The Effects of using semantic mapping strategy on students' ability to recall new English vocabulary at Qassim University, Saudi Arabia Waleed Al Abiky, PhD ABSTRACT: Vocabulary is a vital part of language teaching, and students' forgetting what they have learned and memorized in school has widely been a common complain among educators, parents and mentors (Farrand et la. 2002); Semantic mapping strategy has been considered a highly regarded form of elaborative learning (Novak 2005; Nesbitt and Adescope 2006) which encourages a deeper learning process for better memory formation. The current study investigates the impact of using semantic mapping strategy on students' ability to better learn and easily recall the new vocabulary that they have learned. In fall 2012, the study started, and subjects, who were male undergraduate Saudi students at Qassim University, were divided into two groups: acontrol group which consisted of (50) students and taught by the conventional way of teaching vocabulary, and b- experimental group which also consisted of (50) students who were introduced to and taught the new vocabulary by semantic mapping using drawings, pictures and projector to show word mapping. Students in both groups were taught 400 words in four weeks period. The findings indicate that 1) the semantic mapping strategy was highly effective, 2) subjects in the experimental group, introduced to and taught by semantic mapping, were faster in memorizing the new vocabulary with its forms: definition, spelling, pronunciation, and recognition, 3) subjects in group (b) scored significantly higher in learning the new English vocabulary list than those in group (a), 4) subjects in the experimental group could recall the new English vocabulary list significantly longer, up to 60 % than those in the control group. Key words: semantic mapping, strategy, recall, students' ability, and English vocabulary. Research overview: Currently, It has been estimated that more than a billion and half people around the world speak and understand English in various levels (Lazaro & Dorothea, 2004). As a result, teaching and learning English is becoming even more necessary for the following generations, especially with the massive expansion of technology and modern communication which has made the universe a small village. Vocabulary is, however, a crucial part of any given language, and it would be the thing that all learners, teachers and researchers would agree upon its importance in second language competence (Shmitt, 2008, Al-Zahrani, 2011). It has been, moreover, argued that when students could not understand the key words in a text, it is more likely that they either would not understand the text as a whole or miss a large portion of it which might lead to a misunderstanding or misinterpretation of it (Christ & Wang, 2010). Symantec mapping, as a result, has been introduced as an effective strategy to help foreign languages' students to learn vocabulary better and recall what they have learned easily (Hallie, Yopp & Bishop, 2009, and Baleghizadeh & Naeim, 2011). Moreover, as Irvin (1990) points out that this effective strategy can be used as an activity either before or after reading a passage or writing exercise. The Symantec mapping strategy has been defined as " a visual strategy for graphically representing concepts, terms or words by displaying in categories words related to one another." (Wang & Yu, 2008, Foil & Alber, 2002). So, it is a group of words visually presented which relate to each other in one way or another. The study here is trying to investigate the effectiveness of using semantic mapping strategy on Saudi students' ability, who were studying at Qassim University in fall 2012, to learn and easily recall the new vocabulary that they have leaned. Subjects were divided into groups: a) control group which consisted of (50) students and taught by the conventional way of teaching vocabulary, and b) experimental group which also consisted of (50) students who were introduced to and taught by semantic mapping strategy. Students in both groups were taught 400 new vocabulary words in four weeks periods; almost 100 new vocabulary were introduced and explained for subject participants each week. In the control group, no visual strategy or even instruction was used. Subjects were taught in the conventional way of teaching vocabulary through their textbook only. In contrast, visual strategy, mainly semantic mapping, was used and integrated into the teaching of the new vocabulary for the experimental group; drawings, pictures and projector showing the relationship between studied vocabulary were used. However, subjects in both groups were given pre and post test; in which their knowledge of the different forms of the 400 new vocabulary were assessed: definition, spelling, pronunciation, and recognition . Before the treatment, pre-test were administered for both groups, and no significant differences were detected. In fact, pre-test scores were very similar in both groups and no significant differences were found. The findings indicated that 1) the semantic mapping strategy was highly effective, 2) subjects in the experimental group, introduced to and taught by semantic mapping, were faster in memorizing the new vocabulary with its forms: definition, spelling, pronunciation, and recognition, 3) subjects in group (b) were significantly different in learning the new English vocabulary list than those who were not introduced with the strategy, 4) students could recall the new English vocabulary list significantly longer, up to 60 % than the control group.