The aim of this research is to investigate the difference between the achievement scores of Iraqi EFL learners in English in online and real-life classrooms. This research is conducted to show some facts about the two teaching and learning environments: online and face-to-face classrooms. The research also shows the cons and pros of each teaching and learning environment. It investigates the impact of each teaching and learning environment on developing students English language: reading, writing, speaking and listening skills.The researcher conducted the current research on 40 Iraqi EFL sixth preparatory students. The students were chosen randomly from different Iraqi schools. They were divided equally into two classrooms: online and face-to-face. The students were distributed to the two groups equally according to their English achievement scores in the final exam of the previous year: fifth preparatory (See appendix A). Both groups were taught the curriculum books: Students Book and Activity Book by the researcher. It is worth mentioning that the method adopted in teaching the curriculum is the communicative approach. The students were pre and post tested to measure their development in English.The overall results revealed that students in both classrooms have improved their scores in English significantly, and there is no significant difference in the gained mean scores between the two groups.