The qualitative descriptive phenomenological study aims to identify, describe, and analyze educational processes and best practices from the bilingual teachers' perspectives; that help improves the teaching of reading in the elementary level of English Language Learners classrooms in Puerto Rico. This research assessed the contribution of participating teachers as an essential element in describing the current educational scenario and the most effective reading comprehension strategies practices used to teach reading in the ELL classrooms. It is, revealed the characteristics necessary to become a good reader and the factors that influence an improvement of reading comprehension. In addition, encompassed research on the following teaching strategies and theories that increase reading comprehension: activating prior knowledge, predicting, questioning, visualization, monitoring, drawing inferences, summarizing, retelling, Read Aloud, Cooperative Learning, Graphic and Semantic Organizers, Integration of Technology, Metacognition, Summarizing, Survey, Question, Read, Recite, Review (SQ4R), and Balanced Literacy Approach. The researcher developed five research questions focused on teacher preparedness, classroom environment, implementation of reading comprehension strategies and, time on task. The criterion sample included six individual one-on-one interviews, and two focal groups. The data collection was conducted through questionnaires, semi-structured interviews, and the researcher's log. Researchers' conclusions indicate that without proper comprehension skills, students cannot understand what they read. The point of reading is not to make sounds in the brain or out loud, but rather, to understand important lessons, stories, and arguments. The primary goal of reading comprehension instruction is to help students develop knowledge, skills, and experiences they must acquire if they are to become competent and enthusiastic readers in all learning endeavors. The researcher can conclude based on the information gathered; those educators working in bilingual schools are educationally prepared to teach students in the PRDE. Only a few have been certified in bilingual education by the PRDE, which is required to teach in bilingual schools. It can also be concluded that there is no correlation between the years of teaching experience and the effectiveness in the implementation of different reading comprehension teaching strategies. Moreover, classroom environment and teaching-learning are vital factors that can either support or obstruct the proficiency levels of Reading Comprehension of ELLs in bilingual schools. Additionally, this study shows that although teachers received professional development; none of them had received workshops design specifically to the process of teaching reading comprehension. The researcher recommends that in-service teaching professional development should include Gender-based learning theories, the Graduated Student Profile of PRDE, Reading Comprehension Teaching Strategies, and the incorporation of parents in their children's comprehension learning process. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]