This study, using pretest-intervention-posttest, investigated whether instructing English as a foreign language (EFL) learners' in the use of reading strategies when they read English passages affects their English reading performances. The participants were 51 Turkish learners of English, who were at elementary level of language proficiency, based on the results of the Oxford Quick Placement Test. The whole treatment/control period lasted for 20 sessions during 10 weeks on a Reading course. The experimental group (n = 26) received instruction in reading strategies (i.e., previewing, finding the main idea, scanning, identifying examples, identifying definitions, identifying time and sequence words, reading numerical tables, making inferences, reading statistical tables, distinguishing fact from opinion) and the control group (n = 25) received instruction based on traditional teaching methods (i.e., reading, paraphrasing, translating, and answering the exercises). Data were collected via a reading proficiency test. The result of the independent samples t-test showed that the experimental group significantly outperformed the control one.