This was a qualitative study that used the procedures of case study design while incorporating ethnographic techniques of interviewing and non-participant observation in classrooms with six selected students, six teachers, and eight interviews of selected administrators and staff members in one middle school in a large Texas urban school district. The purpose of this study was to understand the educational experiences and perceptions of selected immigrant students and their mainstream teachers. Following the method of case study design, the educational experiences of English Language Learner (ELL) students were examined in the naturally occurring context of the school and the classroom. Because the goal of case studies is to understand a given phenomenon from the perceptions of the participants (referred to as “emic” perspective) all participants were interviewed in-depth in order to understand their unique perceptions. The study took place during a five-month period in the spring of 2002. Data were analyzed concurrently during data collection and were framed by Geneva Gay's (2000) characteristics of culturally responsive teaching. The findings and interpretation of data are divided into three parts that encompass the results of the five research questions that guided this study. Part one presents the teachers' perceptions and addresses the themes that arose from research questions one and two: what are teachers' perceptions of the academic problems facing (ELL) students as they enter the mainstream classroom? What instructional practices do regular teachers use to meet the academic needs of students? Part two presents the students' perceptions and addresses the findings from research questions three and four: what are (ELL) students' perceptions of the academic challenges facing them in the mainstream classroom? What are the ELL students' perceptions of the instructional practices used by mainstream teachers to meet their academic needs? Part three addresses the fifth research question that guided this study: What administrative policies and procedures are in place in the school and district to meet the educational needs of ELL students?