To individualize instruction, a tutor must infer which knowledge components the student knows and does not know. Self-assessments, by which the student directly reports to the tutor whether a certain item is known, are a fast measure of student knowledge. We investigate their use to initialize a learner model used to individualize instruction ESL vocabulary. Experimental results indicate that s...

Vocabulary learning and teaching has been one of the main issues in ESL/EFL learning and teaching research. EFL teachers in China, in particular, are grappling with the effective vocabulary teaching methods. This paper is doing part of this job in a different way. It discusses three principles based on Cognitive Linguistics (CL), namely the study of categorization, prototype, and metaphor, and ...

The importance of vocabulary learning has been underlined in the field of English for Academic Purposes (EAP) because non-English majors who require reading English texts in their fields of study have to expand their English vocabulary knowledge much more efficiently than ordinary ESL/EFL learners. Since academic vocabulary instruction in Iranian universities is realized through the use of Gene...

Although the importance of vocabulary training in English speaking countries is well recognized and has been extensively studied, the same is not true for Spanish-few evidence based vocabulary studies for Spanish-speaking children have been reported. Here, two rich oral vocabulary training programs (definition and context), based on literature about vocabulary instruction for English-speaking c...

this study examined the effects of cooperative learning techniques (clt) on vocabulary achievement of reflective/impulsive iranian efl learners. from among 130 students at fajr institute in dehdasht, kohkiloyeh and boyer ahmad province, iran, 90 participants were selected based on their performance on the oxford placement test (opt). the participants were then divided into two experimental grou...

This quasi-experimental study investigated the effect of bottom-up and top-down instructional approaches on English as a foreign language (EFL) vocabulary recall and retention. To this end, 44 high school students from two intact classes were assigned to bottom-up (n = 21) and top-down (n = 23) groups. The participants were exposed to 20 hours of explicit vocabulary instruction during 10 weeks ...

This study sought to examine the effects of a teacher-designed, differentiated instructional model on the reading skills (i.e., fluency and vocabulary) of struggling third grade readers. Participants included eight struggling third grade students in the intervention classroom and a comparison group of eight struggling third grade students in a control classroom. Participants completed measures ...

According to Oxford (1990), strategies are steps taken by students to enhance their own learning. This research attempted to investigate the impact of teaching vocabulary learning strategies on short-term and long-term retention of vocabulary items. The sample participants included 303 females randomly selected from one all-female governmental Pre-university school (PUC) in Iran. They were then...