dynamic assessment according to vygotskys sociocultural theory, states that instruction and assessment are interrelated. using static forms of assessment with second and foreign language students could do more harm than good. many teachers neglect to take account of the complexity involved in learning a second or foreign language and often wonder why learning of a language take so long. thi...

even though, to date, a lot of studies have been conducted on the subject of politeness theory, there are very few studies regarding the applicability of this theory to translation between english and persian which shows the reason behind conducting the present study. this study was carried out with the aim of highlighting whether there is any difference between english and persian methods of u...

abstract the present study tried to investigate the effect of visual aids (films) on the development of the speech act of disagreement among iranian efl intermediate learners. to this end, the researcher selected 40 homogeneous intermediate learners based on their scores on oxford placement test. .the subjects then divided into control group and experimental group. both classes were tested by ...

abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...

the effect of learning strategies on the speaking ability of iranian students in the context of language institutes abstract language learning strategies are of the most important factors that help language learners to learn a foreign language and how they can deal with the four language skills specifically speaking skill effectively. acknowledging the great impact of learning strategies...

رودخانه ها به عنوان یکی از منابع اساسی تامین آب برای مصارف مختلف مطرح می باشند. از این رو پایش کیفیت این منابع با توجه به خشکسالی های اخیر و توسعه شهری و روستایی یکی از وظایف مهم در حیطه مدیریت محیط زیست مصوب می گردد. رودخانه کارون اهمیت بسیاری در تأمین آب آشامیدنی، حفظ حیات صنعتی استان خوزستان و تامین آب کشاورزی دارد. بنابراین مدیریت و کنترل کیفیت این منبع آبی از اهمیت ویژه­ای برخوردار است.  ...

مقاله حاضر، باهدف مشخص کردن معیارهای اقلیمی و شناخت رتبه عوامل مؤثر بر کشت زعفران و ارزیابی تأثیر آن در شهرستان رشتخوار از توابع استان خراسان رضوی انجام گردیده است. فرضیه اصلی تحقیق این است که شهرستان رشتخوار شرایط لازم، جهت کاشت و افزایش زیر کشت بردن، محصول زعفران را دارد و در طول تحقیق همواره این سؤال مدنظر بوده که کدام یک از عوامل اقلیمی تأثیر بیشتری بر کشت زعفران در شهرستان رشتخوار داشته اس...

abstract listening is a key and main tool in second language skill and its development is of prime concern to teachers and learners. furthermore, the application of technology in language classrooms has become more commonplace in the last fifty years. computer and the internet have made foreign language materials easy to access and use. so, the present study is an attempt to examine the effec...