The effect of multimedia annotation modes on l2 vocabulary acquisition: A comparative study

One aspect of second language teaching via multimedia to have received attention over the past few years is the impact of glossing individual vocabulary words through different modalities.This study examines which of the image modalities--dynamic video or still picture--is more effective in aiding vocabulary acquisition.The participants, 30 ESL students, were introduced to a hypermedia-learning program, designed by the researcher for reading comprehension.The program provides users reading a narrative English text with a variety of glosses or annotations for words in the form of printed text, graphics, video, and sound, all of which are intended to aid in the understanding and learning of unknown words.A within-subject design was used in this study with 30 participants being measured under three conditions: printed text definition alone, printed text definition coupled with still pictures, and printed text definition coupled with video clips.In order to assess the efficacy of each mode, a vocabulary test was designed and administered to participants after they had read the English narrative.Two types of tests were administered: recognition and production.In addition, a face-to-face interview was conducted, and questionnaires were distributed.Results of the both tests were analyzed using analysis of variance procedures.The investigation has yielded the conclusion that a video clip is more effective in teaching unknown vocabulary words than a still picture.Among the suggested factors that explain such a result are that video better builds a mental image, better creates curiosity leading to increased concentration, and embodies an advantageous combination of modalities (vivid or dynamic image, sound, and printed text).