Considering the challenges inherent in learning and teaching of summary writing in EFL/ ESL settings, it is crucial to look into various instructional techniques thoroughly. This study investigated the relative effectiveness of three summary writing techniques: Sequence map, answering question, and 3-2-1 technique. To this end, 60 language learners from an English language institute in Ahvaz participated in the study. Before implementing the instructional techniques, a pre-test was administered to gauge the participants' fundamental knowledge of L2 summary writing. Three experimental groups were instructed through the already-mentioned techniques for ten weeks while the control group was given no such treatment. Finally, a post-test was administered to ascertain the effectiveness of such techniques in improving EFL learners' summary writing. The TOEFL-iBT scoring rubric was adopted to score the summaries holistically. Paired sample t-test and ANOVA were run to analyze the data. The findings revealed that the sequence map group outperformed the other three groups in terms of the written summaries. The study further implies that the employment of graphical or spatial representation of textual concepts reduces the complexity and ambiguity of the presented information.
