This study evaluates the English language Junior Secondary School Curriculum. Teachers and students were randomly selected from 21 (Public, Private and Federal) Schools in Lagos. The study investigates the academic performance of students based on the teachers qualifications, the academic performance of students based on the available (used) and unavailable resources, the identified difficult aspect of English language, methods of teaching English language and finally the academic performance of students and their gender status. The findings reveal that the academic performance of students does not entirely depend on the qualifications of teachers; the method used in teaching English language; the availability of instructional materials but on the proper implementation of the Curriculum. It recommends that English teachers should make sure the Curriculum is properly implemented. Parents should encourage students to speak the language and that government should provide resources for the teaching of the language.