflection Journal; Team-teaching; fifth session); "In contrast to the previous session, we had a better collaboration" (Yegane; Reflection Journal; Team-Teaching; Seventh Session). The results showed that student-teachers' identity changed to have more collaboration with their peers.

To what extend team-teaching can help student-teachers to be autonomous and self-regulated teachers
In order to find answer to the second question of the study, the student-teachers were invited to individual teaching classes to find out how team-teaching helped them to be autonomous and self-regulated teachers. In other words, the researchers were kin to find out if the studentteachers progressed from team-focused to self-focused professional identity, indicating professional development, self-regulation, and substantial gains in their satisfaction.
After ten sessions of team-teaching, the student-teachers expressed their readiness for teaching individually. As they were getting more professional in teaching, they were more satisfied and more eager to teach individually. According to excerpt 22-24, they believed they were more professionally developed to take such a risk: "Each session I'm getting better. I feel I can manage the class by myself and communicate with the students easily" (Yegane; Reflection Journal; Team-Teaching; Eighth Session); "I feel, I was getting more independent each session. I like to teach independently in class" (Yekta; Interview; Team-teaching; Eighth Session); and "I think I'm well enough to teach alone. I wish I were alone in the class" (Shahin; Reflection Journal; Team-Teaching; Seventh Session).
Anxiety was almost a natural phenomenon among teachers, especially when they wanted to start their career. The student-teachers had relatively higher levels of stress at the beginning of the class: "At first, I had a little stress but after a while, I got better" (Yegane; Stimulate Recall; Individual Teaching). As they started teaching and used their team-teaching experiences, they felt at ease and relaxed. They could have good control in managing the class and teaching. They claimed that being in team-teaching classes had the highest influence on their anxiety and class management: "I was so relaxed and I had no stress because I have done it before a lot. During the team-teaching course, I have been 10 times in class and my anxiety reduced a lot. I felt no pressure" (Darya; Interview; Individual Teaching). Moreover, the identity reconstruction of studentteachers led to becoming more autonomous and self-regulated to teach individually. As Darya mentioned in excerpt 25, she could not imagine how team-teaching helped her to teach individually: "Team-teaching made a revolution in my attitude toward teaching English. If I wanted to start teaching individually, I would have an incredible stress and I couldn't handle it" (Darya; Reflection Journal; Individual Teaching). On the other side, Yegane claimed that if she were not in the teamteaching course she could not teach individually, and if she taught, she would have a large number of difficulties and she would teach traditionally: "I loved teaching, but I didn't have a true understanding of teaching. If I taught without participating in the team-teaching course, I might blow it up and teach traditionally as the way I had been taught" (Yegane; Stimulate Recall; Individual Teaching).
Other evidence from other student-teachers showed a consistent claim about teaching individually. Shahin, Yekta, and Nima directly showed their satisfaction and claimed that they are ready to teach individually without assistance from others: "Finally, I can say, yes I can teach individually" (Interview; Individual Teaching), "I'm happy that I'm able to teach individually now" (Yekta; Interview; Individual Teaching), and "In this session, I could do whatever I wanted. I mean I was able to teach individually and manage the class" (Nima; Interview; Individual Teaching).

Discussion
The purpose of this study was to figure out the identity reconstruction of five novice teachers as a result of their engagement in a team-teaching practicum in an EFL context, and also, how teamteaching helped them to be autonomous and self-regulated teachers. To meet this aim, data were collected before, during, and after the team-teaching engagement. Before team-teaching, the student-teachers had little experience in teaching and also their cognitions were traditionally shaped. The first sessions of team-teaching started with challenges such as anxiety, confusion, and low mutual supports. The literature shows that these challenges are common in the first sessions of each team-teaching (Gardiner & Robinson, 2011;Leavitt, 2006) After three to four sessions, student-teachers gradually overcame these difficulties, and their anxiety and confusion reduced remarkably when they entered a new phase of team-teaching and they had got used to the class context better. This is in line with Dee (2012) as he noticed that, student-teachers obtained a great deal of valuable knowledge about how to teach (). The findings along with other studies showed that collaboration with peers has a significant effect on the teachers' professional identity reconstruction (Gee, 2011a(Gee, , 2011bTsybulsky & Muchnik-Rozanov, 2019). Likewise, Mirzaee and Aliakbari's (2018) findings are in same line with those of the present study since they also showed that teachers' identities were shaped through engagement in various professional communities and activities.
To answer the first question, the student-teachers' identity construction was investigated. During team-teaching, new changes were initiated in student-teachers' behavior, identity, development, and attitudes. These changes resulted in familiarity of the student-teachers with some strategies and approaches and reconstructed two identities in them. Student-teachers learned some strategies from their peers such as using real objects in teaching colors, teaching chunks by games, and using different examples out of the book for teaching alphabets. This finding not only shows the significance of team-teaching in learning some strategies and approaches of teaching, but also it indicates how it reconstructs identity among the student-teachers. The main reason for this identity reconstruction might be the interaction between the peers and the mentor. In this sense, the student-teachers may develop novel identities through interaction with peers which are "teacher as a supporter" and "teacher as a collaborator". The great support can be done by the team-teaching partner, a peer, at the same level (Shin et al., 2007). They had this opportunity to make it easier to share their knowledge to solve the challenges during their teaching (Kamens, 2007). Since the student-teachers achieved the identity of a supporter, the teaching experience became less stressful (Dee, 2012). Moreover, team-teaching enhanced friendship and deepened the relationship among student-teachers to have better collaboration (Dee, 2012;Jang, 2008). Generally, by experiencing team-teaching, the student-teachers found the identity of "teacher as a supporter" and "teacher as a collaborator" which are the result of the peers' interaction.
To address the second question which asked whether team-teaching helps the student-teachers teach individually or if they can be autonomous and self-regulated teachers. Some studies claimed that team-teaching would not help student-teachers to teach individually (Gardiner & Robinson, 2009), as it makes them dependent on their peers and mentor, and there is always someone to support them (Gardiner & Robinson, 2011). However, this study showed that the student-teachers are identically and cognitively ready to teach individually. To examine their autonomy and selfregulation, the researchers requested each individual student-teacher to teach individually. This action was performed to understand if their identity reconstruction is stable or not. The result showed that the student-teachers not only did not have anxiety, but they were also ready to teach individually. It can be supported that if the team-teaching course is conducted professionally for student-teachers, we may witness their progress to teach individually. Team-teaching both makes the novice teachers capable to teach individually, and teaches them enough professional strategies and new approaches of teaching. This examination not only proved their ability to teach individually, but it also clarified that the teachers' autonomy and regulation identity were reconstructed enough to teach individually. Contrary to the other studies (Gardiner & Robinson, 2009, 2011 which claimed that team-teaching makes the novice teachers dependent on others, and that it cannot well professionally develop the student-teachers, the present study indicated that the student-teachers were not dependent on their peers and mentor, and that their identity was efficiently and professionally developed to teach individually.

Conclusion
This study investigated how identity construction of five student-teachers were buffeted and shaped their engagement with their peers in a team-teaching course. Additionally, the study examined how team-teaching helped student-teachers construct the identity as an autonomous and self-regulated teacher.
The findings showed the student-teachers had a little knowledge about teaching and their cognition was traditionally shaped when the study was conducted. During the team-teaching, they had some challenges in collaboration and supporting each other, gradually they learned a number of new strategies and approaches about teaching, and also their identity of teachers as supporters and teachers as collaborators were shaped. After team-teaching, their performances were examined in individual teaching classes, the evidence of which supported the autonomous teacher identity in them.
The findings promise some practical implications for different groups of stakeholders in general education and L2 education in particular. Policymakers, for example, can make use of the findings to develop the educational policy and consider the merits of team-teaching. In addition, teacher educators may use this study to professionally contribute to novice teachers' development in team-teaching courses. School leaders can implement team-teaching courses to enhance the collaborations between their English teachers. Teachers will be more familiar with new strategies through cooperation with other teachers and mentors. Finally, teaching and learning would be more convenient for both teachers and learners.
To care for the limitations of the current study, further research is required to document the teachers' performance with more rigorous research methods. Considering the fact that, the level of the language learners in the present work was pre-elementary and the age range was 6-10, the result and the situation might be different from the higher levels and older students. We believe that team-teaching should be assimilated within teacher professional development programs, as it is one of the steps toward preparing autonomous teachers with high professional identities.